HomeMy WebLinkAboutFile Documents.1350 Mountain View Dr.0300.2017 (21).ARBK1Heat & Glo • MEZZO36-B/ST-B, MEZZO48-B/ST-B, MEZZO60-B/ST-B, MEZZO72-B/ST-B Installation Manual • 2300-973 Rev. i • 5/17
Models:
Installation Manual
Installation and Appliance Setup
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
MEZZO36-B
MEZZO36ST-B
MEZZO48-B
MEZZO48ST-B
MEZZO60-B
MEZZO60ST-B
MEZZO72-B
MEZZO72ST-B
NOTICE: DO NOT discard this manual!
In the Commonwealth of Massachusetts installation must be
performed by a licensed plumber or gas fitter.
See Table of Contents for location of additional Commonwealth
of Massachusetts requirements.
This appliance may be installed as an OEM
installation in manufactured home (USA
only) or mobile home and must be installed
in accordance with the manufacturer’s
instructions and the Manufactured Home
Construction and Safety Standard, Title 24
CFR, Part 3280 in the United States, or the
Standard for Installation in Mobile Homes,
CAN/CSA Z240 MH Series, in Canada.
This appliance is only for use with the type(s)
of gas indicated on the rating plate. This
appliance is not convertible for use with other
gases, unless a certified kit is used.
• DO NOT store or use gasoline or other flam-
mable vapors and liquids in the vicinity of this
or any other appliance.
• What to do if you smell gas
- DO NOT try to light any appliance.
- DO NOT touch any electrical switch. DO NOT use any phone in your building.
- Leave the building immediately.
- Immediately call your gas supplier from a neighbor’s phone. Follow the gas sup-
plier’s instructions.
- If you cannot reach your gas supplier, call
the fire department.
• Installation and service must be performed
by a qualified installer, service agency, or the
gas supplier.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
DANGER
HOT GLASS WILL CAUSE BURNS.
DO NOT TOUCH GLASS UNTIL COOLED.
NEVER ALLOW CHILDREN TO TOUCH GLASS.
A barrier designed to reduce the risk of
burns from the hot viewing glass is provided
with this appliance and shall be installed for
the protection of children and other at-risk
individuals.
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Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Used to address practices not related to personal injury.
Table of Contents
Installation Standard Work Checklist ....................3
1 Product Specific and Important Safety Information
A. Appliance Certification ............................4
B. Glass Specifications ..............................4
C. BTU Specifications ...............................4
D. High Altitude Installations ..........................4
E. Non-Combustible Materials Specification. . . . . . . . . . . . . . 5
F. Combustible Materials Specification .................5
G. Electrical Codes .................................5
H. Requirements for the Commonwealth of Massachusetts . .6
2 Getting Started
A. Design and Installation Considerations ...............7
B. Good Faith Wall Surface/TV Guidelines ..............7
C. Tools and Supplies Needed ........................8
D. Inspect Appliance and Components ..................8
3 Framing and Clearances
A. Appliance/Decorative Front Dimension Diagrams .......9
B. Clearances to Combustibles ......................16
C. Constructing the Appliance Chase ..................20
D. Floor Protection ................................20
4 Termination Location and Vent Information
A. Vent Termination Minimum Clearances ..............21
B. Chimney Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
C. Approved Pipe .................................23
D. Use of Elbows .................................23
E. Measuring Standards ............................23
F. Vent Diagrams .................................23
5 Vent Clearances and Framing
A. Pipe Clearances to Combustibles ..................31
B. Wall Penetration Framing/Firestops .................31
C. Install the Ceiling Firestop ........................32
D. Install Attic Insulation Shield .......................32
E. Installing the Optional Heat-Zone® or Heat-Duct Gas Kit .33
6 Appliance Preparation
A. Top Standoff Preparation .........................34
B. Vent Collar Preparation ..........................34
C. Securing and Leveling the Appliance ................35
D. Installing Non-Combustible Facing Material ..........36
7 Venting and Chimneys
A. Assemble Vent Sections .........................37
B. Assemble Slip Sections ..........................38
C. Secure The Vent Sections ........................38
D. Disassemble Vent Sections .......................39
E. Vertical Termination Requirements ..................40
F. Horizontal Termination Requirements ...............41
8 Electrical Information
A. General Information .............................43
B. Wiring Requirements ............................44
9 Gas Information
A. Fuel Conversion ................................45
B. Gas Pressure ..................................45
C. Gas Service Access .............................45
D. Gas Connection ................................47
E. High Altitude Installations .........................47
F. Air Shutter Setting ..............................48
10 Finishing
A. Facing and Finishing Instructions. . . . . . . . . . . . . . . . . . . 49
B. Decorative Fronts ...............................53
C. Mantel and Wall Projections .......................58
11 Appliance Setup
A. Fixed Glass Assembly ...........................60
B. Remove the Shipping Materials/Install Bottom Glass
Shield ........................................60
C. Clean the Appliance .............................60
D. Install Glass Refractory Panels ....................61
E. Install Media ..................................62
F. Install Log Set .................................62
12 Reference Materials
A. Vent Components Diagrams ......................63
B. Accessories ...................................69
= Contains updated information.
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Installation Standard Work Checklist
Customer:
Lot/Address:
Model (circle one): MEZZO36-B MEZZO48-B MEZZO60-B MEZZO72-B
MEZZO36ST-B MEZZO48ST-B MEZZO60ST-B MEZZO72ST-B
Date Installed:
Location of Fireplace:
Installer:
Dealer/Distributor Phone #
Serial #:
Comments: Further description of the issues, who is responsible (Installer/ Builder/ Other Trades, etc) and corrective
action needed _____________________________________________________________________________________Comments Communicated to party responsible ____________________ by ______________________on ___________
(Builder / Gen. Contractor/) (Installer) (Date)
Appliance Install Sections 3 and 6 YES IF NO, WHY?
Veri ed that the chase is insulated and sealed. (Pg. 20) ___________________________
Required factory included non-combustible board is installed. (Pg 36) ___________________________
Standoffs bent up into installation position and secured. (Pg. 34) ___________________________Veri ed clearances to combustibles. (Pg. 16-19) ___________________________
Fireplace is leveled and secured. (Pg. 35) ___________________________
Pipe heat shield is bent up and attached to header. Header no wider than
3.5 in.(2x4) (Pg. 18, 19, 34) ___________________________ Venting/Chimney Sections 4,5 and 7
Venting con guration complies to vent diagrams. (Pg 23-30) ___________________________
Venting installed, locked, and secured in place with proper clearance. ___________________________
Firestops installed. (Section 5) ___________________________Attic insulation shield installed. (Pg 32) ___________________________
Exterior wall/Roof ashing installed and sealed. (Section 7) ___________________________
Terminations installed and sealed. (Section 7) ___________________________
Electrical Section 8 (Pg 43-44)
Unswitched power (110-120 VAC) provided to the appliance. ___________________________
Switch wires properly installed. ___________________________
Gas Section 9 (Pg 45-48)Proper appliance for fuel type. ___________________________
Was a conversion performed? ___________________________
Leak check performed and inlet pressure veri ed. ___________________________
Veri ed proper air shutter setting for installation type. ___________________________
Finishing Section 10 (Pg 49-59)
Combustible materials not installed in non-combustible areas. ___________________________
Veri ed all clearances meet installation manual requirements. ___________________________
Finishing done correctly using inside t or overlap t method. ___________________________ Bottom nishing template and nishing guards removed. ___________________________
Mantels and wall projections comply with installation manual requirements. ___________________________
Appliance Setup Section 11 (Pg 60-62)
All packaging and protective materials removed (inside & outside of appliance). ___________________________Refractories and media installed correctly. ___________________________
Glass assembly installed and secured. ___________________________
Accessories installed properly. ___________________________
Decorative front properly installed. ___________________________
Manual bag and all of its contents are removed from inside/under the appliance and given to party responsible for use and operation. ___________________________
Started appliance and veri ed no gas leaks exist. ___________________________
Lights work in all switched positions (if so equipped). ___________________________
Component heat shield is installed. (Pg. 43.) ___________________________
2300-975 Rev. B 4/17 = Contains updated information.
Hearth & Home Technologies recommends the following:
• Photographing the installation and copying this checklist for your le.
• That this checklist remain visible at all times on the appliance until the installation is complete.
This standard work checklist is to be used by the installer in conjunction with, not instead of, the instructions contained in this
installation manual.
WARNING! Risk of Fire or Explosion! Failure to install appliance according to these instructions can
lead to a re or explosion.
ATTENTION INSTALLER:
Follow this Standard Work Checklist
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B. Glass Specifications
This appliance is equipped with 5 mm ceramic glass. Re-
place glass only with 5 mm ceramic glass. Please contact
your dealer for replacement glass.
This product is listed to ANSI standards for “Vented Gas
Fireplace Heaters” and applicable sections of “Gas Burn-
ing Heating Appliances for Manufactured Homes and
Recreational Vehicles”, and “Gas Fired Appliances for
Use at High Altitudes”.
A. Appliance Certification
NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.
This appliance is tested and approved as either supplemen-
tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
NOTICE: This installation must conform with local codes.
In the absence of local codes you must comply with the
National Fuel Gas Code, ANSI Z223.1-latest edition in
the U.S.A. and the CAN/CGA B149 Installation Codes in
Canada.
1 Product Specific and Important Safety Information
MODEL: MEZZO36-B, MEZZO36ST-B,
MEZZO48-B,MEZZO48ST-B,
MEZZO60-B, MEZZO60ST-B,
MEZZO72-B, MEZZO72ST-B
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Heater
STANDARD: ANSI Z21.88-2014/CSA 2.33-2014
C. BTU Specifications
D. High Altitude Installations
NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.
When installing above 2000 feet elevation:
• In the USA: Reduce input rate 4% for each 1000 feet
above 2000 feet.
• In CANADA: Input ratings are certified without a
reduction of input rate for elevations up to 4500 feet
(1370 m)above sea level. Please consult provincial and/
or local authorities having jurisdiction for installations at
elevations above 4500 feet (1370 m).
Check with your local gas utility to determine proper
orifice size.
Models
(U.S. or Canada)
Maximum
Input BTU/h
Minimum
Input
BTU/h
Orifice
Size
(DMS)
MEZZO36-B
(NG)(0-2000 FT)30,000 17,500 #36
MEZZO36-B
(Propane)(0-2000 FT)29,000 15,500 #52
MEZZO36ST-B
(NG) (0-2000 FT)30,000 17,500 #36
MEZZO36ST-B
(Propane)(0-2000 FT)29,000 15,500 #52
MEZZO48-B
(NG)(0-2000 FT)40,000 21,000 .124
MEZZO48-B
(Propane)(0-2000 FT)36,000 19,500 #49
MEZZO48ST-B
(NG) (0-2000 FT)40,000 21,000 .124
MEZZO48ST-B
(Propane)(0-2000 FT)36,000 19,500 #49
MEZZO60-B
(NG)(0-2000 FT)50,000 26,000 #28
MEZZO60-B
(LP)(0-2000 FT)41,000 22,000 #48
MEZZO60ST-B
(NG)(0-2000 FT)50,000 26,000 #28
MEZZO60ST-B
(LP)(0-2000 FT)41,000 22,000 #48
MEZZO72-B
(NG)(0-2000 FT)58,000 30,000 #23
MEZZO72-B
(LP)(0-2000 FT)46,000 24,000 #45
MEZZO72ST-B
(NG)(0-2000 FT)58,000 30,000 #23
MEZZO72ST-B
(LP)(0-2000 FT)46,000 24,000 #45
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E. Non-Combustible Materials Specification
Material which will not ignite and burn. Such materials are
those consisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.
Materials that are reported as passing ASTM E 136,
Standard Test Method for Behavior of Materials in
a Vertical Tube Furnace at 750 ºC shall be considered
non-combustible materials.
F. Combustible Materials Specification
Materials made of or surfaced with wood, compressed pa-
per, plant fibers, plastics, or other material that can ignite
and burn, whether flame proofed or not, or plastered or
unplastered shall be considered combustible materials.
G. Electrical Codes
NOTICE: This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with National Electric Code
ANSI/NFPA 70-latest edition or the Canadian Electric
Code CSA C22.1.
• A 110-120 VAC circuit for this product must be pro-
tected with ground-fault circuit-interrupter protection,
in compliance with the applicable electrical codes,
when it is installed in locations such as in bathrooms
or near sinks.
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H. Requirements for the Commonwealth of
Massachusetts
For all side wall horizontally vented gas fueled equipment
installed in every dwelling, building or structure used in
whole or in part for residential purposes, including those
owned or operated by the Commonwealth and where the
side wall exhaust vent termination is less than seven (7)
feet above finished grade in the area of the venting, in-
cluding but not limited to decks and porches, the following
requirements shall be satisfied:
Installation of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gas fitter
shall observe that a hard wired carbon monoxide detector
with an alarm and battery back-up is installed on the floor
level where the gas equipment is to be installed. In addi-
tion, the installing plumber or gas fitter shall observe that
a battery operated or hard wired carbon monoxide detec-
tor with an alarm is installed on each additional level of
the dwelling, building or structure served by the side wall
horizontal vented gas fueled equipment. It shall be the
responsibility of the property owner to secure the services
of qualified licensed professionals for the installation of
hard wired carbon monoxide detectors.
In the event that the side wall horizontally vented gas fu-
eled equipment is installed in a crawl space or an attic,
the hard wired carbon monoxide detector with alarm and
battery back-up may be installed on the next adjacent
floor level.
In the event that the requirements of this subdivision can
not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply
with the above requirements; provided, however, that dur-
ing said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.
Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in accor-
dance with the above provisions shall comply with NFPA
720 and be ANSI/UL 2034 listed and IAS certified.
Signage
A metal or plastic identification plate shall be permanent-
ly mounted to the exterior of the building at a minimum
height of eight (8) feet above grade directly in line with the
exhaust vent terminal for the horizontally vented gas fu-
eled heating appliance or equipment. The sign shall read,
in print size no less than one-half (1/2) in. in size, “GAS
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB-
STRUCTIONS”.
Inspection
The state or local gas inspector of the side wall horizon-
tally vented gas fueled equipment shall not approve the
installation unless, upon inspection, the inspector ob-
serves carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)(a)1
through 4.
Exemptions
The following equipment is exempt from 248 CMR 5.08(2)
(a)1 through 4:
• The equipment listed in Chapter 10 entitled “Equipment
Not Required To Be Vented” in the most current edition
of NFPA 54 as adopted by the Board; and
• Product Approved side wall horizontally vented gas fu-
eled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or
in part for residential purposes.
MANUFACTURER REQUIREMENTS
Gas Equipment Venting System Provided
When the manufacturer of Product Approved side wall
horizontally vented gas equipment provides a venting
system design or venting system components with the
equipment, the instructions provided by the manufacturer
for installation of the equipment and the venting system
shall include:
• Detailed instructions for the installation of the venting
system design or the venting system components; and
• A complete parts list for the venting system design or
venting system.
Gas Equipment Venting System NOT Provided
When the manufacturer of a Product Approved side wall
horizontally vented gas fueled equipment does not pro-
vide the parts for venting the flue gases, but identifies
“special venting systems”, the following requirements
shall be satisfied by the manufacturer:
• The referenced “special venting system” instructions
shall be included with the appliance or equipment in-
stallation instructions; and
• The “special venting systems” shall be Product Ap-
proved by the Board, and the instructions for that sys-
tem shall include a parts list and detailed installation
instructions.
A copy of all installation instructions for all Product Ap-
proved side wall horizontally vented gas fueled equip-
ment, all venting instructions, all parts lists for venting
instructions, and/or all venting design instructions shall
remain with the appliance or equipment at the completion
of the installation.
See Gas Connection section for additional Common-
wealth of Massachusetts requirements.
Note: The following requirements reference various
Massachusetts and national codes not contained in this
document.
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2 Getting Started
A. Design and Installation Considerations
Heat & Glo direct vent gas appliances are designed to
operate with all combustion air siphoned from outside of
the building and all exhaust gases expelled to the outside.
No additional outside air source is required.
Installation MUST comply with local, regional, state and
national codes and regulations. Consult insurance carrier,
local building inspector, fire officials or authorities having
jurisdiction over restrictions, installation inspection and
permits.
Before installing, determine the following:
• Where the appliance is to be installed.
• The vent system configuration to be used.
• Gas supply piping.
• Electrical wiring requirements.
• Framing and finishing details.
• Whether optional accessories—devices such as a wall
switch or remote control—are desired.
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a qualified
service technician, service agency or your dealer.
Figure 2.1 Good Faith Wall Surface Temperatures Above Appliance
(MEZZO36-B/MEZZO36ST-B/MEZZO48-B/MEZZO48ST-B)
B. Good Faith Wall Surface/TV Guidelines
NOTICE: Temperatures listed above are taken with a
temperature measuring probe as prescribed by the test
standard used for appliance certification. Temperatures
on walls or mantels taken with an infrared thermometer
may yield increased temperatures of up to 30 degrees or
more depending on the thermometer settings and material
characteristics being measured.
MEASUREMENTS FROMTOP EDGE OF THE OPENING
6 in.
18 in.
24 in.
30 in.
36 in.
48 in.
TO CEILING
42 in.
12 in.170°F
APPLIANCE FRONT
155°F
145°F
140°F
130°F
125°F
125°F
Figure 2.2. Good Faith Wall Surface Temperatures Above Appliance
(MEZZO60-B/MEZZO60ST-B/MEZZO72-B/MEZZO72ST-B)
MEASUREMENTS FROM
TOP EDGE OF THE OPENING
6 in.
18 in.
24 in.
30 in.
36 in.
48 in.
TO CEILING
42 in.
12 in.245°F
APPLIANCE FRONT
190°F
155°F
140°F
135°F
125°F
125°F
Installation and service of this appliance should be performed by
qualified personnel. Hearth & Home Technologies recommends
HHT Factory Trained or NFI certified professionals.
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D. Inspect Appliance and Components
• Carefully remove the appliance and components from
the packaging.
• The vent system components and decorative doors and
fronts may be shipped in separate packages.
• If packaged separately, the media, refractory, and/or
optional log kits must be installed.
• Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
• Read all of the instructions before starting the instal-
lation. Follow these instructions carefully during the
installation to ensure maximum safety and benefit.
WARNING! Risk of Fire or Explosion! Damaged parts
could impair safe operation. DO NOT install damaged, in-
complete or substitute components. Keep appliance dry.
C. Tools and Supplies Needed
Before beginning the installation be sure that the following
tools and building supplies are available.
Tape measure Framing material
Pliers Non-corrosive leak check solution
Hammer Phillips screwdriver
Gloves Framing square
Voltmeter Electric drill and bits (1/4 in. magnetic)
Plumb line Safety glasses
Level Reciprocating saw
Manometer Flat blade screwdriver
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws
Caulking material (300 ºF minimum continuous exposure
rating)
Hearth & Home Technologies disclaims any responsibility
for, and the warranty will be voided by, the following actions:
• Installation and use of any damaged appliance or vent
system component.
• Modification of the appliance or vent system.
• Installation other than as instructed by Hearth & Home
Technologies.
• Improper positioning of the gas logs or the glass door.
• Installation and/or use of any component part not approved
by Hearth & Home Technologies.
Any such action may cause a fire hazard.
WARNING! Risk of Fire, Explosion or Electric Shock!
DO NOT use this appliance if any part has been under
water. Call a qualified service technician to inspect the
appliance and to replace any part of the control system
and/or gas control which has been under water.
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3 Framing and Clearances
Figure 3.1 Appliance Dimensions - MEZZO36-B, MEZZO48-B
A. Appliance/Decorative Front Dimension Diagrams
Dimensions are actual appliance dimensions. Use for reference only. For framing dimensions and clearances refer to Section 5.
Location MEZZO36-B MEZZO48-B
Inches Millimeters Inches Millimeters
A 50 1270 62 1575
B 39-1/4 997 51-1/8 1299
C 15-5/8 397 15-5/8 397
D 42-1/2 1080 42-1/2 1080
E 4 102 4 102
F 8-9/16 217 8-9/16 217
G 63 1600 63 1600
H 8-9/16 217 8-9/16 217
I 1 25 1 25
J 46-3/16 1173 58 1473
K 17-1/8 435 17-1/8 435
Location MEZZO36-B MEZZO48-B
Inches Millimeters Inches Millimeters
L 8 203 8 203
M 18-5/8 473 18-5/8 473
N 41-3/4 1060 41-3/4 1060
O 2-3/8 60 2-3/8 60
P 8-9/16 217 8-9/16 217
Q 24-1/2 622 24-1/2 622
R 7-1/4 184 7-1/4 184
S 8-7/8 225 8-7/8 225
T 2-3/4 70 2-3/4 70
U 23-3/4 603 23-3/4 603
V 30-1/2 775 30-1/2 775
BA
C
D
E
F
G
H
IJ
KM
o
N
O
P
Q
S
T
R
U
GAS ACCESS ELECTRICAL ACCESS
CENTERED ON APPLIANCEL
V
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Location MEZZO60-B MEZZO72-B
Inches Millimeters Inches Millimeters
A 74 1880 86 2184
B 63-1/8 1603 75-1/8 1908
C 15-5/8 397 15-5/8 397
D 48-1/2 1232 48-1/2 1232
E 4 102 4 102
F 8-9/16 217 8-9/16 217
G 63 1600 75 1905
H 8-9/16 217 8-9/16 217
I 1 25 1 25
J 70 1778 82 2083
K 17-1/8 435 17-1/8 435
Location MEZZO60-B MEZZO72-B
Inches Millimeters Inches Millimeters
L 8 203 8 203
M 18-5/8 473 18-5/8 473
N 47-3/4 1213 47-3/4 1213
O 2-3/8 60 2-3/8 60
P 8-9/16 217 8-9/16 217
Q 24-1/2 622 24-1/2 622
R 7-1/4 184 7-1/4 184
S 8-7/8 225 8-7/8 225
T 2-3/4 70 2-3/4 70
U 23-3/4 603 23-3/4 603
V 30-1/2 775 30-1/2 775
Figure 3.2 Appliance Dimensions - MEZZO60-B, MEZZO72-B
E
F
G
H
IJ
KM
o
N
O
P
TU
CENTERED ON APPLIANCEL
V
B
A
C
D
Q
S R
GAS ACCESS ELECTRICAL ACCESS
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Figure 3.3 Appliance Dimensions - MEZZO36ST-B, MEZZO48ST-B
Location MEZZO36ST-B MEZZO48ST-B
Inches Millimeters Inches Millimeters
A 50 1270 62 1575
B 39-1/4 997 51-1/8 1299
C 15-5/8 397 15-5/8 397
D 42-1/2 1080 42-1/2 1080
E 4 102 4 102
F 8-9/16 217 8-9/16 217
G 63 1600 63 1600
H 8-9/16 217 8-9/16 217
I 1/2 13 1/2 13
J 46-3/16 1173 58 1473
K 17-1/8 435 17-1/8 435
Location MEZZO36ST-B MEZZO48ST-B
Inches Millimeters Inches Millimeters
L 8 203 8 203
M 18-1/8 460 18-1/8 460
N 41-3/4 1060 41-3/4 1060
O 2-3/8 60 2-3/8 60
P 8-9/16 217 8-9/16 217
Q 24-1/2 622 24-1/2 622
R 7-1/4 184 7-1/4 184
S 8-7/8 225 8-7/8 225
T 2-3/4 70 2-3/4 70
U 23-3/4 603 23-3/4 603
V 30-1/2 775 30-1/2 775
G
K IM
o
O
P
ET
H
F
J
L
N
U
CENTERED ON APPLIANCE
V
B
A
C D
Q
S R
GAS ACCESS ELECTRICAL ACCESS
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Figure 3.4 Appliance Dimensions - MEZZO60ST-B, MEZZO72ST-B
Location MEZZO60ST-B MEZZO72ST-B
Inches Millimeters Inches Millimeters
A 74 1880 86 2184
B 63-1/8 1603 75-1/8 1908
C 15-5/8 397 15-5/8 397
D 48-1/2 1232 48-1/2 1232
E 4 102 4 102
F 8-9/16 217 8-9/16 217
G 63 1600 75 1905
H 8-9/16 217 8-9/16 217
I 1/2 13 1/2 13
J 70 1778 82 2083
K 17-1/8 435 17-1/8 435
Location MEZZO60ST-B MEZZO72ST-B
Inches Millimeters Inches Millimeters
L 8 203 8 203
M 18-1/8 460 18-1/8 460
N 47-3/4 1213 47-3/4 1213
O 2-3/8 60 2-3/8 60
P 8-9/16 217 8-9/16 217
Q 24-1/2 622 24-1/2 622
R 7-1/4 184 7-1/4 184
S 8-7/8 225 8-7/8 225
T 2-3/4 70 2-3/4 70
U 23-3/4 603 23-3/4 603
V 30-1/2 775 30-1/2 775
O
P
U
K IM
o
J
L
N
G
H
F
E
T
V
CENTERED ON APPLIANCE
B
A
C
D
Q
S R
GAS ACCESS ELECTRICAL ACCESS
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Figure 3.5 Loft Forge (Overlap Fit) Decorative Front Dimensions
LOFT FORGE DECORATIVE FRONT
A
B
C
D
E F
Location MEZZO36-B MEZZO48-B MEZZO60-B
Inches Millimeters Inches Millimeters Inches Millimeters
A 26-1/4 667 26-1/4 667 26-1/4 667
B 7-1/8 181 7-1/8 181 7-1/8 181
C 36-3/4 933 48-3/4 1238 60-3/4 1543
D 42-3/4 1086 54-3/4 1391 66-3/4 1695
E 13 330 13 330 13 330
F 19 483 19 483 19 483
Note: See Section 10 for hearth, mantel
and finishing requirements.
The Loft Forge decorative front has an installed depth of 3/4 in. (19 mm), measured from
the front of the non-combustible finishing material to the front of the decorative front.
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Figure 3.6 Quattro (Overlap Fit) Decorative Front Dimensions
QUATTRO DECORATIVE FRONT
A
B C
D
E F
G
Location MEZZO36-B MEZZO48-B MEZZO60-B
Inches Millimeters Inches Millimeters Inches Millimeters
A 27-1/4 692 27-1/4 692 27-1/4 692
B 5-7/8 149 5-7/8 149 5-7/8 149
C 36-7/16 926 48-9/16 1234 60-9/16 1538
D 45-5/8 1159 57-1/8 1451 69-1/8 1756
E 12-1/2 318 12-1/2 318 12-1/2 318
F 21-3/8 543 21-3/8 543 21-3/8 543
G 29-1/8 740 40-1/2 1029 52-1/2 1334
Note: See Section 10 for hearth, mantel
and finishing requirements.
The Quattro decorative front has an installed depth of 2-1/8 in. (54 mm), measured from
the front of the non-combustible finishing material to the front of the decorative front.
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Figure 3.7 Clean Face Trim Front (Inside Fit) Decorative Front Dimensions
CLEAN FACE TRIM DECORATIVE FRONT
Location MEZZO36-B MEZZO48-B MEZZO60-B MEZZO72-B
Inches Millimeters Inches Millimeters Inches Millimeters Inches Millimeters
A 39 991 51 1295 63 1600 75 1905
B 16-3/4 425 16-3/4 425 16-3/4 425 16-3/4 425
C 13-1/8 333 13-1/8 333 13-1/8 333 13-1/8 333
D 37-3/16 945 49-3/16 1249 61-3/16 1554 73-3/16 1859
E 40-5/16 1024 52-5/16 1329 64-5/16 1634 76-5/16 1938
F 24 610 24 610 24 610 24 610
G 5/8 16 5/8 16 5/8 16 5/8 16
H 25 635 25 635 25 635 25 635
H
F
C
B
E
A
D
G
Note: See Section 10 for hearth, mantel
and finishing requirements.
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B. Clearances to Combustibles
When selecting a location for the appliance it is important
to consider the required clearances to walls. See Figure
3.8 and Figure 3.9.
WARNING! Risk of Fire or Burns! Provide adequate
clearance around air openings and for service access.
Due to high temperatures, the appliance should be lo-
cated out of traffic and away from furniture and draperies.
NOTICE: Illustrations reflect typical installations and are
FOR DESIGN PURPOSES ONLY. Illustrations/diagrams
are not drawn to scale. Actual installation could vary due
to individual design preference.
Figure 3.8 Appliance Locations: MEZZO Single-Sided Models
Model A B C D E F G
MEZZO36-B Inches 62-1/2 48-1/4 88-1/8
See
Section
10, Figure
10.14 and
10.15.
24-1/2 18-3/4 1
Millimeters 1588 1226 2238 622 476 25
MEZZO48-B Inches 70-3/4 60-1/4 100-3/8 28-1/2 18-3/4 1
Millimeters 1797 1530 2550 724 477 25
MEZZO60-B Inches 79-1/2 72-1/4 112-3/8 31-3/4 18-3/4 1
Millimeters 2019 1835 2854 807 476 25
MEZZO72-B Inches 88 84-1/4 124-3/8 35-1/4 18-3/4 1
Millimeters 2235 2140 3159 895 476 25
It is important to follow the framing and finishing instruc-
tions step by step to ensure proper placement of fireplace
in the surrounding framing/finishing materials.
B
C
A BG
F
E
B
G
D
Refer to Section 10 for hearth, mantel and
wall projection information.
If a HEAT-ZONE® or HEAT-DUCT will be
installed, refer to Section 5.E for information.
2 HEAT-ZONES/HEAT-DUCTS = Add 4 IN. to dimension B
1 HEAT-ZONE/HEAT-DUCT = Add 2 IN. to dimension B
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CC
B
A
D
D
Figure 3.9 Appliance Locations: MEZZO See-Through Models
NOTICE: This See-Through appliance is NOT
designed or approved for an indoor/outdoor
application.
MODEL A B C D
MEZZO36ST-B Inches 48-1/4 17-1/8 48 1/2
Millimeters 1226 435 1219 13
MEZZO48ST-B Inches 60-1/4 17-1/8 48 1/2
Millimeters 1530 435 1219 13
MEZZO60ST-B Inches 72-1/4 17-1/8 48 1/2
Millimeters 1835 435 1219 13
MEZZO72ST-B Inches 84-1/4 17-1/8 48 1/2
Millimeters 2140 435 1219 13
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B
D
A
HEADER
DEPTH**
C
APPLIANCE MAY BE INSTALLED OFF OF FLOOR***
Figure 3.10 Clearances to Combustibles-MEZZO36-B, MEZZO48-B, MEZZO60-B, MEZZO72-B
MINIMUM FRAMING DIMENSIONS*
MEZZO48-B
A B C D E F G H I J K
Rough
Opening
(Vent Pipe)
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width)
Clearance
to Ceiling
Combustible
Floor
Combustible
Flooring
Behind
Appliance
Sides of
Appliance
Front of
Appliance
Clearance
to Ceiling
Inches 10 42 18-1/4 60-1/4 31 0 0 1 1 48 55-1/2
Millimeters 254 1067 464 1530 787 0 0 25 25 1219 1410
J
G
I
H
EF
K
E=MEASUREMENT FROM TOP OF
FIREPLACE OPENING
TO CEILING
K=MEASUREMENT FROM
BOTTOM OF FIREPLACE
TO CEILING
MINIMUM FRAMING DIMENSIONS*
MEZZO36-B
A B C D E F G H I J K
Rough
Opening
(Vent Pipe)
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width)
Clearance
to Ceiling
Combustible
Floor
Combustible
Flooring
Behind
Appliance
Sides of
Appliance
Front of
Appliance
Clearance
to Ceiling
Inches 10 42 18-1/4 48-1/4 31 0 0 1 1 48 55-1/2
Millimeters 254 1067 464 1226 787 0 0 25 25 1219 1410
MINIMUM FRAMING DIMENSIONS*
MEZZO60-B
A B C D E F G H I J K
Rough
Opening
(Vent Pipe)
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width)
Clearance
to Ceiling
Combustible
Floor
Combustible
Flooring
Behind
Appliance
Sides of
Appliance
Front of
Appliance
Clearance
to Ceiling
Inches 10 48 18-1/4 72-1/4 31 0 0 1 1 48 55-1/2
Millimeters 254 1219 464 1835 787 0 0 25 25 1219 1410
MINIMUM FRAMING DIMENSIONS*
MEZZO72-B
A B C D E F G H I J K
Rough
Opening
(Vent Pipe)
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width)
Clearance
to Ceiling
Combustible
Floor
Combustible
Flooring
Behind
Appliance
Sides of
Appliance
Front of
Appliance
Clearance
to Ceiling
Inches 10 48 18-1/4 84-1/4 31 0 0 1 1 48 55-1/2
Millimeters 254 1219 464 2140 787 0 0 25 25 1219 1410
* = Adjust framing dimensions for interior sheathing (such as sheetrock)
**= Header depth not to exceed 3-1/2 inches.
***= If appliance is installed off of floor, maintain required clearances to combustibles.
Construct platform in accordance with local building codes.
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Figure 3.11 Clearances to Combustibles-MEZZO36ST-B, MEZZO48ST-B, MEZZO60ST-B, MEZZO72ST-B
MINIMUM FRAMING DIMENSIONS*
A B C D E F G H I J
Rough
Opening
(Vent Pipe)
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width)
Clearance
to Ceiling
Combustible
Floor
Combustible
Flooring
Sides of
Appliance
Front or
Rear of
Appliance
Clearance
to Ceiling
MEZZO36ST-B in.10 42 17 48-1/4 31 0 0 1 48 55-1/2
mm 254 1067 432 1226 787 0 0 25 1219 1410
MEZZO48ST-B in.10 42 17 60-1/4 31 0 0 1 48 55-1/2
mm 254 1067 432 1530 787 0 0 25 1219 1410
MEZZO60ST-B in.10 48 17 72-1/4 31 0 0 1 48 55-1/2
mm 254 1219 432 1835 787 0 0 25 1219 1410
MEZZO72ST-B in.10 48 17 84-1/4 31 0 0 1 48 55-1/2
mm 254 1219 432 2140 787 0 0 25 1219 1410
F
G
H
E
I J
E=MEASUREMENT FROM TOP
OF FIREPLACE OPENING
TO CEILING J=MEASUREMENT FROM
BOTTOM OF FIREPLACE
TO CEILING
C
A
B
D
HEADER
DEPTH**HEADER
DEPTH**
APPLIANCE MAY BE
INSTALLED OFF OF FLOOR***
* = Adjust framing dimensions for interior sheathing (such as sheetrock)
**= Header depth not to exceed 3-1/2 inches.
***= If appliance is installed off of floor, maintain required clearances to combustibles.
Construct platform in accordance with local building codes.
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D. Floor Protection
NOTICE: Install appliance on hard metal or wood surfaces
extending full width and depth. DO NOT install directly
on carpeting, vinyl, tile or any combustible material other
than wood.
WARNING! Risk of Fire! Maintain specified air space
clearances to appliance and vent pipe:
• Insulation and other materials must be secured to prevent
accidental contact.
• The chase must be properly blocked to prevent blown
insulation or other combustibles from entering and
making contact with fireplace or chimney.
• Failure to maintain airspace could cause overheating
and fire.
Figure 3.12 Floor Protection
C. Constructing the Appliance Chase
A chase is a vertical box-like structure built to enclose the
gas appliance and/or its vent system. In cooler climates
the vent should be enclosed inside the chase.
NOTICE: Treatment of ceiling firestops and wall shield
firestops and construction of the chase may vary with the
type of building. These instructions are not substitutes
for the requirements of local building codes. Therefore,
you MUST check local building codes to determine the
requirements to these steps.
Chases should be constructed in the manner of all out-
side walls of the home to prevent cold air drafting prob-
lems. The chase should not break the outside building
envelope in any manner.
Walls, ceiling, base plate and cantilever floor of the chase
should be insulated. Vapor and air infiltration barriers
should be installed in the chase as per regional codes for
the rest of the home. Additionally, in regions where cold
air infiltration may be an issue, the inside surfaces may be
sheetrocked and taped (or an equivalent method may be
used) to achieve maximum air tightness.
To further prevent drafts, the wall shield and ceiling fire-
stops should be caulked with caulk with a minimum of
300 ºF continuous exposure rating to seal gaps. Gas line
holes and other openings should be caulked with caulk
with a minimum of 300 ºF continuous exposure rating or
stuffed with unfaced insulation. If the appliance is being
installed on a cement surface, a layer of plywood may be
placed underneath to prevent conducting cold up into the
room.
Note: Figure 3.10 and Figure 3.11, and Figure 3.12 show the
fireplace installed on the floor. However, this fireplace can be
elevated off the floor provided that the fireplace is properly
supported by framing materials and the ceiling clearances are
maintained.
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A. Vent Termination Minimum Clearances
Roof Pitch H (Min.) Ft.
Flat to 6/12...........................................................1.0*
Over 6/12 to 7/12 .................................................1.25*
Over 7/12 to 8/12 .................................................1.5*
Over 8/12 to 9/12 .................................................2.0*
Over 9/12 to 10/12 ...............................................2.5*
Over 10/12 to 11/12 .............................................3.25
Over 11/12 to 12/12 .............................................4.0
Over 12/12 to 14/12 .............................................5.0
Over 14/12 to 16/12 .............................................6.0
Over 16/12 to 18/12 .............................................7.0
Over 18/12 to 20/12 .............................................7.5
Over 20/12 to 21/12 .............................................8.0
Figure 4.1 Minimum Height From Roof To Lowest Discharge
Opening
HORIZONTALOVERHANG
VERTICALWALL
GAS DIRECT VENT
TERMINATION CAP
12
X
ROOF PITCHIS X/ 12
LOWEST DISCHARGE OPENING
2 FT.MIN.20 INCHES MIN.
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
4 Termination Location and Vent Information
Fire Risk.
Maintain vent clearance to combustibles as
specified.
• DO NOT pack air space with insulation or other
materials.
Failure to keep insulation or other materials away
from vent pipe could cause overheating and fire.
WARNING
Figure 4.2 Staggered Termination Caps
Gas, Wood or Fuel Oil
Termination Cap
B
Gas
Termination
Cap **
A *
*If using decorative cap cover(s), this distance may need to be
increased. Refer to the installation instructions supplied with the
decorative cap cover.
**
A B
6 in. (minimum) up to 20 in.
152 mm/508 mm
18 in. minimum
457 mm
20 in. and over 0 in. minimum
In a staggered installation with both gas and wood or fuel oil
terminations, the wood or fuel oil termination cap must be
higher than the gas termination cap.
* H minimum may vary depending on regional snowfall.
Refer to local codes.
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B. Chimney Diagram
Figure 4.3 Minimum Clearances for Termination
O N
P
R
Q
X = AIR SUPPLY INLET
A = 12 inches.................clearances above grade, veranda,
porch, deck or balcony
B = 12 inches.................clearance to window or door that may
be opened, or to permanently closed
window
C = 18 inches.................clearance below unventilated soffit
18 inches.................clearance below ventilated soffit
30 inches .................clearance below vinyl soffits and
electrical service
Vinyl siding shield is required if either vinyl soffits or vinyl
siding, or both, are used. See Service Parts List.
D = 6 inches...................clearance to outside corner
E = 6 inches...................clearance to inside corner
F = 3 ft. (Canada) ..........not to be installed above a gas me-
ter/regulator assembly within 3 feet
horizontally from the center-line of the
regulator
G = 3 ft ...........................clearance to gas service regulator
vent outlet
H = 9 inches (U.S.A)
12 inches (Canada). clearance to non-mechanical (unpow-
ered) air supply inlet, combustion air
inlet or direct-vent terminationi = 3 ft. (U.S.A.) 6 ft. (Canada) ...........clearance to a mechanical (powered) air supply inlet
All mechanical air intakes within 10 feet of a termination cap
must be a minimum of 3 feet below termination.J = 7 ft. ......................... On public property: clearance above paved sidewalk or a paved driveway.
A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings.
V = VENT TERMINAL
= AREA WHERE TERMINAL IS NOT PERMITTED
C
J B
D
B
F
B
A
EV
V
VV
V
V
M
H or i
V
G X
V H
AVV
H
Electrical Service
V
KV K
V
L
C
V
N = 6 inches ...........non-vinyl sidewalls
12 inches .........vinyl sidewalls
O = 18 inches .........non-vinyl soffit and overhang
42 inches .........vinyl soffit and overhang
P = 8 ft.
QMIN RMAX
1 cap 3 feet 2 x Q ACTUAL
2 caps 6 feet 1 x Q ACTUAL
3 caps 9 feet 2/3 x Q ACTUAL
4 caps 12 feet 1/2 x Q ACTUAL
QMIN = # termination caps x 3 RMAX = (2 / # termination caps) x QACTUAL
Covered Alcove Applications
(Spaces open only on one side and with an overhang)
Measure horizontal clearances from this surface.
Measure vertical clearances from this surface.
CLEARANCE = 6 IN.
CAUTION! Risk of Burns! Termination caps are HOT,
consider proximity to doors, traffic areas or where people
may pass or gather (sidewalk, deck, patio, etc.). Listed cap
shields available. Contact your dealer.
• Local codes or regulations may require different
clearances.
• Vent system termination is NOT permitted in screened
porches.
• Vent system termination is permitted in porch areas with
two or more sides open.
• Hearth & Home Technologies assumes no responsibility
for the improper performance of the appliance when the
venting system does not meet these requirements.
• Vinyl siding shield is required for use with vinyl siding.
See Service Parts list for information.
M = 18 inches ....................clearance under veranda, porch, deck,
balcony or overhang
42 inches ................vinyl or composite overhangPermitted when veranda, porch, deck or balcony is fully open on a minimum of 2 sides beneath the floor.
K = 6 inches................. clearance from sides of electrical
service
L = 12 inches................ clearance above electrical service
Location of the vent termination must not interfere with access to the
electrical service.
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E. Measuring Standards
Vertical and horizontal measurements listed in the vent
diagrams were made using the following standards:
• Pipe measurements are shown using the effective length
of pipe. See Section 12.A for information on effective
length of pipe components.
• Measurements are made from the appliance outer wrap,
not from the standoffs.
• Horizontal terminations are measured to the outside
mounting surface (flange of termination cap). See
Figure 4.3.
• Vertical terminations are measured to bottom of
termination cap.
• Horizontal pipe installed level with no rise.
General Rules:
• When penetrating a combustible wall, a wall shield
firestop must be installed.
• When penetrating a combustible ceiling, a ceiling firestop
must be installed.
• Horizontal runs of vent do not require vertical rise;
horizontal runs may be level.
• Horizontal termination cap should have a 1/4 inch
downward slant to allow any moisture in cap to be
released.
F. Vent Diagrams
C. Approved Pipe
This appliance is approved for use with Hearth & Home
Technologies DVP venting systems. Refer to Section
12.A for vent component information and dimensions.
DO NOT mix pipe, fittings or joining methods from differ-
ent manufacturers.
The pipe is tested to be run inside an enclosed wall.
There is no requirement for inspection openings at each
joint within the wall.
WARNING! Risk of Fire or Asphyxiation. This appli-
ance requires a separate vent. DO NOT vent to a pipe
serving a separate solid fuel burning appliance.
D. Use of Elbows
Diagonal runs have both vertical and horizontal vent as-
pects when calculating the effects. Use the rise for the
vertical aspect and the run for the horizontal aspect (see
Figure 4.4).
Two 45º elbows may be used in place of one 90º elbow.
On 45º runs, one foot of diagonal is equal to 8-1/2 in. (216
mm) horizontal run and 8-1/2 in. (216 mm) vertical run. A
length of straight pipe is allowed between two 45º elbows.
See Figure 4.4.
Figure 4.4
Horizontal
Vertical
8-1/2 in.12 in.8-1/2 in.11/22/2017
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Figure 4.5
Top Vent - Horizontal Termination Venting with 1 elbow
H1 V1
Fire Risk. Explosion Risk.
Do NOT pack insulation or other combustibles between ceiling firestops.
• ALWAYS maintain specified clearances around venting and firestop systems.
• Install wall shield and ceiling firestops as specified.
Failure to keep insulation or other material away from vent pipe could cause fire.
WARNING
Note: Use DVP Series
components only.MEZZO36-B, MEZZO48-B, MEZZO60-B
V1 Minimum H1 Maximum
2 ft.610 mm 1.5 ft.457 mm
3 ft.914 mm 6 ft.1.8 m
4 ft.1.2 m 9 ft.2.7 m
5 ft.1.5 m 12 ft.3.7 m
6 ft.1.8 m 15 ft.4.6 m
7 ft.2.1 m 18 ft.5.5 m
8 ft.2.4 m 21 ft.6.4 m
V1 + H1 = 63 ft. (19.2 m) Maximum
H1 = 40 ft. (12.2 m) Maximum
WARNING! Risk of Fire!
DO NOT attach elbow directly to the appliance.
• The MEZZO36-B/MEZZO36ST-B, MEZZO48-B/MEZZO48ST-B and MEZZO60-B/MEZZO60ST-B require a minimum of
24 inches of vertical venting before attaching any elbow to the appliance.
• The MEZZO72-B/MEZZO72ST-B requires a minimum of 36 inches of vertical venting before attaching any elbow to the
appliance.
MEZZO72ST-B
V1 Minimum H1 Maximum
3 ft.914 mm 3-1/2 ft.1.1 m
4 ft.1.2 m 6 ft.1.8 m
5 ft.1.5 m 9 ft.2.7 m
6 ft.1.8 m 12 ft.3.7 m
7 ft.2.1 m 15 ft.4.6 m
8 ft.2.4 m 18 ft.5.5 m
9 ft.2.7 m 21 ft 6.4 m
V1 + H1 = 63 ft. (19.2 m) Maximum
H1 = 40 ft. (12.2 m) Maximum
MEZZO36ST-B, MEZZO48ST-B, MEZZO60ST-B
V1 Minimum H1 Maximum
2 ft.610 mm 3 ft.914 mm
3 ft.914 mm 6 ft.1.8 m
4 ft.1.2 m 9 ft.2.7 m
5 ft.1.5 m 12 ft.3.7 m
6 ft.1.8 m 15 ft.4.6 m
7 ft.2.1 m 18 ft.5.5 m
8 ft.2.4 m 21 ft.6.4 m
V1 + H1 = 63 ft. (19.2 m) Maximum
H1 = 40 ft. (12.2 m) Maximum
MEZZO72-B
V1 Minimum H1 Maximum
3 ft.914 mm 1-1/2 ft.457 mm
4 ft.1.2 m 6 ft.1.8 m
5 ft.1.5 m 9 ft.2.7 m
6 ft.1.8 m 12 ft.3.7 m
7 ft.2.1 m 15 ft.4.6 m
8 ft.2.4 m 18 ft.5.5 m
9 ft.2.7 m 21 ft 6.4 m
V1 + H1 = 63 ft. (19.2 m) Maximum
H1 = 40 ft. (12.2 m) Maximum
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Figure 4.6
Top Vent - Horizontal Termination
Venting with 2 elbows
Note: Use DVP Series
components only.MEZZO36-B, MEZZO48-B, MEZZO60-B
V1 Minimum H1 + H2 Maximum
2 ft.610 mm 1.5 ft.457 mm
3 ft.914 mm 6 ft.1.8 m
4 ft.1.2 m 9 ft.2.7 m
5 ft.1.5 m 12 ft.3.7 m
6 ft.1.8 m 15 ft.4.6 m
7 ft.2.1 m 18 ft.5.5 m
8 ft.2.4 m 21 ft.6.4 m
V1 + H1 + H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 40 ft. (12.2 m) Maximum
INSTALLED
HORIZONTALLY
H2
H1 V1
MEZZO36ST-B, MEZZO48ST-B, MEZZO60ST-B
V1 Minimum H1 + H2 Maximum
2 ft.610 mm 3 ft.914 mm
3 ft.914 mm 6 ft.1.8 m
4 ft.1.2 m 9 ft.2.7 m
5 ft.1.5 m 12 ft.3.7 m
6 ft.1.8 m 15 ft.4.6 m
7 ft.2.1 m 18 ft.5.5 m
8 ft.2.4 m 21 ft.6.4 m
V1 + H1 +H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 40 ft. (12.2 m) Maximum
MEZZO72ST-B
V1 Minimum H1 + H2 Maximum
3 ft.914 mm 3-1/2 ft.1.1 m
4 ft.1.2 m 6 ft.1.8 m
5 ft.1.5 m 9 ft.2.7 m
6 ft.1.8 m 12 ft.3.7 m
7 ft.2.1 m 15 ft.4.6 m
8 ft.2.4 m 18 ft.5.5 m
9 ft.2.7 m 21 ft.6.4 m
V1 + H1 +H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 40 ft. (12.2 m) Maximum
MEZZO72-B
V1 Minimum H1 + H2 Maximum
3 ft.914 mm 1-1/2ft.457 mm
4 ft.1.2 m 6 ft.1.8 m
5 ft.1.5 m 9 ft.2.7 m
6 ft.1.8 m 12 ft.3.7 m
7 ft.2.1 m 15 ft.4.6 m
8 ft.2.4 m 18 ft.5.5 m
9 ft.2.7 m 21 ft.6.4 m
V1 + H1 +H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 40 ft. (12.2 m) Maximum
WARNING! Risk of Fire!
DO NOT attach elbow directly to the appliance.
• The MEZZO36-B/MEZZO36ST-B, MEZZO48-B/MEZZO48ST-B and MEZZO60-B/MEZZO60ST-B require a minimum of 24
inches of vertical venting before attaching any elbow to the appliance.
• The MEZZO72-B/MEZZO72ST-B requires a minimum of 36 inches of vertical venting before attaching any elbow to the
appliance.
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Figure 4.7
MEZZO36ST-B, MEZZO48ST-B, MEZZO60ST-B
V1 + V2 Minimum H1 + H2 Maximum
2 ft.610 mm 3 ft.914 mm
3 ft.914 mm 6 ft.1.8 m
4 ft.1.2 m 9 ft.2.7 m
5 ft.1.5 m 12 ft.3.7 m
6 ft.1.8 m 15 ft.4.6 m
7 ft.2.1 m 18 ft.5.5 m
8 ft.2.4 m 21 ft.6.4 m
V1 + V2 + H1 + H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 40 ft. (12.2 m) Maximum
H2
H1
V2
V1
MEZZO36-B, MEZZO48-B, MEZZO60-B
V1 + V2 Minimum H1 + H2 Maximum
2 ft.610 mm 1.5 ft.457 mm
3 ft.914 mm 6 ft.1.8 m
4 ft.1.2 m 9 ft.2.7 m
5 ft.1.5 m 12 ft.3.7 m
6 ft.1.8 m 15 ft.4.6 m
7 ft.2.1 m 18 ft.5.5 m
8 ft.2.4 m 21 ft.6.4 m
V1 + V2 + H1 + H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 40 ft. (12.2 m) Maximum
Note: Use DVP Series
components only.
MEZZO72ST-B
V1 + V2 Minimum H1 + H2 Maximum
3 ft.914 mm 3-1/2 ft.1.1 m
4 ft.1.2 m 6 ft.1.8 m
5 ft.1.5 m 9 ft.2.7 m
6 ft.1.8 m 12 ft.3.7 m
7 ft.2.1 m 15 ft.4.6 m
8 ft.2.4 m 18 ft.5.5 m
9 ft.2.7 m 21 ft.6.4 m
V1 + V2 + H1 +H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 40 ft. (12.2 m) Maximum
MEZZO72-B
V1 + V2 Minimum H1 + H2 Maximum
3 ft.914 mm 1-1/2 ft.457 mm
4 ft.1.2 m 6 ft.1.8 m
5 ft.1.5 m 9 ft.2.7 m
6 ft.1.8 m 12 ft.3.7 m
7 ft.2.1 m 15 ft.4.6 m
8 ft.2.4 m 18 ft.5.5 m
9 ft.2.7 m 21 ft.6.4 m
V1 + V2 + H1 +H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 40 ft. (12.2 m) Maximum
WARNING! Risk of Fire!
DO NOT attach elbow directly to the appliance.
• The MEZZO36-B/MEZZO36ST-B, MEZZO48-B/MEZZO48ST-B and MEZZO60-B/MEZZO60ST-B require a minimum of
24 inches of vertical venting before attaching any elbow to the appliance.
• The MEZZO72-B/MEZZO72ST-B requires a minimum of 36 inches of vertical venting before attaching any elbow to the
appliance.
Top Vent - Horizontal Termination
Venting with 3 Elbows11/22/2017
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Figure 4.8 Vertical Vent Maximum
Note: If installing a vertical vent/termination off the top of the
appliance, the optional exhaust restrictor may be needed.
V
V = 3 ft Min. (1m), 50 ft. Max. (15.2 m)
Top Vent - Vertical Termination
No Elbows
Note: Use DVP Series
components only.
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Exhaust restrictors are recommended for these vertically
terminated products which have excessive draft. Exhaust
restrictors will compensate for high draft, and restore vi-
sual flame height. If the vent configuration has a total
vertical of 20-50 feet, the included exhaust restrictor may
be needed.
Figure 4.9 Exhaust Restrictor
NOTICE: Before painting, contact your dealer for
information on the appropriate high temperature paint.
Exhaust restrictor: MEZZO36-B, MEZZO48-B,
MEZZO60-B, MEZZO72-B
1. Locate the two pilot holes in the inside firebox cham-
ber as shown in Figure 4.9.
2. Break the flue restrictor into two pieces. Do this by
bending the part back and forth until it breaks. See
Figure 4.10.
3. The setting for MEZZO36-B, MEZZO48-B, MEZ-
ZO60-B and MEZZO72-B is 2-2. Align the holes
marked “2” on the numbered exhaust restrictor piece
with the hole on the other exhaust restrictor piece.
See Figure 4.11. Align the exhaust restrictor pieces
with the pilot holes in the inner firebox chamber. Use
two 1/2 inch self-piercing screws to secure vent re-
strictor to firebox heat shield.
4. In some applications, such as those where the fire-
place is elevated off the floor, the exhaust restrictor
may be painted, but painting is not required.
EXHAUST
RESTRICTOR
PILOT
HOLES
Figure 4.10 Break the Exhaust Restrictor
1 2 3 4 5
SETTING
1 2 3 4 5
BREAK
HERE
Exhaust restrictor Instructions
Figure 4.11 Set the Exhaust Restrictor
Exhaust restrictor: MEZZO36ST-B, MEZZO48ST-B
MEZZO60ST-B, MEZZO72ST-B
1. Break the flue restrictor into two pieces. Do this by
bending the part back and forth until it breaks. See
Figure 4.10.
Note: The MEZZO36ST-B, MEZZO48ST-B, MEZ-
ZO60ST-B, and MEZZO72ST-B do not have pilot holes
for the exhaust restrictor in the firebox chamber.
2. The setting for MEZZO36ST-B, MEZZO48ST-B, MEZ-
ZO60ST-B, and MEZZO72ST-B is a 2.5 inch setting,
or 2-2. Align the holes marked “2” on the numbered
exhaust restrictor piece with the hole on the other ex-
haust restrictor piece. See Figure 4.11. Center the
exhaust restrictor on the vent and secure in place
with two 1/2 inch self-piercing screws.
3. In some applications, such as those where the fire-
place is elevated off the floor, the exhaust restrictor
may be painted, but painting is not required.
NOTICE: Before painting, contact your dealer for
information on the appropriate high temperature paint.
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Figure 4.12
Top Vent - Vertical Termination
Venting with 2 elbows
MEZZO36-B, MEZZO48-B, MEZZO60-B
MEZZO36ST-B, MEZZO48ST-B, MEZZO60ST-B
V1 + V2 Minimum H Maximum
2 ft.610 mm 4 ft.1.2 m
3 ft.914 mm 9 ft.2.7 m
4 ft.1.2 m 12 ft.3.6 m
5 ft.1.5 m 15 ft.4.5 m
V1 + H1 + V2 = 63 ft. (19.2 m) Maximum
HTotal = 23 ft. (7.1 m) Maximum
H1
V2
V1
MEZZO72-B, MEZZO72ST-B
V1 + V2 Minimum H Maximum
3 ft.914 mm 4 ft.1.2 m
4 ft.1.2 m 9 ft.2.7 m
5 ft.1.5 m 12 ft.3.6 m
6 ft.1.8 m 15 ft.4.5 m
V1 + H1 + V2 = 63 ft. (19.2 m) Maximum
HTotal = 23 ft. (7.1 m) Maximum
WARNING! Risk of Fire!
DO NOT attach elbow directly to the appliance.
• The MEZZO36-B/MEZZO36ST-B, MEZZO48-B/MEZZO48ST-B and MEZZO60-B/MEZZO60ST-B require a minimum of 24
inches of vertical venting before attaching any elbow to the appliance.
• The MEZZO72-B/MEZZO72ST-B requires a minimum of 36 inches of vertical venting before attaching any elbow to the
appliance.
Note: Use DVP Series
components only.
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Figure 4.13
Top Vent - Vertical Termination
Venting with 3 elbows
Note: Use DVP Series
components only.
MEZZO36-B, MEZZO36ST-B
MEZZO48-B, MEZZO48ST-B
MEZZO60-B, MEZZO60ST-B
V1 + V2 Minimum H1 + H2 Maximum
2 ft.610 mm 4 ft.1.2 m
3 ft.914 mm 9 ft.2.7 m
4 ft.1.2 m 12 ft.3.6 m
5 ft.1.5 m 15 ft.4.5 m
V1 + V2 + H1 + H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 23 ft. (7.1 m) Maximum
INSTALLED
HORIZONTALLY
H1
H2
V2
V1
WARNING! Risk of Fire!
DO NOT attach elbow directly to the appliance.
• The MEZZO36-B/MEZZO36ST-B, MEZZO48-B/MEZZO48ST-B and MEZZO60/MEZZO60ST-B require a minimum of 24
inches of vertical venting before attaching any elbow to the appliance.
• The MEZZO72-B/MEZZO72ST-B requires a minimum of 36 inches of vertical venting before attaching any elbow to the
appliance.
MEZZO72-B, MEZZO72ST-B
V1 + V2 Minimum H1 + H2 Maximum
3 ft.914 mm 4 ft.1.2 m
4 ft.1.2 m 9 ft.2.7 m
5 ft.1.5 m 12 ft.3.6 m
6 ft.1.8 m 15 ft.4.5 m
V1 + V2 + H1 + H2 = 63 ft. (19.2 m) Maximum
H1 + H2 = 23 ft. (7.1 m) Maximum
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A. Pipe Clearances to Combustibles
WARNING! Risk of Fire! Maintain air space clearance
to vent. DO NOT pack insulation or other combustibles:
• Between ceiling firestops
• Between wall shield firestops
• Around vent system
Failure to keep insulation or other material away from
vent pipe could cause overheating and fire.
5 Vent Clearances and Framing
B. Wall Penetration Framing/Firestops
Combustible Wall Penetration
Whenever a combustible wall is penetrated, you must
frame a hole for the wall shield firestop(s). The wall shield
firestop maintains minimum clearances and prevents cold
air infiltration.
• The opening must be framed on all four sides using the
same size framing materials as those used in the wall
construction.
• DVP pipe - A wall shield firestop must be placed on
each side of an interior wall. A minimum 1-1/2 in. (38
mm) overlap of attached heat shields must be main-
tained.
• See Section 7.F. for information for regarding the instal-
lation of a horizontal termination cap.
Non-Combustible Wall Penetration
If the hole being penetrated is surrounded by non-com-
bustible materials such as concrete, a hole with diameter
one inch greater than the pipe is acceptable.
Note: Do not pack the gap with insulation.
Whenever a non-combustible wall is penetrated, the wall
shield firestop is only required on one side and no heat
shield is necessary.
Figure 5.1 Horizontal Venting Clearances To Combustible
Materials
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).
• DVP heat shield - designed to be used on a wall 4 in. to 7-1/4 in.
(102 mm to 184 mm) thick.
• If wall thickness is less than 4 in. the existing heat shields must be
field trimmed. If wall thickness is greater than 7-1/4 in. a DVP-
HSM-B will be required.
(DVP Pipe Shown)
3 in. (76 mm)
top clearance *
1 in. (25 mm)
clearance
bottom & sides
Heat
Shield
Wall
Shield
Firestop
Heat
Shield
WALL
3 in. (76 mm)
top clearance
1 in. (25 mm)
clearance around
vertical sections
Figure 5.2 Wall Penetration
* Shows center of vent framing hole for top venting. The
center of the hole is one (1) in. (25.4 mm) above the
center of the horizontal vent pipe.
MODEL A* B
MEZZO36-B
MEZZO36ST-B
MEZZO48-B
MEZZO48ST-B
MEZZO60-B
MEZZO60ST-B
64 in. 63 in.
1.63 m 1.60 m
MEZZO72-B
MEZZO72ST-B
76 in.75 in.
1.93 m 1.90 m
A
10 in.12 in.
B
DO NOT PACK WITH
INSULATION OR
OTHER MATERIAL
Note: Measurements were taken with a 2 ft. vertical section of pipe directly
off the top of appliance.
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Figure 5.3 Installing Ceiling Firestop
Figure 5.4 Installing the Attic Shield
C. Install the Ceiling Firestop
A ceiling firestop MUST be used between
floors and attics.
• DVP pipe only - Frame an opening 10 in.
by 10 in. (254 mm by 254 mm) whenever
the vent penetrates a ceiling/floor. See
Figure 5.3.
• Frame the area with the same sized lumber
as used in ceiling/floor joist.
• The ceiling firestop may be installed above or
below the ceiling joists when installed with an
attic insulation shield. It must be under joists
between floors that are not insulated. Refer
to Figure 5.4.
• Secure with two fasteners on each side.
WARNING! Risk of Fire! DO NOT pack insu-
lation around the vent. Insulation must be kept
back from the pipe to prevent overheating.
ATTIC ABOVE
A
PIPE
DVP
A
10 in. (254 mm)
A
INSTALL ATTIC INSULATION SHIELDS
BEFORE OR AFTER INSTALLATION OF VENT SYSTEM
CEILING FIRESTOP
INSTALLED BELOW CEILING
CEILING FIRESTOP
INSTALLED ABOVE CEILING
D. Install Attic Insulation Shield
WARNING! Fire Risk. DO NOT allow loose
materials or insulation to touch vent. Hearth
& Home Technologies requires the use of an
attic shield.
The International Fuel Gas Code requires an
attic shield constructed of 26 gauge minimum
steel that extends at least 2 in. (51 mm) above
insulation.
• Attic insulation shields must meet specified
clearances to combustible materials and be
secured in place.
• An attic insulation shield kit is available from
Hearth & Home Technologies. Contact your
dealer to order. Install attic insulation shield
according to instructions included with kit.
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Figure 5.5 Heat Zone Adapter
HEAT MANAGEMENT KNOCKOUT LOCATIONS
LEFT AND RIGHT SIDES
ADAPTER BOX
E. Installing the Optional Heat-Zone® or
Heat-Duct Gas Kit
• Locate the heat management knockouts on the left and
right sides of the appliance. See Figure 5.5. Remove
the knockouts from the appliance with a tin snips.
• Center the duct collar around the exposed hole and
attach it to the appliance with 3 screws.
• Place the adapter box into position prior to the final
positioning of the fireplace as shown in Figure 5.5.
Secure using sixteen self-tapping screws. Ensure the
heat management knockouts are completely covered by
the adapter box.
WARNING! Risk of Fire! A minimum of one inch
clearance to combustible materials is required on the
sides of the adapter box.
Note: The adapter box will protrude out further than the
one inch standoffs on the appliance.
• Determine the location for the air register/fan housing
assembly.
Reference the Heat-Zone® or Heat-Duct instructions for
the remaining installation steps.
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CAUTION! Risk of Cuts, Abrasions or Flying Debris.
Wear protective gloves and safety glasses during
installation. Sheet metal edges are sharp.
B. Vent Collar Preparation
6 Appliance Preparation
WARNING! Risk of Fire! DO NOT attach elbow directly
to the appliance.
• The MEZZO36-B/MEZZO36ST-B, MEZZO48-B/
MEZZO48ST-B and MEZZO60-B/MEZZO60ST-B
require a minimum of 24 inches of vertical venting before
attaching any elbow to the appliance.
• The MEZZO72-B/MEZZO72ST-B requires a minimum of
36 inches of vertical venting before attaching any elbow
to the appliance.
4. Place the 1/8 inch thick, square fiberglass gasket over
the initial vent section.
5. Place the fiberglass rope ring over the gasket. Ensure
both the gasket and the rope ring are seated on the top
of the appliance. See Figure 6.4.
Figure 6.3 Location of Fiberglass Rope Ring
Figure 6.4 Fiberglass Rope Ring Installed
GASKET ROPE RING
A. Top Standoff Preparation
Figure 6.1 Standoffs Shown in Vertical Postion
Figure 6.2 Heat Shield Shown Installed
1. Rotate the four (4) top standoffs up into vertical position.
Push the standoff support tab on each standoff toward
the center of the appliance and fasten it in place using
the supplied screw and pilot hole. See Figure 6.1.
FIBERGLASS ROPE RING
BOTTOM PANEL SCREW LOCATIONS
PIPE HEAT SHIELD
Standoff Shipping Position Standoff Installation Position
Heat Shield Shipping Position Heat Shield Installation Position
HEAT SHIELD
1. Bend the pipe heat shield up into vertical position. See
Figure 6.2.
2. Position the pipe heat shield up against the header and
attach to header with two screws.
WARNING! Risk of Fire! Pipe heat shield must be fas-
tened to header.
3. Place a vent section on the starting collar.
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C. Securing and Leveling the Appliance
WARNING! Risk of Fire! Prevent contact with:
• Sagging or loose insulation
• Insulation backing or plastic
• Framing and other combustible materials
Block openings into the chase to prevent entry of blown-
in insulation. Make sure insulation and other materials
are secured.
DO NOT notch the framing around the appliance
standoffs. Failure to maintain air space clearance could
cause overheating and fire.
To properly position, level, and secure the appliance, see
below. Nailing tabs are provided to secure the appliance
to the framing members.
• Bend out the two nailing tabs on each side.
• Place the appliance into position.
• Keep nailing tabs flush with the framing. See Figure 6.5.
• Level the appliance from side to side and front to back.
• Shim the appliance as necessary. It is acceptable to use
wood shims underneath the appliance.
• Secure the appliance to the framing by using nails or
screws through the nailing tabs.
Some figures in manual show the fireplace installed on the
floor. However, this fireplace can be elevated off the floor
provided that the fireplace is properly supported by framing
materials and the ceiling clearances are maintained.
Figure 6.5 Nailing Tab Locations
Setting the Fireplace into the Framing
The left and right nailing tabs were designed as a means
to ensure the fireplace is mounted flush with the framing
materials. See Figures 6.5-6.7.
1. The shipping flanges protrude further out from the ap-
pliance than the side standoffs. The shipping flange
may be bent upward or broken off in order to place the
appliance into position in the framing.
2. Bend out all nailing tabs. The see-through model will
have eight nailing tabs. The single-sided model will
have four nailing tabs.
3. Screw each nailing tab to the adjoining framing
material. Ensure that the one inch air space clearance
is maintained on the sides and back of the fireplace.
See Figures 3.8-3.11 for framing and clearance details.
Figure 6.6 Nailing Tabs
Shipping Position
Figure 6.7 Nailing Tabs
Installation Position
SHIPPING
FLANGE
NAILING
TAB
SHIPPING
FLANGE
NAILING
TAB
1 IN. STANDOFF
NAILING TABS
BOTH SIDES
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Figure 6.8 Install Factory-Included Non-Combustible Facing
Material
D. Installing Non-Combustible Facing Material
WARNING! Risk of Fire!
• Follow these instructions exactly.
• Facing materials must be installed properly to prevent
fire.
• No materials may be substituted without authorization
by Hearth & Home Technologies.
• Remove protective cardboard sleeve from non-
combustible facing pieces, which are included with the
appliance.
• Install non-combustible facing material to the appliance
using the 1-1/4 inch screws supplied in the manual bag
assembly. There may be extra screws included.
• Attach top board to the framing members with regular
sheetrock screws or nails. See Figure 6.8.
• Attach left and right side pieces to framing members with
regular sheetrock screws or nails.
• Use a wet or dry towel or soft brush to remove dust or
dirt from facing material.
• See Section 10 for finishing materials guidelines.
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7 Venting and Chimneys
A. Assemble Vent Sections
Attach Vent to the Firebox Assembly
Note: The end of the pipe sections with the lanced tabs
will face toward the appliance.
Attach the first pipe section to the starting collar:
• Lanced pipe end of the starting collar.
• Inner pipe over inner collar.
• Push the pipe section until all lanced tabs snap in place.
• Lightly tug on pipe to confirm it has locked.
Figure 7.1 High Temperature Silicone Sealant
Figure 7.2
A
B
Figure 7.3
Assemble Pipe Sections
Per Figure 7.2:
• Start the inner pipe on the lanced end of section A into
the flared end of section B.
• Start the outer pipe of section A over the outer pipe of
section B.
• Once both vents sections are started, push firmly until
all lanced tabs lock into place.
• Lightly tug on the pipe to confirm the tabs have locked.
It is acceptable to use screws no longer than 1/2 in. (13
mm) to hold outer pipe sections together. If predrilling holes,
DO NOT penetrate inner pipe.
For 90º and 45º elbows that are changing the vent direction
from horizontal to vertical, one screw minimum should be
put in the outer flue at the horizontal elbow joint to prevent
the elbow from rotating. Use screws no longer than 1/2
in. (13 mm). If predrilling screw holes, DO NOT penetrate
inner pipe.Figure 7.4 Seams
Note: Make sure that the seams are not aligned to prevent
unintentional disconnection.
INCORRECT
CORRECT
Lances
Required Commercial, Multi-family (Multi-level exceeding
two stories), or High-Rise Applications
All outer pipe joints must be sealed with 100% silicone
(300 ºF minimum continuous exposure rating), including
the slip section that connects directly to the horizontal ter-
mination cap.
• Apply a bead of silicone sealant (300 ºF minimum con-
tinuous exposure rating) inside the female outer pipe
joint prior to joining sections. See Figure 7.1. OR
Apply a bead of silicone sealant (300 ºF minimum con-
tinuous exposure rating) to the outside of connecting
joint after joining sections OR
Apply aluminum foil tape (300 ºF minimum continuous
exposure rating) to the outside of connecting joint after
joining sections. On horizontal pipe runs, it is recom-
mended that the tape seam is positioned on the bottom
side of the vent pipe.
• Only outer pipes need to be sealed. All unit collar, pipe,
slip section, elbow and cap outer flues shall be sealed
in this manner, unless otherwise stated.
WARNING! Risk of Fire or Explosion! DO NOT break
silicone seals on slip sections. Use care when remov-
ing termination cap from slip pipe. If slip section seals
are broken during removal of the termination cap, vent
could leak.
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Figure 7.5 Slip Section Pilot Holes
Figure 7.6 Screws into Slip Section
Pilot hole
B. Assemble Slip Sections
• Slide the inner flue of the slip section into the inner flue
of the pipe section and the outer flue of the slip section
over the outer flue of the pipe section. See Figure 7.5.
• Slide together to the desired length.
• Continue adding pipe as necessary following instructions
in “Assembling Pipe Sections.”
NOTICE: If slip section is too long, the inner and outer
flues of the slip section can be cut to the desired length.
NOTICE: When installing a vent system with an HRC
termination cap, all pipe system joints shall be sealed using
a silicone sealant with a minimum of 300 ºF continuous
exposure rating.
• Apply a bead of silicone sealant inside the female outer
pipe joint prior to joining sections.
• Only outer pipes are sealed, sealing the inner flue is not
required.
• All unit collar, pipe, slip section, elbow and cap outer
flues shall be sealed.
• Maintain a 1-1/2 in. (38 mm) overlap between the slip
section and the pipe section.
• Secure the pipe and slip section with two screws no
longer than 1/2 in. (13 mm), using the pilot holes in the
slip section. See Figure 7.6. 120º
Figure 7.7 Securing Vertical Pipe Sections
120º
Figure 7.8 Securing Horizontal Pipe Sections
C. Secure The Vent Sections
• Vertical runs originating off the top of the appliance, with
no offsets, must be supported every 8 ft. (2.44 m) after
the maximum allowed 25 ft. (7.62 m) of unsupported rise.
• Vertical runs, after any elbow, must be supported every
5 ft. (1.52 m).
• Horizontal runs must be supported every 5 feet (1.52 m).
• Vent supports or plumbers strap (spaced 120º apart)
may be used to support. See figures 7.7 and 7.8.
• Wall shield firestops may be used to provide horizontal
support.
• Ceiling firestops have tabs that may be used to provide
vertical support.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Improper support could allow vent to sag and separate.
Use vent run supports and connect vent sections per in-
stallation instructions. DO NOT allow vent to sag below
connection point to appliance.
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D. Disassemble Vent Sections
• Rotate either section (see Figure 7.9) so the seams on
both pipe sections are aligned as shown in Figure 7.10
• Pull carefully to separate the pieces of pipe.
Figure 7.10 Align and Disassemble Vent Sections
Figure 7.9 Rotate Seams for Disassembly
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E. Vertical Termination Requirements
Install Metal Roof Flashing
• See minimum vent heights for various pitched roofs
(Figure 7.11) to determine the length of pipe to extend
through the roof.
• Slide the roof flashing over the pipe sections extending
through the roof as shown in Figure 7.12.
Roof Pitch H (Min.) Ft.
Flat to 6/12........................................1.0*
Over 6/12 to 7/12 ............................1.25*
Over 7/12 to 8/12 ..............................1.5*
Over 8/12 to 9/12 ..............................2.0*
Over 9/12 to 10/12 ............................2.5*
Over 10/12 to 11/12 .........................3.25
Over 11/12 to 12/12 ...........................4.0
Over 12/12 to 14/12 ...........................5.0
Over 14/12 to 16/12 ...........................6.0
Over 16/12 to 18/12 ...........................7.0
Over 18/12 to 20/12 ...........................7.5
Over 20/12 to 21/12 ...........................8.0
Figure 7.11 Minimum Height From Roof To Lowest Discharge
Opening
HORIZONTALOVERHANG
VERTICALWALL
GAS DIRECT VENT
TERMINATION CAP
12
X
ROOF PITCHIS X/ 12
LOWEST DISCHARGE OPENING
2 FT.MIN.20 INCHES MIN.
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
Figure 7.13 Install Bolt into Brackets
NOTICE: Failure to properly caulk the roof flashing and
pipe seams could permit entry of water.
• Caulk the gap between the roof flashing and the outside
diameter of the pipe.
• Caulk the perimeter of the flashing where it contacts the
roof surface. See Figure 7.12.
• Caulk the overlap seam of any exposed pipe sections
that are located above the roof line.
CAULK
Figure 7.12
Assemble and Install Storm Collar
CAUTION! Risk of Cuts, Abrasions or Flying Debris.
Wear protective gloves and safety glasses during instal-
lation. Sheet metal edges are sharp.
• Slide the storm collar onto the exposed pipe section
and align brackets.
• Insert a bolt (provided) through the brackets and install
nut. Do not completely tighten. See Figure 7.13.
• Slide the assembled storm collar down the pipe section
until it rests on the roof flashing (see Figure 7.14).
• Tighten nut and make sure the collar is tight against the
pipe section.
• Caulk around the top of the storm collar. See Figure 7.14.
* H minimum may vary depending on regional snowfall.
Refer to local codes.
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Termination Cap
(1 of 3)
Storm
Collar
Caulk
Screws
Figure 7.14
Install Vertical Termination Cap
• Attach the vertical termination cap by sliding the inner
collar of the cap into the inner flue of the pipe section
while placing the outer collar of the cap over the outer
flue of the pipe section.
• Secure the cap by driving three self-tapping screws
(supplied) through the pilot holes in the outer collar of
the cap into the outer flue of the pipe. See Figure 7.14.
Important Notice: Heat shields may not be field constructed.
F. Horizontal Termination Requirements
Heat Shield Requirements for Horizontal
Termination
WARNING! Risk of Fire! To prevent overheating and fire,
heat shields must extend through the entire wall thick-
ness.
• DO NOT remove the heat shields attached to the
wall shield firestop and the horizontal termination cap
(shown in Figure 7.15).
• Heat shields must overlap 1-1/2 in. (38 mm) mini-
mum.
There are two sections of the heat shield. One section
is factory-attached to the wall shield firestop. The other
section is factory-attached to the cap. See Figure 7.15.
If the wall thickness does not allow the required 1-1/2 in.
(38 mm) heat shield overlap when installed, an extended
heat shield must be used.
• If the wall thickness is less than 4 in./102 mm, the heat
shields on the cap and wall shield firestop must be
trimmed. A minimum 1-1/2 in. (38 mm) overlap MUST
be maintained.
• Use an extended heat shield if the finished wall thickness
is greater than 7-1/4 in. (184 mm).
• The extended heat shield may need to be cut to length
maintaining sufficient length for a 1-1/2 in. (38 mm)
overlap between heat shields.
• Attach the extended heat shield to either of the existing
heat shields using the screws supplied with the extended
heat shield. Refer to vent components diagrams in the
back of this manual.
• Rest the small leg on the extended heat shield on top
of the pipe section to properly space it from the pipe
section.
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Note: When using termination caps with factory-supplied
heat shield attached, no additional wall shield firestop is
required on the exterior side of a combustible wall.
Install Horizontal Termination Cap
WARNING! Risk of Fire! The telescoping flue section of
the termination cap MUST be used when connecting vent.
• 1-1/2 (38 mm) minimum overlap of flue telescoping
section is required.
Failure to maintain overlap could cause overheating
and fire.
• Vent termination must not be recessed in the wall. Siding
may be brought to the edge of the cap base.
• Flash and seal as appropriate for siding material at
outside edges of cap.
• When installing a horizontal termination cap, follow
the cap location guidelines as prescribed by current
ANSI Z223.1 and CAN/CGA-B149 installation codes
and refer to Section 6 of this manual.
CAUTION! Risk of Burns! Local codes may require in-
stallation of a cap shield to prevent anything or anyone
from touching the hot cap.
NOTICE: For certain exposures which require superior
resistance to wind-driven rain penetration, a flashing kit
and HRC caps are available. When penetrating a brick
wall, a brick extension kit is available for framing the brick.
Figure 7.15 Venting Through the Wall
INTERIOR
HEAT SHIELD OR
EXTENDED
HEAT SHIELDWALL SHIELD
FIRESTOP
HEAT SHIELD
1-1/2 IN. (38 MM) MIN.
OVERLAP
SHEATHING
SLIP SECTION
CAN BE EXTENDED
INNER VENT
OUTER VENT
EXTERIOR
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A. General Information
WARNING! Risk of Shock or Explosion! DO NOT wire
110-120 VAC to the valve or to the appliance wall switch.
Incorrect wiring will damage controls.
NOTICE: This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with National Electric Code
ANSI/NFPA 70-latest edition or the Canadian Electric
Code CSA C22.1.
• Wire the appliance junction box to unswitched 110-
120 VAC. This is required for proper operation of the
appliance.
• A 110-120 VAC circuit for this product must be protected
with ground-fault circuit-interrupter protection, in
compliance with the applicable electrical codes, when
it is installed in locations such as in bathrooms or near
sinks.
• Low voltage and 110/120 VAC voltage cannot be shared
within the same wall box.
8 Electrical Information
Electrical Service and Repair
WARNING! Risk of Shock! Label all wires prior to dis-
connection when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify proper
operation after servicing.
WARNING! Risk of Shock! Replace damaged wire with
type 105º C rated wire. Wire must have high temperature
insulation.
Junction Box Installation
WARNING! Risk of Shock! Label all wires prior to dis-
connection when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify proper
operation after servicing.
WARNING! Risk of Shock! Replace damaged wire with
type 105° C rated wire. Wire must have high temperature
insulation.
4. Route the wire through the strain relief in the outer wrap
and up through the cutout/slot located on the metal tray
under the junction box.
5. Make the connection inside the junction box to the 110-
120V wire. Connect green to the ground nut, black to
black, and white to white.
6. To reattach the junction box, insert one end of the
junction box in the slot provided and securely screw the
other end of the junction box to the control tray panel.
7. Reinstall component heat shield.
Figure 8.2 Junction Box Detail
Accessories Requirements
• This appliance may be used with a wall switch, wall
mounted thermostat and/or a remote control.
Wiring for optional Hearth & Home Technologies approved
accessories should be done now to avoid reconstruction.
Follow instructions that come with those accessories.
Figure 8.3. Valve Cavity (Lower Access Panel Removed)
In the event that the junction box may need to be ac-
cessed or installed after finish methods have been ap-
plied, access is possible by removing the bottom glass
shield.
JUNCTION BOX
LED POWER
SUPPLY
AUX
CONTROL MODULE
BATTERY
TRAY
COMPONENT HEAT SHIELD
CAUTION! Risk of Overheating! Component heat shield
MUST be installed before operating appliance. Electrical
components will be damaged.
1. Remove bottom panel by removing two screws. Screw
locations are shown in Figure 8.1. After removing two
screws, gently lift the panel off the appliance avoiding
contact with the non-combustible board if possible.
2. Remove the one screw that secures the junction box to
the control tray panel. See Figure 8.2.
3. Remove screws on left and right sides of component
heat shield and lift it out of the control cavity.
Figure 8.1 Bottom Panel Location
BOTTOM PANEL SCREW LOCATIONS
BO
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BO
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COMPONENT INSULATION
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Accessories Requirements
• This appliance ships standard with a remote control.
Wiring for optional Hearth & Home Technologies approved
accessories should be done now to avoid reconstruction.
Follow instructions that come with those accessories.
The junction box, control module, LED power supply
and wall switch receiver can be accessed by removing
the bottom glass shield and component heat shield.
The decorative front must be removed to access these
components. See Figure 8.3.
IntelliFire™ Plus Ignition System Wiring
• Wire the appliance junction box to 110-120 VAC for
proper operation of the appliance.
WARNING! Risk of Shock or Explosion! DO NOT wire
IPI controlled appliance junction box to a switched circuit.
Incorrect wiring will override IPI safety lockout.
• Refer to Figure 8.4, IPI Wiring Diagram.
• This appliance is equipped with an IntelliFire™ Plus
control valve which operates on a 6 volt/1.5 AMP system.
• Plug the 6 volt transformer plug into the appliance junction
box to supply power to the unit OR install 4 AA cell
batteries (not included) into the battery pack before use.
B. Wiring Requirements
NOTICE: Batteries should only be used as a power source
in the event of an emergency power outage. Batteries
should not be used as a primary long-term power source.
Battery polarity must be correct when installing batteries.
When using batteries as a power source, the 6-volt
transformer must be unplugged from the receptacle.
Do not store batteries in the battery pack when the
appliance is powered by the 6 volt transformer connected
to permanent electrical service.
Figure 8.4 IntelliFire™ Plus Wiring Diagram with Remote
CAUTION! Risk of Overheating! Component heat shield
MUST be installed before operating appliance. Electrical
components will be damaged.
NOTICE: When installing the power vent with the MEZZO
models, the LED will need to be disconnected from the
AUX2 (factory setting) and moved to AUX1. Plug the
power vent system into AUX2. The LED function will only
be operational on the HIGH setting.
LED LIGHT TRAY
TO JUNCTION
BOX (110V)
MODULE
I
S
FLAME
SENSE IGNITER
RC300 4.5V DC
(AAA X 3)
TO JUNCTION
BOX 110VAC
ORANGE
(PILOT)
GREEN
(MAIN)
FLAME
MODULATION
AUX300 MODULE
AUX 1 AUX 2
FAN
GROUND
BROWN
BLACK
RED
BATTERY PACK
6V DC
LED CONTROL
CORD ADAPTER
CAUTION! Risk of Overheating! DO NOT remove com-
ponent insulation from top of component heat shield.
Electrical components will be damaged.
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A. Fuel Conversion
• Make sure the appliance is compatible with available gas
types.
• Conversions must be made by a qualified service
technician using Hearth & Home Technologies specified
and approved parts.
B. Gas Pressure
• Optimum appliance performance requires proper input
pressures.
• Gas line sizing requirements will be determined in ANSI
Z223.1 National Fuel Gas Code in the USA and CAN/
CGA B149 in Canada.
• Pressure requirements are:
9 Gas Information
Gas Pressure Natural Gas Propane
Minimum inlet pressure 5.0 in. w.c.11.0 in. w.c.
Maximum inlet pressure 10.0 in. w.c.13.0 in. w.c.
Manifold pressure 3.5 in. w.c.10.0 in. w.c.
Note: Have the gas supply line installed in accordance with
local codes, if any. If not, follow ANSI 223.1. Installation
should be done by a qualified installer approved and/or
licensed as required by the locality. (In the Commonwealth
of Massachusetts installation must be performed by a
licensed plumber or gas fitter).
Note: A listed (and Commonwealth of Massachusetts ap-
proved) 1/2 in. (13 mm) T-handle manual shut-off valve
and flexible gas connector are connected to the 1/2 in. (13
mm) control valve inlet.
• If substituting for these components, please consult
local codes for compliance.
Fire Risk.
Explosion Hazard.
High pressure will damage valve.
• Disconnect gas supply piping BEFORE
pressure testing gas line at test pressures
above 1/2 psig.
• Close the manual shutoff valve BEFORE
pressure testing gas line at test pressures
equal to or less than 1/2 psig.
WARNING
WARNING! Risk of Fire or Explosion! High pressure
will damage valve. Low pressure could cause explosion.
• Verify inlet pressures. Verify minimum pressures when
other household gas appliances are operating.
• Install regulator upstream of valve if line pressure is
greater than 1/2 psig.
• Valve pressure taps are accessible by removing the
decorative front and the bottom glass shield.
Figure 9.1. Valve Pressure Taps.
Note: This appliance does include a manual gas shutoff
valve that is located in the valve compartment. This manual
gas shutoff valve is accessible for service by removing the
decorative front and the bottom glass shield. The valve is
most accessible if it is located forward in the control cavity
of the appliance.
Depending upon local code, an additional manual gas
shutoff, in a readily accessible area may be required and
located upstream from the appliance.
The bottom panel is removable if finishing material is not
installed. See Figure 9.2.
VALVE PRESSURE TAPS
C. Gas Service Access
If the finishing materials have been installed around the
appliance opening, proceed as follows:
1. Remove bottom glass shield.
2. Remove screws on left and right sides of component
heat shield and lift it out of the control cavity.
Figure 9.2. Bottom Glass Shield and Bottom Panel Location
3. Unplug the 6V transformer from the junction box.
This will turn the power off to the appliance.
CAUTION! Risk of Overheating! Component heat shield
MUST be installed before operating appliance. Electrical
components will be damaged.
BOTTOM PANEL SCREW LOCATIONS
BO
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BO
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Figure 9.5. Gas Fitting Access with Bottom Glass Shield Removed
Figure 9.4. Gas and Electrical Access - Remove Glass Window
PILOT SHIELD
BURNER ASSEMBLY
36 & 48
MEDIA TRAY
BURNER ASSEMBLY
60 & 72
GAS VALVE
GAS ACCESS
Figure 9.3. Media Tray with Burner and Pilot Shield
4. Turn the gas shutoff handle to the “OFF” position to
shut off the gas supply.
If additional access is needed, proceed as follows:
5. Remove glass assembly from appliance by unlatch-
ing the top spring latches from the glass frame and
lifting glass frame assembly out of the bottom brack-
et.
6. Remove interior media and refractory from the unit if
already installed.
7. Remove the media tray. It is attached to the interior
firebox bottom with ten screws. See Figure 9.3.
8. Remove the two screws that attach the pilot to the
burner.
9. Remove the four screws securing the burner to the
firebox sides and disengage burner from orifice. Re-
move burner. See Figure 9.3.
10. Remove the eight screws that secure the glass window.
Remove the glass window. Handle with care. See
Figure 9.4.
11. Remove light tray from appliance by lifting up and out
through the bottom glass opening.
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Figure 9.5. Gas Fitting Access with Bottom Glass Shield Removed
D. Gas Connection
• Refer to Reference Section 3.A for location of gas line
access in appliance.
• Gas line may be run through the left side of appliance.
• The gap between supply piping and gas access hole
may be caulked with caulk with a minimum of 300
ºF continuous exposure rating or stuffed with non-
combustible, unfaced insulation to prevent cold air
infiltration.
• Ensure that gas line does not come in contact with outer
wrap of the appliance. Follow local codes.
• Pipe incoming gas line into valve compartment.
• Connect incoming gas line to the 1/2 in. (13 mm)
connection on manual shutoff valve.
WARNING! Risk of Fire or Explosion! Support control
when attaching pipe to prevent bending gas line.
• A small amount of air will be in the gas supply lines.
WARNING! Risk of Fire or Explosion! Gas build-up dur-
ing line purge could ignite.
• Purge should be performed by qualified service
technician.
• Ensure adequate ventilation.
• Ensure there are no ignition sources such as sparks
or open flames.
Light the appliance. It will take a short time for air to purge
from lines. When purging is complete the appliance will
light and operate normally.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Check all fittings and connections with a non-corrosive
commercially available leak-check solution. DO NOT use
open flame. Fittings and connections could have loos-
ened during shipping and handling.
WARNING! Risk of Fire! DO NOT change valve settings.
This valve has been preset at the factory.
E. High Altitude Installations
NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.
When installing above 2000 feet elevation:
• In the USA: Reduce input rate 4% for each 1000 feet
above 2000 feet.
• In CANADA: Input ratings are certified without a
reduction of input rate for elevations up to 4500 feet
(1370 m)above sea level. Please consult provincial and/
or local authorities having jurisdiction for installations at
elevations above 4500 feet (1370 m).
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Figure 9.6 Air Shutter Location
F. Air Shutter Setting
Air shutter settings may be adjusted by a qualified install-
er at the time of installation. The air shutter is set at the
factory for minimum vertical vent run. Adjust air shutter for
longer vertical runs. See Figure 9.6.
• Refer to Gas Service Access instructions in Section 9.C
to access the air shutter.
• Loosen the 1/4 in. screw.
Air Shutter Settings
MEZZO36-B
MEZZO36ST-B
MEZZO48-B
MEZZO48ST-B
NG Propane
GLASS REFRACTORY
KIT
Standard
Opening=
3/16 in.
Standard
Opening=
Full Open
LOG KIT 1/4 in.Full Open
• Twist shutter to adjust.
• Shutter may be open for longer horizontal vent runs.
• Do not close the air shutter more than 1/16 in. for NG or
1/4 in. for propane.
• Tighten the screw.
NOTICE: If sooting occurs, provide more air by opening
the air shutter.
MEZZO60-B
MEZZO60ST-B NG Propane
GLASS REFRACTORY
KIT
Standard
Opening=
3/8 in.
Standard
Opening=
Full Open
LOG KIT 3/8 in.Full Open
MEZZO72-B
MEZZO72ST-B NG Propane
GLASS REFRACTORY
KIT
Standard
Opening=
1/2 in.
Standard
Opening=
Full Open
LOG KIT 1/2 in.Full Open
DETAIL
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10 Finishing
A. Facing and Finishing Instructions
WARNING! Risk of Fire! Comply with all minimum clear-
ances to combustibles as specified. Framing closer than the
minimums listed must be constructed entirely of noncom-
bustible materials (i.e., steel studs, concrete board, etc.).
Splatter Guard
The splatter guard is a piece of corrugated material
used to protect the appliance during the installation
process before finishing work on the whole hearth is
complete. A splatter guard is factory-installed on MEZ-
ZO models. Splatter guards must be removed before
appliance is fired.
WARNING! Risk of Fire! Remove the splatter guard be-
fore lighting the appliance. Shut off gas to the appliance
when the splatter guard is in place to prevent accidental
operation.
Finishing Instructions
It is important to follow the framing and finishing instruc-
tions to ensure proper placement of fireplace into the sur-
rounding framing/finishing materials.
Wall sheathing materials 1/2 in. thick are specified in
this installation manual to properly align with the factory-
included non-combustible material.
WARNING! Risk of Fire! Factory-included non-combus-
tible board MUST be installed. DO NOT remove or cover
it with combustible material, such as:
• Drywall (gypsum board)
• Plywood
• Materials that do not meet the ASTM E 136 Non-com-
bustibility standard (below).
Removal of installed, non-combustible board and/or use
of materials not meeting the ASTM E 136 standard could
cause fire.
Non-Combustible Materials Specification
Material which will not ignite and burn. Such materials are
those consisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.
Materials that are reported as passing ASTM E 136,
Standard Test Method for Behavior of Materials in a
Vertical Tube Furnace at 750 ºC.
WARNING! Risk of Fire! Maintain specified air space
clearances to combustibles. Inadequate air space could
cause overheating and fire.
NOTICE: The maximum finishing material not only includes
the decorative finish materials (marble, tile, slate, etc) but
also the thin set, lath, and adhesive used to attach the
decorative finish material.
Finishing Materials
This section discusses installation details associated
with the Inside and Overlap Fit methods and specifies
additional non-combustible materials required.
When finishing the wall around the fireplace, it is critical
that wall sheathing be fastened properly. Wall sheathing
fasteners, such as screws or nails, are not permitted in
some locations. See Figure 10.1.
It is acceptable to pre-drill holes and use self-tapped
screws in the factory-included non-combustible board
which may be used to lathe (a backer for tile, marble,
etc.). Screws being installed through the installed non-
combustible board should be self-tapping type with a
maximum length of 2 inches. See Figure 10.1.
When installing finish material on the lower cover panel,
DO NOT drill or install screws longer than 3/4 of an inch.
Screws longer than 3/4 of an inch could penetrate the
lower cover panel causing damage to components or
penetrate the gas line. See Figure 10.1.
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Figure 10.1 Screw Length Requirements
Note: It is acceptable to use a high temperature silicone
sealant to adhere drywall to lower cover panel.
Finish and Sealing Joints
All joints between the finished wall sheathing and the ap-
pliance must be sealed with non-combustible materials.
Sealants, such as caulk or mastic used to seal the gap
between the wall and the fireplace, should be rated at a
minimum continuous exposure to 300 ºF.
Finishing Around Opening with Gypsum Wallboard
Gypsum wallboard (drywall) joints adjacent to the fire-
place opening, including the non-combustible board on
the appliance, require special attention to minimize crack-
ing. When installing gypsum wallboard around the fire-
place, install the hole for the fireplace opening in a single
wallboard sheet, if possible. This will minimize the joints
adjacent to the fireplace opening.
Tape wall board joints around the fireplace opening with
fiberglass-mesh tape. It will provide a more crack-resis-
tant joint than paper tape. Fill, smooth and finish wall
joints with chemically setting-type joint compound. It will
provide a more crack-resistant joint than air-drying light-
weight compound.
Painting
If desired finishing includes a painted wall, 100% acrylic
latex with compatible primer is recommended around this
appliance. Oil-based or standard acrylic paints may dis-
color due to heat exposure.
The appliance is designed to mate with 1/2 in. wall
sheathing materials such as drywall, plywood, wood
composites, or non-combustible materials.
WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specified in
this manual. Overlapping materials could ignite and will
interfere with proper operation of doors and louvers.
WARNING! Risk of Fire! DO NOT install drywall or
other combustible materials directly onto the installed
non-combustible board. Overlapping materials could
ignite.
MAXIMUM SCREW LENGTH = 3/4 INCH
(LOWER COVER PANEL)
MAXIMUM SCREW LENGTH = 2 INCHES
(INSTALLED NON-COMBUSTIBLE BOARD)
NON-COMBUSTIBLE MATERIAL
ONLY IN THIS AREA
2 IN.
= NO FASTENERS IN THIS AREA
To Reduce the Risk of Sheetrock Cracking:
DO
Use all purpose joint
compound.
Use eggshell paint
(100% acrylic latex paint, gloss or semi-gloss).
To Avoid Sheetrock Cracking:
DO NOT
Use a quick set or light weight joint compound.
Use flat paint.
In regards to the sheetrock mud, apply a smooth, even
layer, covering a wide area of the wall for the best results.
For best results, follow the tips below.
WARNING! Risk of Fire! DO NOT use screws longer
than two inches when attaching finishing materials to in-
stalled non-combustible material. Screws longer than two
inches will compromise clearance and could cause over-
heating and fire.
WARNING! Risk of Fire, Explosion or Asphyxiation!
DO NOT use screws more than 3/4 of an inch long on
lower cover panel. Longer screws may penetrate gas line
or damage valve or electrical components.
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Facing Material
• Facing and/or finishing materials must not interfere with
air flow through louvers or decorative fronts.
• Facing and/or finishing materials must never overhang
into the glass opening.
• Observe all clearances when applying combustible
materials.
Figure 10.2 Finishing and Facing Materials - Single-Sided Models
Finishing - Hearth
See Inside Fit or Overlap Method sections to determine
the necessary requirements for installation of a non-
combustible hearth for this model. Only hearths made of
non-combustible materials are allowed.
1/2 IN. THICK WALL
SHEATHING
BOTTOM
FINISHING
TEMPLATE
FINISHING
GUARDS
NON-COMBUSTIBLE
FINISHING MATERIAL
OVERLAP FIT = 0-1 IN. THICK
INSIDE FIT = 1-4 IN. THICK
Decorative facing material thickness is measured from
the face of the installed non-combustible board. See Fig-
ure 10.2 and Figure 10.3.
The fronts for this appliance are compatible with non-
combustible materials. See Figure 10.2 and Figure 10.3.
Refer to Section 1.E and 1.F of this manual for definitions
and qualifications of non-combustible and combustible
materials.
Specific requirements for each method of installation are
described in this section.
Installation of finishing materials can be accomplished by
either the “overlap” or “inside-fit” method, depending on
what type of decorative front is to be installed. See Figure
10.1 and 10.2. Overlap fit decorative fronts include the
Quattro and Loft Forge. The Clean Face Trim Front (CFT)
can be either an inside fit or an overlap fit. See Table 1.
Decorative Front Finishing Method Material Thickness Trim Ring
Clean Face Trim (CFT)Inside Fit 1-4 inches Included & Not Used (Option #1)
Included & Used (Option #2)
Overlap Fit 0-1 inch Included & Used
Quattro/Loft Forge Overlap Fit 0-1 inch Not included
Table 1.
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Figure 10.3 Finishing Materials - See-Through Models
BOTTOM FINISHING TEMPLATE
1/2 IN. THICK
WALL SHEATHING
1/2 IN.
INSTALLED
NON-COMBUSTIBLE
BOARD
NON-COMBUSTIBLE
FINISHING MATERIAL
OVERLAP FIT = 0-1 IN. THICK
INSIDE FIT = 1-4 IN. THICK
NON-COMBUSTIBLE
FINISHING MATERIAL
OVERLAP FIT = 0-1 IN. THICK
INSIDE FIT = 1-4 IN. THICK
BOTTOM FINISHING TEMPLATE
FINISHING
GUARDS
FINISHING
GUARDS
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NOTICE: This one inch maximum not only includes the
decorative finish materials (marble, tile, slate, etc) but also
the thin set, lath and adhesive used to attach the decorative
finish material.
WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specified in
this manual. Overlapping materials could ignite.
Clean Face Trim Front (CFT)
Overlap Fit (0-1 Inch Thick Finishing Method)
Non-Combustible Finish Materials
1. Remove bottom finishing template from bottom access
panel. Verify that factory-installed finishing guards are
installed to ensure finishing material does not extend
into the fireplace opening. See Figure 10.2 and 10.3.
2. The non-combustible finish material, 0-1 inch thick,
should be installed up to the fireplace opening on all
four sides, including the bottom access panel, cover-
ing the eight rectangular holes. Refer to Figure 10.4
for minimum finished opening dimensions.
WARNING! Risk of Fire! DO NOT apply finishing mate-
rial beyond the finishing guard. Appliance will overheat if
finishing material extends into appliance opening.
NOTICE: Decorative front will not fit properly if finishing
material is applied beyond the finishing guard.
4. Follow Overlap Fit section of the instructions provided
with decorative front.
FIREPLACE VIEWING AREA15-3/4 IN.
51-1/8 IN.MEZZO48-B/MEZZO48ST-B
39-1/8 IN.MEZZO36-B/MEZZO36ST-B
63-1/8 IN.MEZZO60-B/MEZZO60ST-B75-1/8 IN.MEZZO72-B/MEZZO72ST-B
Figure 10.4 Minimum Finished Opening Dimensions - Clean Face Trim Front Method
Note: When a Clean Face Trim decorative front is
installed, the rectangular holes in bottom access panel
will be covered.
B. Decorative Fronts
WARNING! Risk of Burns! A decorative front is required
for this model. DO NOT operate this appliance without a
decorative front in place.
Note: See appliance Owner’s Manual for TV mounting
guidelines.
Only decorative fronts certified for use with this appliance
model may be used. Contact your dealer for a list of deco-
rative fronts that may be used.
The doors approved for use with this appliance have been
designed to be installed by two methods: Overlap Fit or
Inside Fit. Before beginning the installation, it is important
to determine with method will be used.
Decorative Front Finishing Method Material Thickness Trim Ring
Clean Face Trim (CFT)Overlap Fit 0-1 inch Included & Used
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Non-Combustible Finish Materials
WARNING! Risk of Fire!
• If a Clean Face Trim (CFT) front has been installed and
is to be replaced with a Quattro or Loft Forge decorative
front, the finishing material MUST be removed to reveal
the eight rectangular holes on the bottom access panel.
• Over-heating and fire could occur.
NOTICE: This four inch maximum not only includes the
decorative finish materials (marble, tile, slate, etc) but also
the thin set, lath and adhesive used to attach the decorative
finish material.
Note: When a Clean Face Trim decorative front is
installed, the rectangular holes in bottom access panel
will be covered.
Clean Face Trim Front (CFT)
Inside Fit (1-4 Inches Thick Finishing Method)
There are two options for this method of finishing:
With Decorative Trim Ring: (Option #2)
The trim ring, which is included with the CFT front, will be
installed and used as a finishing template. It will be left
exposed.
WARNING! Risk of Fire! DO NOT apply finishing mate-
rial beyond the trim ring. Appliance will overheat if finish-
ing material extends into appliance opening.
1. Remove bottom finishing template from bottom access
panel. Verify that factory-installed finishing guards are
installed to ensure finishing material does not extend
into the fireplace opening. See Figure 10.3.
2. The non-combustible finish material, 1-4 inches thick,
should be installed up to the fireplace opening on all
four sides, including the bottom access panel, cover-
ing the eight rectangular holes. Refer to Figure 10.4.
WARNING! Risk of Fire! DO NOT apply finishing mate-
rial beyond the finishing guard. Appliance will overheat if
finishing material extends into appliance opening.
NOTICE: Decorative front will not fit properly if finishing
material is applied beyond the finishing guard.
3. Follow Inside Fit section of the instructions provided
with decorative front.
1. Remove finishing template from bottom access panel.
2. Remove top and bottom finishing guards.
3. Install trim ring (included with CFT decorative front).
Push trim ring completely into the opening.
4. Place trim ring into position and install the four shoul-
der bolts through the trim ring as shown in Figure 10.6.
Install the screw as shown in Figure 10.5.
Finishing materials may be installed up to the trim ring but
must not extend beyond it. See Figure 10.7.
Figure 10.5. Install Trim Ring
Figure 10.6. Install Shoulder Bolts
BOTTOM GLASS SHIELD
SHOULDER
BOLTS (4)
RECTANGULAR HOLE
BOTTOM PANEL
WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specified in
this manual. Overlapping materials could ignite.
NOTICE: It is recommended that high temperature silicone
sealant (500º F minimum continuous exposure rating) be
used to adhere the trim ring to the finishing material.
Without Decorative Trim Ring: (Option #1)
Note: You will not use the trim ring, which is shipped with
the CFT front, for this application.
CFT Finishing Method Trim Ring
Inside Fit
Included & Not Used
(Option #1)
Included & Used
(Option #2)
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Figure 10.8 Finishing and Facing Materials - Inside Fit
CFT Decorative Front Only
TRIM RING
CFT FRONTS ONLY
12 IN. MAX
NON-COMBUSTIBLE HEARTH
Finishing - Raised Hearth in Front of Appliance
A non-combustible hearth may be installed in front of the
appliance only if the inside fit finishing method with CFT
doors is used.
1. Non-combustible hearth material may be placed up to
the bottom edge of the trim ring. The hearth may be a
maximum of twelve inches in depth.
TRIM RING INSTALLED
FINISH TO THIS EDGE
FINISH TO THIS EDGE OF TRIM RING
Figure 10.7 Non-Combustible Finish Material Diagram for 1-4
Inch Thick Inside Fit Method Using Trim Ring
(Option #2)
CFT FRONTS ONLY
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WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specified in
this manual. Overlapping materials could ignite.
1. Follow instructions provided with decorative front for
installation.
The non-combustible finishing material, 0-1 inch thick,
should be installed up to the fireplace opening on the top
and sides.
Use the factory-installed top finishing guard to ensure the
finishing material does not extend into the fireplace open-
ing.
Non-combustible finishing material should be installed
on the bottom up to the bottom finishing template. See
Figure 10.9. Do not cover the eight rectangular holes on
the bottom access panel. See Figure 10.10 for minimum
finished opening dimensions.
WARNING! Risk of Fire! DO NOT cover rectangular
holes on bottom access panel when installing overlap
fronts.
Figure 10.9 Non-Combustible Finish Material Diagram for 0-1 Inch Thick Overlap Fit Method (Quattro/Forge)
WARNING! Risk of Fire! DO NOT apply finishing mate-
rial beyond the top finishing guard and the bottom finish-
ing template. Appliance will overheat if finishing material
extends into appliance opening.
NOTICE: Decorative front will not fit properly if finishing
material is applied beyond the finishing guard.
Quattro and Loft Forge Decorative Front
BOTTOM PANEL
BOTTOM FINISHING TEMPLATE
= RECTANGULAR ACCESS HOLES
DO NOT COVER
NOTICE: This one inch maximum not only includes the
decorative finish materials (marble, tile, slate, etc) but also
the thin set, lath and adhesive used to attach the decorative
finish material.
Non-Combustible Finish Materials
Overlap Fit (0-1 Inch Thick Finishing Material Only)
Decorative Front Finishing Method Material Thickness Trim Ring
Quattro/Loft Forge Overlap Fit 0-1 inch Not included
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Figure 10.10 Minimum Finished Opening Dimensions - Overlap Fit Method (Quattro and Loft Forge Decorative Fronts Only)
WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specified in
this manual. Overlapping materials could ignite.
17-1/4 IN.FIREPLACE VIEWING AREA
51-1/8 IN.MEZZO48-B/MEZZO48ST-B39-1/8 IN.MEZZO36-B/MEZZO36ST-B
63-1/8 IN.MEZZO60-B/MEZZO60ST-B
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C. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clear-
ances to combustibles as specified. Framing closer than the
minimums listed must be constructed entirely of noncom-
bustible materials (i.e., steel studs, concrete board, etc.)
Combustible Mantels
Note: For non-combustible fireplace finish material (marble,
stone, etc) specifications refer to Section 10.A.
Figure 10.12 Minimum Vertical and Maximum Horizontal
Dimensions of Combustibles - MEZZO36-B and
MEZZO48-B
MEASUREMENT FROM
TOP EDGE OPENING
18 20
23
26
29
31
TO CEILING
9
12
6
3
1
Measurement from top edge opening
to bottom of appliance = 24-1/2 IN.
MAX.
Note: All measurements in inches.
MEASUREMENT FROM
TOP EDGE OPENING
24
27
30
31
TO CEILING
9
6
3
Measurement from top edge opening
to bottom of appliance = 24-1/2 IN.
MAX.
Figure 10.13 Minimum Vertical and Maximum Horizontal
Dimensions of Combustibles - MEZZO60-B and
MEZZO72-B
Note: All measurements in inches.TOP OF APPLIANCE OPENING
Figure 10.11 Location of Appliance Opening
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Non-Combustible Mantels
Note: All measurements in inches.
Figure 10.14 Minimum Vertical and Maximum Horizontal
Dimensions of Non-Combustibles - Overlap Fit
Finishing
MEASUREMENTS FROM TOP EDGE
OF THE APPLIANCE OPENING
4
5
6
13-16
3
2
1
6
7
8
9
10
11
18
31
MAX.
MIN.
TO CEILING
Measurement from top edge of opening
to bottom of appliance = 24-1/2 IN.
3 FT. MAXIMUM
4-1/2 IN.
MINIMUM
FIREPLACE OPENING
See Appliance Dimension Diagram-Dimension B
Figure 3.1 (MEZZO36-B, MEZZO48-B)
Figure 3.2 (MEZZO60-B, MEZZO72-B)
Figure 3.3 (MEZZO36ST-B, MEZZO48ST-B)
Figure 3.4 (MEZZO60ST-B, MEZZO72ST-B)
Figure 10.16 Mantel Leg or Wall Projections
(Acceptable on both sides of opening)
7 IN.
MINIMUM UNLIMITED
FIREPLACE OPENING
See Appliance Dimension Diagram-Dimension B
Figure 3.1 (MEZZO36-B, MEZZO48-B)
Figure 3.2 (MEZZO60-B, MEZZO72-B)
Figure 3.3 (MEZZO36ST-B, MEZZO48ST-B)
Figure 3.4 (MEZZO60ST-B, MEZZO72ST-B)
Note: Clearance from opening
to perpendicular wall.Note: Clearance from opening
to perpendicular wall.
Mantel Legs Or Wall Projections Extending Past The Face Of The Fireplace (Combustible or Non-Combustible)
Figure 10.17 Mantel Leg or Wall Projections
(Acceptable on both sides of opening)
OVERLAP FIT (QUATTRO/LOFT FORGE)
Figure 10.15 Minimum Vertical and Maximum Horizontal
Dimensions of Non-Combustibles - Inside Fit
Finishing
MEASUREMENTS FROM TOP EDGE
OF THE APPLIANCE OPENING
4
5
6
14-16
9 10
18
31 MIN.
MAX.
TO CEILING
Measurement from top edge of opening
to bottom of appliance = 24-1/2 IN.
7
11
INSIDE FIT (CFT)
Note: All measurements in inches.
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11 Appliance Setup
C. Clean the Appliance
Clean/vacuum any sawdust that may have accumulated
inside the firebox or underneath in the control cavity.
Figure 11.1 Fixed Glass Assembly
A. Fixed Glass Assembly
WARNING! Risk of Asphyxiation! Handle fixed glass
assembly with care. Inspect the gasket to ensure it is
undamaged and inspect the glass for cracks, chips or
scratches.
• DO NOT strike, slam or scratch glass.
• DO NOT operate fireplace with glass removed, cracked,
broken or scratched.
• Replace as a complete assembly.
Removing Fixed Glass Assembly
1. Remove the decorative front from fireplace and set
aside on work surface.
2. Remove bottom glass shield. See Figure 11.2.
3. Locate the glass latches that are on the upper edge of
the glass frame of the appliance. See Figure 11.1.
4. Use both index fingers to release the glass clips.
5. Allow glass to tilt forward. Grasp glass on the upper
return lip of glass frame and lift up and out. The glass
should lift easily out of the bottom retaining lip.
Replacing Fixed Glass Assembly
1. Locate retaining lip on lower front face of firebox.
2. Place glass assembly into retaining lip end. Tilt top of
glass assembly toward fireplace.
3. Assure proper left to right placement of glass and en-
gage all four spring latches.
4. Replace bottom glass shield and decorative front.
B. Remove the Shipping Materials/Install
Bottom Glass Shield
Remove shipping materials from inside or underneath
the firebox. Verify all components are with the fireplace.
Unwrap the bottom glass shield and replace in the same
location as shown in Figure 11.2.
Figure 11.2 Bottom Glass Shield Location
BO
T
T
O
M
G
L
A
S
S
S
H
I
E
L
D
GLASS CLIPS
BOTTOM RETAINING LIP
CAUTION! Risk of Overheating! DO NOT remove com-
ponent insulation from top of component heat shield.
Electrical components will be damaged.
Figure 11.3 Component Insulation Location
COMPONENT INSULATION
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D. Install Glass Refractory Panels
CAUTION! Risk of Cuts or Abrasions. Wear protective
gloves and safety glasses during installation.
NOTICE: Handle refractory panels with care. Refractory
may chip or crack if dropped or impacted.
Glass Panel Instructions
See-Through Models: See Section B
A. Single-Sided Models
1. Set back glass panel, labeled A in Figure 11.4, into
firebox with the smooth side of the glass facing out-
ward. Insert retaining bracket through the slot in the
inner firebox heat shield. Line up the existing hole in
the heat shield with the hole closest to the bend in the
bracket and secure in place with a screw.
The back glass panel will set on the screw heads that
hold the media tray in place.
2. Bend the hand bend on the bracket down 90 degrees.
See Figure 11.5.
3. Install side glass brackets by pushing up on the corner
of the top heat shield and use two self-tapping screws
to secure the bracket to the firebox. See Figure 11.6.
4. Install the left side panel, labeled “B” in Figure 11.4,
by sliding it into place from the front. While installing,
press the panel firmly against the firebox side.
5. Bend the tab on the glass bracket toward the side glass
panel until a 1/16 inch - 1/8 inch gap is created between
the tab and the side glass panel. See Figure 11.7.
6. Repeat for other side.
Figure 11.4 Placement of Glass Panels
A*B C
*Back panel used in single-sided models
Figure 11.6. Retaining Bracket Installation - Single-sided Models
RETAINING BRACKET
Figure 11.5. Retaining Bracket - Single-sided Models
HAND BEND TAB
Figure 11.7. Retaining Bracket Installation - See-Through Models
RETAINING BRACKET LOCATION
RETAINING BRACKET
DETAIL
B. See-Through Models:
1. Set left side glass panel, labeled B in Figure 11.4, into
firebox with the smooth side facing outward.
2. Place retaining bracket over glass panel so holes in
the bracket are against the firebox side. Use two self-
drilling screws to secure the bracket to the firebox side.
See Figure 11.7.
3. Repeat for right side panel.
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E. Install Media
A media kit is available for use with the MEZZO models.
Install rock media according to instructions included with
media kit.
F. Install Log Set
An optional log set is available for use with the MEZZO mod-
els. Install the log set per instructions included with kit.
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12 Reference Materials
A. Vent Components Diagrams
10-1/2 in.
(267 mm)
10-7/8 in.
(276 mm)
45°
7-3/8 in.
(187 mm)
11-3/8 in.
(289 mm)
1-1/4 in. (32 mm)
9-1/4 in.
(235 mm)
13-1/4 in.
(337 mm)
1/2 in. TYP
DVP90ST (90° Elbow)
10 in.
(254 mm)
10 in.
(254 mm)
1 in.
(25 mm)
12 in.
(305 mm)
14 in.
(356 mm)
1 in.
(25 mm)
8 in.
(203 mm)
6 in.
(152 mm)
10 in.
(254 mm)
1- 1/2 in.
(38 mm)
5 in.
(127 mm)12 in.
(305 mm)
UP
DVP-HVS (Vent Support)DVP-WS (Wall Shield Firestop)
DVP-FS (Ceiling Firestop)
DVP45 (45º Elbow)
DVP Pipe (see chart)
Effective
Height/Length
4-7/8 in.
( 276 mm)
(13 mm)
Finished Height: 19-3/4 in./502 mm
UNIV-AS2 (Attic Insulation Shield)
Tab=1 in.
(25.4 mm)
20-3/4 in.
(527 mm)
Pipe Effective Length
Inches Millimeters
DVP4 4 102
DVP6 6 152
DVP12 12 305
DVP24 24 610
DVP36 36 914
DVP48 48 1219
DVP6A 3 to 6 76 to 152
DVP12A 3 to 12 76 to 305
Figure 12.1 DVP Vent Components
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A. Vent Components Diagrams (continued)
Figure 12.2 DVP Vent Components
DVP-HPC1 DVP-HPC2
DVP-TRAP1 DVP-TRAP2
DVP-HPCK1-B
DVP-HPCK2-B
DVP-TRAPK2DVP-TRAPK1
DVP-TRAP
Horizontal Termination Cap
15-1/8 in.
(384 mm)
12 in.
(305 mm)
8 in.
(203 mm)
Max
Effective
Length
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm). The heat shield is designed to be
used on a wall 4 in. to 7-1/4 in. (102 mm to 184 mm) thick. If wall thickness is less than 4 in. (102 mm) the
existing heat shields must be field trimmed. If wall thickness is greater than 7-1/4 in. (184 mm) a DVP-HSM-B
will be required.
Heat
Shield
Term Cap Minimum
Effective Length
Maximum
Effective Length
Trap1 3-1/8 in. 4-5/8 in.
79 mm 117 mm
Trap2 5-3/8 in. 9-3/8 in.
137 mm 238 mm
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A. Vent Components Diagrams (continued)
Figure 12.3 DVP Vent Components
13-1/4 in.
(337 mm)
24-5/8 in.
(625 mm)
27-1/2 in.
(699 mm)
RF6MRoof Flashing Multi-pak
31 in.(787 mm)
24-5/8 in.(625 mm)
13-1/4 in.(337 mm)
RF12M
Roof Flashing Multi-pak
Cap Shield
DRC-RADIUS
13-7/8 in.
(352 mm)
9-1/2 in.
(241 mm)
14 in.
(356 mm)
COOL-ADDM
Cap Shield
11-5/8 in.
(295 mm)
5-3/4 in.
(146 mm)
7-1/8 in.
(181 mm)
12-1/8 in.
(308 mm)
DVP-BEK2
DVP-HPC Cap Brick Extension
13-7/8 in.
(352 mm)
5 in.
(127 mm)
11-7/8 in.
(302 mm)
DVP-TRAPFL
Flashing
26 in.
660 mm
DVP-HSM-B
Extended Heat Shield
12 IN.
(305 mm)
7 IN.
(178 mm)
4-15/16 IN.
A A A
1/2 IN.
(13 mm)
7/8 IN.
(22 mm)
(125 mm)
7 IN.
(178 mm)
TRAP-VSS
Vinyl Siding Shield
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A. Vent Components Diagrams (continued)
Figure 12.4 DVP Vent Components
7-1/4 in.
12 in.
305 mm
(184 mm)
5-1/4 in.(133 mm)
12-1/2 in.(318 mm)
DVP-TVHW
VerticalTermination Cap (Highwind)
1 in.
(25 mm)
14 in.
(356 mm)
3/8 in. (10 mm)
1 in. (25 mm)
7-1/4 in.
(184 mm)
7-3/4 to 10-3/8 in.
(197 to 264 mm)
DVP-FBHT
FireBrickTermination Cap
14 in.
(356 mm)
12 in.
(305 mm)
12-1/8 in.
(314 mm)
7-1/8 in.
(181 mm)
8-3/4 in.(222 mm)
1-5/8 in.
(41 mm)
16-7/8 in.(429 mm)
DVP-HPCHigh Performance Cap
DVP-TB1
Basement Vent Cap
12 in.
(305 mm)
1-1/2 in.
(38 mm)
7-3/8 in.
(187 mm)
14 in.
(356 mm)17-3/4 in.
(451 mm)
6 in.
152 mm
13 in.
(330 mm)
15 in.
(381 mm)
8-1/8 in.
(206 mm)
DVP-HRC-SS
10-7/8 in.
276 mm
10-1/2 in.
267 mm
3°87°
Effective Length
5-3/4 to 8-3/8 in.
146 to 213 mm
5-1/2 in.
140 mm
8-3/8 in.
213 mm
DVP-HRC-ZC-SS
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Optional Wire Harness
DESCRIPTION PART NUMBER
10 ft. PV Wire Harness PVI-WH10
20 ft. PV Wire Harness PVI-WH20
40 ft. PV Wire Harness PVI-WH40
60 ft. PV Wire Harness PVI-WH60
80 ft. PV Wire Harness PVI-WH80
100 ft. PV Wire Harness PVI-WH100
12-1/2 IN.
318 mm
20-3/4 IN.
527 mm
13-5/8 IN.
346 mmEFFECTIVE LENGTH
32 IN. (813 mm) MIN.
35 IN. (889 mm) MAX.
Figure 12.5 Vent Components
16 IN.
406 mm
15 IN.
(381 mm)
16-11/16 IN.
(424 mm)
9-3/16 IN.
(233 mm)
4-1/2 IN.
114 mm
16-11/16 IN.
424 mm
13-5/8 IN.
(346 mm)
12-1/2 IN.
(318 mm)
17-7/8 IN.
454 mm
7-3/8 IN.
187 mm
14 IN.
356 mm
12 IN.
305 mm
SLP-TB1
Basement Vent Cap
Note: SLP-LPC, SL-2DVP and DVP-2SL
components must be accompanied by a
PVI-SLP-B.
SL-2DVP
Adapter
3-15/16 in.
(101 mm)
6-11/16 in.
(169 mm)
8 in.
(203 mm)
3-15/16 in.
(101 mm)
3-13/16 in.
(97 mm)
5-1/16 in.
(128 mm)
6-3/8 in.
163 mm
4-3/16 in.
106 mm
4-5/8 in.
117 mm
5-1/16 in.
128 mm8-1/8 in.
206 mm
DVP-2SL
Adapter
4 in.
102 mm
A. Vent Components Diagrams (continued)
PVI-SLP-B
Power Vent Inline
SLP-LPC
SLP Low Profile Cap
(Approved for use with PVI-SLP-B only)
Note: Wire harnesses required to power the PVI-SLP-B connect
to the appliance and are ordered separately from PVI-SLP-B.
Contact your dealer to order.
Note: The PVI-SLP-B requires a PV-IPI-CK be installed on this
appliance. The PV-IPI-CK is ordered separately from the PVI-
SLP-B. Contact your dealer to order.
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Required Wire Harness
DESCRIPTION PART NUMBER
10 FT PV Wire Harness PVI-WH10
20 FT PV Wire Harness PVI-WH20
40 FT PV Wire Harness PVI-WH40
60 FT PV Wire Harness PVI-WH60
80 FT PV Wire Harness PVI-WH80
100 FT PV Wire Harness PVI-WH100
Figure 12.6 PVLP-SLP Vent Components
PVLP-HS
Heat Shield
14 IN.
356 mm
15-1/2 IN.
394 mm
11-1/2 IN.
292 mm
8 IN.
203 mm
4-3/8 IN.
112 mm 10 IN.
254 mm
5-1/4 IN.
135 mm
2-1/4 IN.
57 mm
9-1/2 IN.
241 mm
4-3/4 IN.
121 mm
2-1/4 IN.
57 mm
1-1/2 IN.
38 mm
6-1/4 IN.
159 mm
Front View
Top View
Side View
PVLP-BEK
Brick Kit
A. Vent Components Diagrams (continued)
Note: Wire harnesses required to power the PVI-SLP-B connect to the appliance and are ordered separately from
PVI-SLP-B. Contact your dealer to order.
Note: The PVI-SLP-B requires a PV-IPI-CK be installed on this appliance. The PV-IPI-CK is ordered separately from
the PVI-SLP-B. Contact your dealer to order.
Note: A PVLP-HS heat shield is available and sold separately. Use if the PVLP-SLP is installed in a high traffic area.
PVLP-SLP
Power Vent Low Profile
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B. Accessories
Remote Controls, Wall Controls and Wall
Switches
Follow the instructions supplied with the control installed
to operate your fireplace:
For safety:
• Install a switch lock or a wall/remote control with child
protection lockout feature.
• Keep remote controls out of reach of children.
Contact your dealer if you have questions.
Printed in U.S.A. - Copyright 2017
Heat & Glo, a brand of Hearth & Home Technologies
7571 215th Street West, Lakeville, MN 55044
www.heatnglo.com
Please contact your Heat & Glo dealer with any questions or concerns.
For the location of your nearest Heat & Glo dealer,
please visit www.heatnglo.com.
Optional Heat-Zone®/Heat Duct Kit
Follow the instruction supplied with the kit for operation.
• Preparation for installation of Heat-Zone® or Heat Duct
Kit is discussed in Section 5.E.
Contact your dealer if you have questions.
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