HomeMy WebLinkAboutFile Documents.809 S Aspen St.0219.2018 (8).ARBK1Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Installation Manual
Installation and Appliance Setup
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
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.
• 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. Models:
COSMO42-IFT
COSMO32-IFT
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.
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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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/182
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 ..........................7
C. Tools and Supplies Needed ........................7
D. Inspect Appliance and Components ..................8
3 Framing and Clearances
A. Appliance/Decorative Front Dimension Diagrams .......9
B. Clearances to Combustibles ......................13
C. Constructing the Appliance Chase ..................15
4 Termination Location and Vent Information
A. Vent Termination Minimum Clearances ..............16
B. Chimney Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
C. Approved Pipe .................................18
D. Use of Elbows .................................19
E. Measuring Standards ............................20
F. Use of Flex Vent (SLP-FLEX Series 6-5/8 Inch) .......21
G. Vent Diagrams .................................21
5 Vent Clearances and Framing
A. Pipe Clearances to Combustibles ..................33
B. Wall Penetration Framing/Firestops .................33
C. Ceiling Firestop/Floor Penetration Framing ...........34
D. Install Attic Insulation Shield .......................34
6 Appliance Preparation
A. Vent Collar Preparation ..........................35
B. Installing Optional Heat Management Systems ........36
C. Securing and Leveling the Appliance ................36
D. Non-Combustible Material Installation ...............37
7 Venting and Chimneys
A . Assemble Vent Sections .........................38
B. Assemble Slip Sections ..........................39
C. Secure the Vent Sections .........................40
D. Disassemble Vent Sections .......................40
E. Vertical Termination Requirements ..................41
F. Horizontal Termination Requirements ...............42
8 Electrical Information
A. General Information .............................44
B. Wiring Requirements ............................45
9 Gas Information
A. Fuel Conversion ................................49
B. Gas Pressure ..................................49
C. Gas Connection ................................51
D. High Altitude Installations .........................51
E. Air Shutter Setting ..............................51
10 Finishing
A. Facing Materials ................................52
B. Non-Combustible Board and Drywall Installation .......53
C. Mantel and Wall Projections .......................55
D. Decorative Front Finishing ........................57
11 Appliance Setup
A. Remove Fixed Glass Assembly ....................60
B. Remove the Shipping Materials ....................60
C. Clean the Appliance .............................60
D. Install the Glass Refractory (Optional) ..............60
E. Install LED Lights (Optional) ......................61
F. Install Media ..................................61
G. Install Stones (Optional) .........................61
H. Install Log Sets (Optional) . . . . . . . . . . . . . . . . . . . . . . . . 61
I. Install Fixed Glass Assembly ......................61
J. Install Decorative Front ..........................62
12 Reference Materials
A. Vent Components Diagrams ......................63
B. Accessories ...................................69
= Contains updated information.
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3Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Installation Standard Work Checklist
Customer: Lot/Address:
Model (circle one): COSMO42-IFT COSMO32-IFT
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 YES IF NO, WHY?
Verified that the chase is insulated and sealed. (Pg. 15) ___________________________
Required non-combustible board is installed. (Pg. 37) ___________________________
Verified clearances to combustibles. (Pg. 13-14) ___________________________
Fireplace is leveled and secured. (Pg. 36) ___________________________
Venting/Chimney Section 7 (Pg 38-43)
Venting configuration complies to vent diagrams. ___________________________
Venting installed, locked and secured in place with proper clearance. ___________________________
Firestops installed. ___________________________
Attic insulation shield installed. ___________________________
Exterior wall/Roof flashing installed and sealed. ___________________________
Terminations installed and sealed. ___________________________
Electrical Section 8 (Pg 44-48)Unswitched power (110-120 VAC) provided to the appliance. ___________________________Switch wires properly installed. ___________________________
Gas Section 9 (Pg 49-51)Proper appliance for fuel type. ___________________________Was a conversion performed? ___________________________Leak check performed and inlet pressure verified. ___________________________Verified proper air shutter setting for installation type. ___________________________
Finishing Section 10 (Pg 52-59)Combustible materials not installed in non-combustible areas. ___________________________Verified all clearances meet installation manual requirements. ___________________________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). ___________________________Media and optional logs, glass refractory and LED’s installed correctly. ___________________________Glass assembly installed and secured. ___________________________Accessories installed properly. ___________________________Mesh, doors, or 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 verified no gas leaks exist. ___________________________
2491-982 9/17 = Contains updated information.
Hearth & Home Technologies recommends the following:
• Photographing the installation and copying this checklist for your file.
• 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 could
lead to a fire or explosion.
ATTENTION INSTALLER:
Follow this Standard Work Checklist
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B. Glass Specifications
Hearth & Home Technologies appliances manufactured
with tempered glass may be installed in hazardous lo-cations such as bathtub enclosures as defined by the Consumer Product Safety Commission (CPSC). The tempered glass has been tested and certified to the re-quirements of ANSI Z97.1 and CPSC 16 CFR 1202 (Safety Glazing Certification Council SGCC# 1595 and 1597. Architectural Testing, Inc. Reports 02-31919.01 and 02-31917.01).
This statement is in compliance with CPSC 16 CFR Sec-
tion 1201.5 “Certification and labeling requirements”
which refers to 15 U.S. Code (USC) 2063 stating “…Such
certificate shall accompany the product or shall otherwise
be furnished to any distributor or retailer to whom the
product is delivered.”
Some local building codes require the use of tempered glass with permanent marking in such locations. Glass meeting this requirement is available from the factory. Please contact your dealer or distributor to order.
C. BTU Specifications
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
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: COSMO42-IFT, COSMO32-IFT
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Heater
STANDARD: ANSI Z21.88-2014 • CSA 2.33-2014
Models(U.S. or Canada)
MaximumInput BTU/h MinimumInput BTU/h
OrificeSize (DMS)
COSMO42-IFT
(NG)(0-2000 FT)25,250 17,500 #42
COSMO42-IFT (PROPANE)(0-2000 FT 23,500 17,500 .057
COSMO32-IFT
(NG)(0-2000 FT)19,000 13,250 #45
COSMO32-IFT
(PROPANE)(0-2000 FT)16,500 12,750 1.25
mm
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5Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
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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7Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
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 requirements.
• Provisions for optional heat management system.
• Electrical wiring requirements.
• Framing and finishing details.
• Whether optional accessories—devices such as a fan,
wall switch, LED lighting or remote control—are desired.
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 Hammer
Phillips screwdriver Manometer
Gloves Framing square
Voltmeter Flat blade screwdriver
Plumb line Safety glasses
Level Reciprocating saw
Electric drill and bits: (1/4 in./Phillips #2)
Non-corrosive leak check solution
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws
Caulking material (300 ºF minimum continuous exposure
rating)
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
B. Good Faith Wall Surface
MEASUREMENTS FROMTOP EDGE OF THE OPENING
6 in.
18 in.
24 in.
30 in.
36 in.
48 in.
TO CEILING
42 in.
12 in.194°F
APPLIANCE FRONT
FIREPLACE OPENING
142°F
119°F
110°F
105°F
101°F
98°F
95°F
Installation and service of this appliance should be performed by
qualified personnel. Hearth & Home Technologies recommends
HHT Factory Trained or NFI certified professionals.
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. Use appropriate finishing
materials that are able to withstand these conditions. For
additional finishing guidelines, see Section 10.
If installing a television (TV) above the appliance, see
Section 3 of the appliance Owner’s Manual.
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D. Inspect Appliance and Components
• Carefully remove the appliance and components from
the packaging.
• The vent system components and decorative fronts may
be shipped in separate packages.
• If packaged separately, the log set and appliance grate
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.
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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9Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
3 Framing and Clearances
Appliance Dimensions Table
A. Appliance/Decorative Front Dimension Diagrams
Dimensions are actual appliance dimensions. Use for reference only. For framing dimensions and clearances refer to Section 5.
Figure 3.1 Appliance Dimensions - COSMO32-IFT
O
Q
P
F
G
H
T
C
X
B
A
E
S
UØ
V
W
TOP VIEW
LEFT VIEW FRONT VIEW RIGHT VIEW
ELECTRICALACCESS
GAS LINE ACCESS
D
MR
L
N Ø
J
K
I
HEAT MANAGEMENT SYSTEMS ACCESS (BOTH SIDES)
Location Inches Millimeters
M 16-3/4 425
N 6-5/8 168
O 34-3/8 873
P 2-3/16 56
Q 6 152
R 17-1/4 438
S 25-7/8 657
T 38-1/2 978
U 5 127
V 14 356
W 10-5/8 270
X 7-3/4 197
Location Inches Millimeters
A 36 914
B 31 787
C 27-1/4 692
D 15-1/4 387
E 38-1/16 967
F 3-1/2 89
G 7 178
H 41 1041
I 9-13/16 249
J 17-3/4 451
K 1/2 13
L 25-3/4 654
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Figure 3.2 Appliance Dimensions - COSMO42-IFT
Location Inches Millimeters
M 16-3/4 425
N 6-5/8 168
O 32-3/8 822
P 2-3/16 56
Q 6 152
R 17-1/4 438
S 25-7/8 657
T 50-1/2 1283
U 5 127
V 14 356
W 10-5/8 270
X 7-3/4 197
Location Inches Millimeters
A 48 1219
B 43 1092
C 39-1/16 993
D 15-1/4 387
E 33-11/16 856
F 3-1/2 89
G 7 178
H 47-1/16 1195
I 9-13/16 249
J 17-3/4 451
K 1/2 13
L 37-3/4 959
Appliance Dimensions Table
O
GAS LINE
ACCESS
ELECTRICAL
ACCESS
Q
LEFT VIEW
P
C
S
FRONT VIEW
A
B
T
D
E
G
RIGHT VIEW
F
H
I
J
K
NØ
MR
L
UØ
V
W
TOP VIEW
X
HEAT MANAGEMENT SYSTEMS ACCESS (BOTH SIDES)
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11Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
CFT DECORATIVE FRONTS
A B C D E F G
COSMO32-IFT CFT-32 in.28-3/16 14-1/8 33-1/8 6-7/8 9-13/16 19-7/8 26-7/8
mm 716 359 841 175 249 505 683
COSMO42-IFT CFT-42 in.40-3/16 14-1/8 45-1/8 6-7/8 9-13/16 19-7/8 26-7/8
mm 1021 359 1146 175 249 505 683
D
G
E
C
B
A
F
Dimensions are actual decorative front dimensions. Use for reference only.
Figure 3.3 Decorative Front Dimensions - CFT 08/28/2018
Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1812
G
E
D
C
F
A
B
A B C D E F G
COSMO32-IFT MAR-COSMO32 in.28-1/4 14-7/8 34-3/16 6-5/16 9-3/8 20-3/4 27-1/8
mm 718 377 867 160 239 527 689
COSMO42-IFT MAR-COSMO42 in.40-1/4 14-7/8 46-3/16 6-5/16 9-5/16 20-3/4 27-1/16
mm 1023 377 1172 160 237 527 688
MARTINI DECORATIVE FRONTS
Figure 3.4 Decorative Front Dimensions - MARTINI 08/28/2018
13Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
B. Clearances to Combustibles
When selecting a location for the appliance it is important
to consider the required clearances to walls (see Figure
3.5).
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 may vary due to
individual design preference.
Figure 3.5 Appliance Locations
1/2 IN.
A
E
A
C TOP VENTONE 900 ELBOW
ALCOVEINSTALLATION
D*
TOP VENTONE 90° ELBOW
B
F
Refer to Section 10.C for mantel and wall
projection information.
Consider the mantel or cabinet system to be installed and comply with the necessary requirements for elevated hearth. Refer to
instructions included with cabinet system.
A B C D E F
COSMO32-IFT Inches 44-5/8 37-5/8 63-1/8
See Section 10.C for Alcove Installation.
15-1/16 17-1/4
Millimeters 1134 956 1603 383 438
COSMO42-IFT Inches 50-1/2 49 71-1/2 19-1/2 17-1/4
Millimeters 1283 1245 1816 495 438
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1814
* Adjust framing dimensions for interior sheathing (such as sheetrock)
A
B
C
D
HEADER: TWO 2 X 4’S OR 2 X 6’S
INSTALLED ON END
KING STUD
JACK (TRIMMER) STUD
MINIMUM FRAMING DIMENSIONS*
Models
A B C D E F G H I J
RoughOpening
(Vent Pipe)
RoughOpening
(Height)
RoughOpening
(Depth)
RoughOpening
(Width)
Clearanceto Ceiling CombustibleFloor CombustibleFlooring BehindAppliance Sides ofAppliance Front ofAppliance
COSMO32-IFT in.8-5/8 36-1/2 17-3/4 37 31 0 0 1/2 1/2 36
mm 219 927 451 940 787 0 0 13 13 914
COSMO42-IFT in.8-5/8 32-3/4 17-3/4 49 31 0 0 1/2 1/2 36
mm 219 832 451 1245 787 0 0 13 13 914
Figure 3.6 Clearances to Combustibles
F
J
G
I
H
E
MEASURE FROM TOP OF APPLIANCE OPENING
Framing
This appliance is designed to be recessed into combus-
tible framing with non-combustible material pre-installed
on top and side. Drywall or combustible materials (mini-
mum 1/2 inch thick) are designed to contact the non-
combustible material/appliance as called out in Section
10 Finishing.
This appliance has been thoroughly tested to minimize
drywall cracking and/or the protrusion of screws “screw
pops" when framed as shown below.
Framing should be done in a manner similar to framing a
window or door: Double-2x4/2x6 as a header for horizon-
tal strength and utilizing Jack or Trimmer stud fastened to
the King studs for vertical strength.
If elevating the appliance, the base of the unit should also
be constructed in a similar manner to prevent settling.
Note: Refer to Section 10 for important information
related to facing, drywall specifications and decorative
front information.
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15Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
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 and insulated in the same
manner as the thermal envelope of the home based on
the code requirements for that climate zone to prevent air
leakage and draft problems. The chase is an extension of
the building thermal envelope.
To further prevent drafts and air leakage, the wall shield
and ceiling firestops 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 continu-
ous 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.
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 may cause overheating and
a fire.
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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 ROOFTO 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 OilTermination Cap
B
GasTermination
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.
08/28/2018
17Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Figure 4.3 Minimum Clearances for Termination
O N
P
R
Q
X = AIR SUPPLY INLET
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
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.
B. Chimney Diagram
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.
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.
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 protection kits are suggested for use with vinyl siding.
A = 12 inches.................clearances above grade, veranda, porch, deck or balcony
B = 9 inches (U.S.A.)
12 inches (Canada). 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
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 = 12 inches.................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 inletAll 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.
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C. Approved Pipe
Approved Pipe - Rigid
This appliance is approved for use with Hearth & Home
Technologies SLP 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.
Approved Pipe - Flex
This appliance is approved for use with Hearth & Home
Technologies SLP-FLEX (6-5/8 inch) and SLP-FLEX7 (7
inch) venting systems.
DO NOT mix pipe, fittings or joining methods from
different manufacturers. SLP-FLEX and SLP-FLEX7
venting cannot be interchanged.
SLP-FLEX (6-5/8 Inch): Venting may be used in any
venting configuration shown in the venting tables pro-
vided that the horizontal vent length is reduced by 25%.
SLP-FLEX7 (7 Inch-Canada Only): Venting requires
adapter collars to transition from the 6-5/8 IN. appliance
starting collar and to the 6-5/8 IN. termination cap. Refer
to installation instructions included with the SLP-FLEX7
collar adapter (SLP-FLEX7-AM/SLP-FLEX7-A). SLP-
FLEX7 Series venting is approved for use in Canada only.
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.
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19Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
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 4.5 shows the vertical and horizontal offsets for
SLP elbows.
Figure 4.4
HORIZONTAL
VERTICAL
RUN
RI
S
E
EFF
E
C
T
I
V
E
LEN
G
T
H
Y
X
X
X
Vent Type X
Inches Millimeters
SLP 11-1/4 286
Figure 4.5 Vertical and Horizontal Offset for SLP Elbows
Vent Type X Y
Inches Millimeters Inches Millimeters
SLP 5 127 11-3/4 298
SLP Pipe
Effective Length Rise/Run
Inches Millimeters Inches Millimeters
SLP4 4 102 2-3/4 70
SLP6 6 152 4-1/4 108
SLP12 12 305 8-1/2 216
SLP24 24 610 17 432
SLP36 36 914 25-1/2 648
SLP48 48 1219 34 864
SLP6A 3 to 6 76 to 152 2-1/8-4-1/4 54-108
SLP12A 3 to 12 76 to 305 2-1/8-8-1/2 54-216
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1820
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 (Figure 12.1) for information
on effective length of pipe components.
• Horizontal terminations are measured to the outside
mounting surface (flange of termination cap). See
Figure 4.6.
• Vertical terminations are measured to top of last section
of pipe. See Figure 4.7.
• Horizontal pipe installed level with no rise.
MEASURE TO SHADED SURFACE (OUTSIDE MOUNTING SURFACE)
Figure 4.6 Measure to Outside Mounting Surface
Figure 4.7 Measure to Top of Last Section of Pipe
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21Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
G. Vent Diagrams
Figure 4.9 Vent Cap
F. Use of Flex Vent (SLP-FLEX Series 6-5/8
Inch)
The flex vent must be supported with the spacing between
support intervals not exceeding 4 feet, with no more than
1/2 inch sag between supports.
A support is required at each change in venting direction,
and in any location where it is necessary to maintain the
necessary clearance to combustibles. A simple “up and
out” installation (Figure 4.8) requires only enough support
to maintain the necessary clearance to combustibles.
However, the vent attachment point and the firestop loca-
tion are considered to be supports.
Figure 4.8 Flex Vent Pipe - Generic Fireplace Shown
3 in. CLEARANCE
TERMINATIONCAP
FLEX-VENT
1 in.CLEARANCE
General Rules:
• Elbows may be placed back to back anywhere in the
system.
• Any 90º elbow may be replaced with two back to back
45º elbows.
• 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. See Figure 4.9.
1/4 in. max.
(6 mm)
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1822
Top Vent - Horizontal Termination
Figure 4.10
Note: Use SLP Series
components only.
Note: There MUST be a 25% reduction
in total H when using SLP-FLEX Series
(6-5/8 inch) vent except when using the simple up and out installation. See
Figure 4.8.
One 90º Elbow
Risk of Fire!
When using SLP-TB1 termination cap on
top vented fireplaces, a three foot minimum
vertical vent section is required before installing first elbow.
H1
V1
WARNING *
V Minimum*H1 Maximum
COSMO42-IFT COSMO32-IFT
90° Elbow Not Allowed 1 ft.305 mm
1 ft.305 mm 1 ft.305 mm 2 ft.610 mm
2 ft.610 mm 3 ft.914 mm 4 ft.1.2 m
3 ft.914 mm 5 ft.1.5 m 6 ft.1.8 m
4 ft.1.2 m 7 ft.2.1 m 15 ft.4.6 m
5 ft.1.5 14 ft.4.3 m
H MAX. =14 ft. (4.3 m)V + H MAX. = 40 ft. (12.2 m)H MAX. =15 ft. (4.6 m)V + H MAX. = 40 ft. (12.2 m)
CAUTION: The SLP-HRC-SS termination caps are
not approved for use with these models. May lead to
elevated glass temperature that may cause tempered
glass breakage.
08/28/2018
23Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Top Vent - Horizontal Termination - (continued)
Two Elbows
Figure 4.11
Note: Use SLP Series
components only.
INSTALLEDHORIZONTALLY
H1
H2
V1
WARNING *
V Minimum*H1 + H2 Maximum
COSMO42-IFT COSMO32-IFT
90° Elbow Not Allowed 1 ft.305 mm
1 ft.305 mm 1 ft.305 mm 2 ft.610 mm
2 ft.610 mm 2 ft.610 mm 4 ft.1.2 m
3 ft.914 mm 4 ft.1.2 m 6 ft.1.8 m
4 ft.1.2 m 6 ft.1.8 m 15 ft.4.6 m
5 ft.1.5 15 ft.4.6 m
H1 + H2 MAX. =15 ft. (4.6 m)
V1 + H1 + H2 MAX. = 40 ft. (12.2 m)
CAUTION: The SLP-HRC-SS termination caps are not approved for use with these models. May lead to elevated glass temperature that may cause tempered glass breakage.
Note: There MUST be a 25% reduction
in total H when using SLP-FLEX Series
(6-5/8 inch) vent except when using the simple up and out installation. See
Figure 4.8.
Risk of Fire!
When using SLP-TB1 termination cap on
top vented fireplaces, a three foot minimum
vertical vent section is required before
installing first elbow.
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1824
H2
H1
V2
V1
Figure 4.12
Top Vent - Horizontal Termination - (continued)
Three Elbows COSMO32-IFT
V1 Minimum H1 + H2 Maximum V2 V1 + V2 Minimum
90° Elbow 6 ft.1.8 m **
1 ft.305 mm 10 ft.3.0 m **
2 ft.610 mm 12 ft.3.7 m **
3 ft.914 mm 14 ft.4.3 m **
H1 + H2 MAX. =14 ft. (4.3 m)
V1 + V2 + H1 + H2 MAX. = 40 ft. (12.2 m)*No specific restrictions on this value EXCEPT V1 + V2 + H1 + H2 cannot exceed 40 ft. (12.2 m)
CAUTION: The SLP-HRC-SS termination caps are
not approved for use with these models. May lead to
elevated glass temperature that may cause tempered
glass breakage.
COSMO42-IFT
V1 Minimum H1 + H2 Maximum V2 V1 + V2 Minimum
1 ft.305 mm 6 ft.1.8 m **
2 ft.610 mm 10 ft.3.0 m **
3 ft.914 mm 12 ft.3.7 m **
4 ft.1.2 m 14 ft.4.3 m **
H1 + H2 MAX. =14 ft. (4.3 m)
V1 + V2 + H1 + H2 MAX. = 40 ft. (12.2 m)*No specific restrictions on this value EXCEPT V1 + V2 + H1 + H2 cannot exceed 40 ft. (12.2 m)
Note: There MUST be a 25% reduction
in total H when using SLP-FLEX Series
(6-5/8 inch) vent except when using the simple up and out installation. See
Figure 4.8.
08/28/2018
25Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Note: Use SLP Series components only.
V1
H1 H3
H2
INSTALLEDHORIZONTALLY
INSTALLED
HORIZONTALLY
V Minimum H1 + H2 + H3 MAXIMUM
COSMO42-IFT (NG ONLY)
4 ft.1.2 m 15 ft.4.6 m
H1 + H2 + H3 MAX. = 15 ft. (4.6 m)V1 MAX. = 7 ft (2.1 m)
Top Vent - Horizontal Termination - (continued)
Risk of Fire!
This vent configuration can ONLY be used for
COSMO42-IFT Natural Gas appliances.
WARNING
CAUTION: The SLP-HRC-SS termination caps are
not approved for use with these models. May lead to
elevated glass temperature that may cause tempered
glass breakage.
Figure 4.13
Three Elbows
Note: There MUST be a 25% reduction
in total H when using SLP-FLEX Series
(6-5/8 inch) vent except when using
the simple up and out installation. See Figure 4.8.
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1826
Top Vent - Vertical Termination
No Elbow
Figure 4.14
V1 = 60 ft. Max. (18.3 m)
Note: Use SLP Series components only.
Note: If installing a vertical vent/termination off the top of
the appliance, the optional vertical termination baffle may
be needed.
V1
08/28/2018
27Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Figure 4.15 Installing Restrictor
Exhaust Restrictor Instructions
Exhaust restrictors are recommended for these verti-
cally terminated products which have excessive draft.
Exhaust restrictors will compensate for high draft, and
restore visual flame height. If the vent configuration has
a total vertical of 15-60 feet, an exhaust restrictor may
be needed. The exhaust restrictor can be located in the
appliance manual bag.
Exhaust Restrictor Installation
1. COSMO42-IFT Only: Remove inner heat shield by
removing two wing nuts from top front of heat shield
and two screws that secure the heat shield to back
wall of fireplace. Retain heat shield and fasteners.
2. COSMO32-IFT/COSMO42-IFT: Center the exhaust
restrictor in the open end of the exhaust outlet and
secure through the slots on the exhaust restrictor
with the two 1/4 in. self-tapping screws provided in
the appliance manual bag. See Figure 4.15.
3. COSMO42-IFT Only: Reinstall shield by securing it
with the two wing nuts and two screws previously re-
moved in Step 1.
SCREWS
WING NUTS
HEAT SHIELD
EXHAUST RESTRICTOR
INSTALLED SCREWS
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1828
Figure 4.16
Two 90º Elbows
Note: Use SLP Series
components only.
Top Vent - Vertical Termination - (continued)
H1
V1
V2
COSMO32-IFT
V1 Minimum H Maximum V2 V1 + V2 Minimum
90° Elbow 2 ft.610 mm **
1 ft.305 mm 3 ft.914 mm **
2 ft.610 mm 5 ft.1.5 m **
3 ft.914 mm 7 ft.2.1 m **
4 ft.1.2 m 15 ft.4.6 m **
H MAX. =15 ft. (4.6 m)
V1 + V2 + H MAX. = 40 ft. (12.2 m)
* No specific restrictions on this value EXCEPT V1 + V2 + H cannot exceed 40 ft. (12.2 m)
COSMO42-IFT
V1 Minimum H Maximum V2 V1 + V2 Minimum
1 ft.305 mm 2 ft.610 mm **
2 ft.610 mm 3 ft.914 mm **
3 ft.914 mm 5 ft.1.5 m **
4 ft.1.2 m 7 ft.2.1 m **
5 ft.1.5 m 15 ft.4.6 m **
H MAX. =15 ft. (4.6 m)
V1 + V2 + H MAX. = 40 ft. (12.2 m)
* No specific restrictions on this value EXCEPT V1 + V2 + H cannot exceed 40 ft. (12.2 m)
Note: There MUST be a 25% reduction
in total H when using SLP-FLEX Series
(6-5/8 inch) vent except when using
the simple up and out installation. See Figure 4.8.
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29Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Figure 4.17
Three 90º Elbows
Top Vent - Vertical Termination - (continued)
INSTALLEDHORIZONTALLY
H1
H2 V1
V2
Note: Use SLP Series
components only.
COSMO32-IFT
V1 Minimum H1 + H2 Maximum V2 V1 + V2 Minimum
90° Elbow 1 ft.305 mm **
1 ft.305 mm 2 ft.610 mm **
2 ft.610 mm 4 ft.1.2 m **
3 ft.914 mm 6 ft.1.8 m **
4 ft.1.2 m 14 ft.4.3 m **
H MAX. =14 ft. (4.3 m)
V1 + V2 + H1 + H2 MAX. = 40 ft. (12.2 m)
* No specific restrictions on this value EXCEPT V1 + V2 + H1 + H2 cannot exceed 40 ft. (12.2 m)
COSMO42-IFT
V1 Minimum H1 + H2 Maximum V2 V1 + V2 Minimum
1 ft.305 mm 1 ft.305 mm **
2 ft.610 mm 2 ft.610 mm **
3 ft.914 mm 4 ft.1.2 m **
4 ft.1.2 m 6 ft.1.8 m **
5 ft.1.5 m 14 ft.4.3 m **
H MAX. =14 ft. (4.3 m)
V1 + V2 + H1 + H2 MAX. = 40 ft. (12.2 m)
* No specific restrictions on this value EXCEPT V1 + V2 + H1 + H2 cannot exceed 40 ft. (12.2 m)
Note: There MUST be a 25% reduction
in total H when using SLP-FLEX Series
(6-5/8 inch) vent except when using the simple up and out installation. See
Figure 4.8.
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1830
Note: Use SLP Series components only.
COSMO42-IFT & COSMO32-IFT
V1 MIN.H1 MAX.V2 MIN.H2 MAX.V3 MIN.
2-1/2 ft.762 mm 4 ft.1.2 m 4 ft.1.2 m 4 ft.1.2 m 3-1/2 ft.1.0 m
V1 + V2 + V3 + H1 + H2 Maximum= 40 ft. (12.2 m)
V1
H1
V2
V3
H2
Figure 4.18
Four 90º Elbows
Top Vent - Vertical Termination - (continued)
Note: There MUST be a 25% reduction
in total H when using SLP-FLEX Series
(6-5/8 inch) vent except when using
the simple up and out installation. See Figure 4.8.
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31Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
EXHAUST VENT PIPEINLET AIR VENT PIPE
OUTSIDE FACE OF FIREPLACE
TOP OF FIREPLACE OPENING
SHADED AREA DEFINED AS“INSIDE EXISTING MASONRY FIREPLACE”
3 IN. (76 mm) MIN.
5 IN. (127 mm) MIN.
EXHAUST VENT PIPE
Figure 4.20 Existing Fireplace DV-46DVA-GCL Clearance Requirements
Clearances to Combustibles:
Refer to Section 3 for clearances to the appliance and
Section 10 for mantel, mantel legs and wall projection
information.
Refer to Section 5 for pipe clearances to combustibles.
Termination Cap
For installation of termination cap see minimum vent
heights for various pitched roofs. See Section 4.A.
Flue Damper
Fully lock the solid fuel fireplace’s flue damper in the open
position, OR completely remove it.
Venting Components
The LINK-DV30B is approved for use with the coaxial/co-
linear venting application. The LINK-DV30B kit includes:
• Two 30 foot sections of flexible vent pipe (3 inches Ø).
One section is used to draw combustion air and the other
section is used to expel exhaust gases.
• One vertical termination cap.
WARNING! Risk of Fire! Coaxial to colinear venting con-
figuration may only be used in existing non-combustible
chimney. Installation in any other venting application
could cause fire.
Prior to installing the gas appliance:
• Have the chimney and adjacent structure inspected
and cleaned by qualified professionals. Hearth & Home
Technologies recommends that NFI or CSIA certified
professionals, or technicians under the direction of certi-
fied professionals, conduct a minimum of a NFPA 211
Level 2 inspection of the chimney.
• Replace component parts of the chimney and fireplace
as specified by the professionals.
• Ensure all joints are properly engaged and the chimney
is properly secured.
Stainless Steel Flex Requirement - COSMO32-IFT ONLY:
The COSMO32-IFT model requires the use of a 3 ft. stain-
less steel flex liner (768-380A) to be installed directly to the
exhaust collar on the DV-46DVA-GCL connector.
Coaxial to Colinear Venting
The coaxial to colinear adapter (DV-46DVA-GCL) is ap-
proved for installations into solid fuel masonry or factory
built fireplaces that have been installed in accordance
with the National, Provincial, State and local building
codes. The DV-46DVA-GCL must be recessed into exist-
ing masonry fireplace. See Table 1 and Figure 4.20.
Table 1
CAUTION! DO NOT use any flue restrictor when vent-
ing with the DV-46DVA-GCL adapter and LINK-DV30B
kit. This could result in poor flame appearance, sooting,
pilot malfunction, or overheating.
Figure 4.19 Coaxial/Colinear Appliance Adapter (DV-46DVA-GCL)
CLEARANCE TO COMBUSTIBLES REQUIREMENTS
DV-46DVA-GCL 3 in. (76 mm)
Exhaust Vent Pipe 5 in (127 mm)
WARNING! Risk of Fire! Risk of Asphyxiation! Failure
to install the stainless steel flex could cause excessive flex
vent temperatures.
• Aluminum material degradation could cause flex vent
system to fail.
• Installer MUST install the 3 ft. stainless steel flex on
COSMO32-IFT.
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1832
Figure 4.21
Connecting the DV-46DVA-GCL Adapter to Appliance
Top Vent
• Remove top seal cap and insulation if equipped.
See Section 6, “Appliance Preparation.” Attach the
DV-46DVA-GCL adapter to the appliance starting collar
with 3-1/2 in. self-tapping screws. See Figure 4.21.
Connecting the LINK-DV30B to the DV-46DVA-GCL
adapter
• Insert the two sections of flexible vent pipe down the
existing chimney.
• Attach one section of flexible vent pipe to the exhaust
collar on top of the DV-46DVA-GCL adapter with three
self-tapping screws.
• Attach one section of flexible vent pipe to the inlet collar
on top of the DV-46DVA-GCL adapter with three self-
tapping screws.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Do NOT connect this gas appliance to a chimney flue
serving a separate solid fuel or gas burning appliance.
• May impair safe operation of this appliance or other
appliances connected to the flue.
• Vent this appliance directly outside.
• Use separate vent system for this appliance.
• To minimize cold air drafts, seal around the flex vents
at the damper inside the chimney with non-combustible
unfaced fiberglass or rock wool insulation.
The DV-46DVA-GCL adapter must be recessed into existing
masonry fireplace. This measurement is taken from the top
of the fireplace opening. See Table 1 and Figure 4.20.
EXISTING CHIMNEY
HEARTHFLOOR
EXISTING CHIMNEY
EXHAUST AIR
VENT PIPE INLET AIR VENT PIPE
To minimize cold air
drafts, seal with non-combustible
insulation.
TERMINATION CAP
DIRECT VENT FIREPLACE
V
TOP VENT
NOTICE: To achieve optimum per-
formance of appliance, minimize or
avoid bends in exhaust vent pipe.
V
Minimum 10 ft.3.05 m
Maximum 40 ft.12.2 m
CAUTION! DO NOT use any flue restric-tor when venting with the DV-46DVA-GCL adapter and LINK-DV30B kit. This may re-
sult in poor flame appearance, sooting, pilot
malfunction, or overheating.
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33Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
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
Figure 5.2 Wall Penetration
* Shows center of vent framing hole for top or rear venting. The center of the hole is 1 in. (25 mm) above the center of the horizontal vent pipe.
Figure 5.1 Horizontal Venting Clearances To Combustible
Materials
* When using SLP pipe, minimum clearances from the vent pipe to combustible materi-als at inside wall firestops are: Top: 2-1/2 in. (64 mm) Bottom: 1/2 in. (13 mm) Sides: 1 in. (25 mm)
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm). • 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.
• SLP heat shield - designed to be used on a wall 4-3/8 in. to 7-5/8 in. (111 mm to 194 mm thick).
• If wall thickness is less than 4-3/8 the existing heat shields must be field trimmed. If wall thickness is greater than 7-5/8 in. a DVP-HSM-B will be required.
(SLP Pipe Shown)
3 in. (76 mm)top clearance *
1 in. (25 mm)clearance
bottom & sides
HeatShield
WallShieldFirestop
HeatShield
WALL
3 in. (76 mm)top clearance
1 in. (25 mm)clearance aroundvertical sections
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.
• SLP 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 maintained.
• 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.
Whenever a non-combustible wall is penetrated, the wall
shield firestop is only required on one side and no heat
shield is necessary.
A* B
COSMO32-IFT 42 in. 41 in.
1067 mm 1041 mm
COSMO42-IFT 48-1/16 47-1/16
1221 1195
A
10 in.10 in.
B
DO NOT PACK WITH INSULATION OR
OTHER MATERIAL
COSMO32-IFT Shown
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1834
C. Ceiling Firestop/Floor Penetra-
tion Framing
A ceiling firestop MUST be used between
floors and attics.
• SLP pipe only - Frame opening 9 in. x 9
in. (229 mm x 229 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 in place with nails or screws.
WARNING! Risk of Fire! DO NOT pack insu-
lation around the vent. Insulation must be kept
back from the pipe to prevent overheating.
Figure 5.3 Installing Ceiling Firestop
Figure 5.4 Installing the Attic Shield
INSTALL ATTIC INSULATION SHIELDSBEFORE OR AFTER INSTALLATION OF VENT SYSTEM
CEILING FIRESTOPINSTALLED BELOW CEILING CEILING FIRESTOPINSTALLED ABOVE CEILING
ATTIC ABOVE
A
PIPE
SLP
A
9 in. (229 mm)
A
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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35Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
CAUTION! Risk of Cuts, Abrasions or Flying Debris.
Wear protective gloves and safety glasses during instal-
lation. Sheet metal edges are sharp.
NOTICE: Once appliance is set up for top or rear venting,
it CANNOT be changed at a later time.
A. Vent Collar Preparation
6 Appliance Preparation
WARNING! Risk of Fire! Do not remove heat shield. El-
evated header temperatures may cause a fire.
COSMO42-IFT
1. Remove two screws and discard. See Figure 6.1.
2. Fold up top heat shield to 90 degrees as shown in
Figure 6.2.
REMOVE SCREWS
Figure 6.1 COSMO42-IFT - Shipping Position
Figure 6.2 COSMO42-IFT - Top Heat Shield in Position
Figure 6.3 COSMO32-IFT - Shipping Support in Shipping Position
Figure 6.4 COSMO32-IFT - Shipping Support and Seal Cap
Removed
COSMO32-IFT
1. Remove two screws and remove shipping support.
See Figure 6.3.
2. Remove and discard shipping support, seal cap, and
screws. See Figure 6.4.
REMOVE 2 SCREWS
HEAT MANAGEMENT KNOCKOUT LOCATIONS
(RIGHT & LEFT SIDES)
TOP HEAT SHIELD
IN POSITION
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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.
The diagram shows how to properly position and secure
the appliance. See Figure 6.5. Nailing tabs are provided
to secure the appliance to the framing members.
• Bend out nailing tabs on each side.
• Place the appliance into position.
• Keep nailing tabs flush with the framing.
• 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.
• Optional: Secure the appliance to the floor by inserting
two screws through the pilot holes at the bottom of the
appliance.
Figure 6.5 Proper Positioning, Leveling And Securing Of
Appliance
B. Installing Optional Heat Management
Systems
NOTICE: Additional clearances are required for heat
management systems installations. Provisions must be
made in advance to ensure fit within the framing.
• Locate the heat management ports on the left and right
sides of the appliance. Either one or two Heat-Zone®
-Gas Kits may be installed. See Figure 6.2. 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. Note: Do this
BEFORE final positioning of the appliance.
• Determine the location for the air register/fan housing
assembly.
Reference the Heat-Zone®-Gas Kit, Smart-Wall™ TV Kit,
Heat-Duct Kit or Heat-Out-Gas Kit instructions for the
remaining installation steps.
Smart-Wall™ TV Kit
When a Smart-Wall™ TV Kit is installed, only one Heat-
Zone® -Gas kit or one Heat-Out-Gas kit may be installed.
The Smart-Wall™ TV Kit can not be used with a power
vent option or optional fan.
The COSMO42-IFT and COSMO32-IFT models ship with
factory-installed non-combustible board. This board must
be used. Do NOT remove. See Figure 6.5.
NAILING TABSBOTH SIDES
FACTORY-INSTALLED NON-COMBUSTIBLE BOARDDO NOT REMOVE
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37Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
WARNING! Risk of Fire! DO NOT remove factory-
installed non-combustible material.
D. Non-Combustible Material Installation
Figure 6.7 Installation of the Side Non-Combustible Components
INSTALL TWO OF THE PROVIDED SCREWS INTO THESE PILOT HOLES
INSTALL FOUROF THE PROVIDED SCREWS INTO
THESE PILOT HOLES
NOTE: BOTH LEFT & RIGHT SIDES
Figure 6.6 Shipping Position - Non-Combustible Sides
SPLATTER GUARD
This model ships with the required top, left and right non-
combustible board. The top non-combustible board has
been pre-installed at the factory with three screws. The
left and right side non-combustible boards are shipped in
the cardboard splatter guard in front of the appliance. See
Figure 6.6.
1. Remove the left and right non-combustible components
from the shipping position and set aside.
2. Remove the lower cover panel by removing two screws
located on the lower left and right sides of the appliance
opening. Retain screws. Lift the lower cover panel “up”
and “out” to remove.
3. Locate the manual bag assembly and remove the small
package containing the 1-1/2 inch Phillips screws.
Note: Care should be taken when installing screws into
the non-combustible board. DO NOT overtighten screws.
Screws should be set “flush” to the surface of the non-
combustible board.
4. Further secure the top non-combustible board by
installing screws into the pilot holes located in the upper
left and right corners of the top non-combustible board
as shown in Figure 6.7.
5. Install the left and right non-combustible components
with four of the provided Phillips screws. See Figure
6.7.
6. Install drywall screws (not provided) around the
perimeter of the installed non-combustible components
to secure it to the framing material. Refer to Section
10 for more information.
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7 Venting and Chimneys
Figure 7.1 High Temperature Silicone Sealant
A . Assemble Vent Sections
(SLP Only)
To attach the first vent component to the starting collars
of the appliance:
• Lock the vent components into place by sliding the pipe
section onto the collar.
• Align the seam of the pipe and seam of collar to allow
engagement. Rotate the vent component to lock into
place. Use this procedure for all vent components. See
Figure 7.2.
• Slide the gasket over the first vent section and place it
flush to the appliance. This will prevent cold air infiltration.
Caulk with a minimum of 300 ºF continuous exposure
rating may be used to hold the part in place.
• Continue adding vent components, locking each
succeeding component into place.
• Ensure that each succeeding vent component is securely
fitted and locked into the preceding component.
Required Commercial, Multi-family (Multi-level exceeding
two stories), or High-Rise Applications
All outer pipe joints must be sealed with high temperature
silicone (300 ºF minimum continuous exposure rating), in-
cluding the slip section that connects directly to the hori-
zontal termination cap.
• Apply a bead of silicone sealant (300 ºF minimum con-
tinuous exposure rating) to the outside of connecting
joint after joining sections. See Figure 7.1. 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.
Figure 7.2 Adding Venting Components
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.
Note: Align seams to engage pipe,
then rotate counterclockwise to lock
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39Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
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 7.3.
• Slide together to the desired length.
Figure 7.3 Slip Section Pilot Holes
Figure 7.4 Screws into Slip Section
Pilot hole
• 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.
• 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 7.4.
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1840
120º
Figure 7.5 Securing Vertical Pipe Sections
120º
Figure 7.6 Securing Horizontal Pipe Sections
D. Disassemble Vent Sections
• Rotate either section (see Figure 7.7) so the seams on
both pipe sections are aligned as shown in Figure 7.8.
• Pull carefully to separate the pieces of pipe.
Figure 7.8 Align and Disassemble Vent Sections
Figure 7.7 Rotate Seams for Disassembly
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 originating off the rear of the appliance, or
after any elbow, must be supported every 8 ft. (2.44 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 vent sections. See Figures 7.5
and 7.6.
• Wall shield firestops may be used to provide horizontal
support to vent sections.
• SLP 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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41Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
E. Vertical Termination Requirements
Install Metal Roof Flashing
• See minimum vent heights for various pitched roofs
(Figure 7.9) 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 7.10.
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
* H minimum may vary depending on
regional snowfall. Refer to local codes.
Figure 7.9 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 ROOFTO LOWEST DISCHARGE OPENING
Figure 7.11 insert 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 7.10.
• Caulk the overlap seam of any exposed pipe sections
that are located above the roof line.
CAULK
Figure 7.10
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.
• Slide the assembled storm collar down the pipe section
until it rests on the roof flashing. See Figure 7.11.
• Tighten nut and make sure the collar is tight against the
pipe section.
• Caulk around the top of the storm collar. See Figure 7.12.
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1842
Install Vertical Termination Cap
• Attach the vertical termination cap by sliding the inner
collar of the cap into the inner fl ue of the pipe section
while placing the outer collar of the cap over the outer
fl ue 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 fl ue of the pipe. See Figure 7.12.
Important Notice: Heat shields may not be fi eld constructed.
F. Horizontal Termination Requirements
Heat Shield Requirements for Horizontal
Termination
WARNING! Risk of Fire! To prevent overheating and fi re,
heat shields must extend through the entire wall thick-
ness.
• DO NOT remove the heat shields attached to the
wall shield fi restop and the horizontal termination cap
(shown in Figure 7.13).
• 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 fi restop. The other section is factory-attached to the cap. See Figure 7.13.
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 (DVP) or 4-3/8 in./ 111 mm (SLP), the heat shields on the cap and wall shield fi restop must be trimmed. A minimum 1-1/2 in. (38 mm) overlap MUST be maintained.
• Use an extended heat shield if the fi nished wall thickness
is greater than 7-1/4 in. (184 mm).
• The extended heat shield may need to be cut to length maintaining suffi cient 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.
Figure 7.12
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43Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Figure 7.13 Venting Through the Wall
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 4 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.
INTERIOR
HEAT SHIELD OREXTENDEDHEAT SHIELDWALL SHIELDFIRESTOP
HEAT SHIELD1-1/2 IN. (38 MM) MIN.OVERLAP
SHEATHING
SLIP SECTIONCAN BE EXTENDED
INNER VENT
OUTER VENT
EXTERIOR
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Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1844
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.
• In some instances, the spark ignition of the fireplace may cause intermittent, non-damaging, interference during the lighting sequence with a TV plugged into the same circuit. It is recommended that the fireplace and TV use different circuits to mitigate the interference potential. If interference is occurring on the same circuit, the use of surge protectors may help alleviate the interference.
8 Electrical Information
WH
T
WHT
BLK
BL
K
GRN wire
inside box
Copper
ground attached
to GRN screw withGRN wire
14/2WG
Cover Plateoutside firebox
Romex Connector
Figure 8.2 Junction Box Detail - COSMO42-IFT
Junction Box Installation
If the box is being wired from the INSIDE of the appliance:
COSMO42-IFT: The junction box is secured to a bracket.
Remove one screw. See Figure 8.2.
COSMO32-IFT: The junction box is secured to the fireplace
outer wrap. Remove one screw. See Figure 8.3.
• Pull the electrical wires from outside the appliance through
the opening into the valve compartment and secure wires
with a Romex connector. See Figure 8.4.
• Make all necessary wire connections to the junction box/
receptacle and reattach the junction box/receptacle to the
outer shell (COSMO32-IFT) or bracket (COSMO42-IFT).
Figure 8.3 Junction Box Detail - COSMO32-IFT
REMOVE ONE SCREW
REMOVE ONE SCREW
Figure 8.4. Junction Box Wiring (Generic Model Shown)
NOTICE: DO NOT wire
110-120 VAC to wall switch.
BRACKET
FIREBOX LEG
Valve/Control Access
The valve/control cavity is accessible by removing two
screws located in the lower right and left corners of the
fireplace opening. See Figure 8.1.
Once finishing material has been installed, access to the
valve/control cavity is limited to access through the fire-
box, see Section 9.B.
BOTTOM PANEL SCREW LOCATIONS
LO
W
E
R
A
C
C
E
S
S
P
A
N
E
L
NOTE: Appliance shownwithout glass installed.
Figure 8.1 Remove Lower Access Panel 08/28/2018
45Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
B. Wiring Requirements
Intellifire™ Touch Ignition System Wiring
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.
• 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 Figures 8.5, 8.6, and 8.7 wiring diagrams.
• This appliance is equipped with an IntelliFire™ Touch
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.
Electrical Service and Repair
WARNING! Risk of Shock! Label all wires prior to dis-
connection when servicing controls. Wiring errors could
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.
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.
08/28/2018
Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/1846
Figure 8.5 Intellifire™ Touch Wiring Diagram - Standard
6 VACTRANSFORMER2326-131
6V BATTERY PACK2326-134
OR
A
N
G
E
GR
E
E
N
GROUND TOFIREPLACECHASSIS
WHITE ORANGE
INTERMITTENT PILOT IGNITER (NG)2106-169
HO
T
NE
U
T
R
A
L
JUNCTION BOX110-120 VAC
I S
IFT CONTROL MODULE
2326-130
VALVE (NG)2166-302 BLK
BLACK
RED
GREEN
ORANGE
BRN
RED
RED
WHITE
WIRE ASSEMBLY2118-170
WIRE HARNESS2326-132
JUMPER2187-198
Note: Wire assembly (2118-170) is
shipped in the manual bag assembly.
Usage is optional.
Note: Battery Pack (2326-134) is attached
to the back side of the lower cover panel.
Connect battery pack to control system at
the time of installation.
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Figure 8.6 Intellifire™ Touch Wiring Diagram with Remote, Fan and LED Options
JUNCTION BOX 110-120 VAC
LEDCONTROL
RF MODULE2326-120
ORANGE(PILOT)RED
6V DC BATTERY PACK
2326-134
BLK
RED
JUMPER WIRE
APPLIANCE ON/OFF CONTROL BRN BLK
OPTIONS
FAN GFK-160A
IFT-RC150WIRELESSWALL SWITCH
IFT-RC400REMOTE
CONTROL
IFT-AUX
AC MODULE CABLE
2326-152
RF MODULE
2326-120
RF MODULE
2326-120
2326-150
LED’s
GREEN(MAIN)
WIRE HARNESS
NOT USED
6 VAC
TRANSFORMER
2326-131
HO
T
NE
U
T
R
A
L
INTERMITTENT
PILOT IGNITER (NG)
2106-169
IFT CONTROL MODULE
2326-130
IFT AUX
2326-150
AC MODULE CABLE2326-152
LED-LINEAR
Components shown in diagram.
FAN OUTLET
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Figure 8.7 Intellifire™ Touch Wiring Diagram with Power Vent Diagram
6 VACTRANSFORMER2326-131
OR
A
N
G
E
GR
E
E
N
GROUND TOFIREPLACECHASSIS
WHITE ORANGE
INTERMITTENT PILOT IGNITOR(2106-169)
HO
T
NE
U
T
R
A
L
JUNCTION BOX110-120 VAC
I S
IFT CONTROL MODULE2326-130
VALVE (NG)2166-302
BLK
GREEN
ORANGE
BRN
WIRE HARNESS2326-132
AC MODULE CABLE2326-152
RF MODULE2326-120
IFT AUX2326-150
IFT-RC400 REMOTE CONTROL2326-110
OPTIONAL FANGFK-160A
JUMPER2155-033
PVI-SLP-BPVLP-SLP
PVI-SLP-B OR PVLP-SLP
WIRE HARNESSPVI-WH10PVI-WH20PVI-WH40
PVI-WH60PVI-WH80PVI-WH100
RED
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9 Gas Information
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:
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.
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 REMOVE 2 SCREWS
Figure 9.1 Basepan Removal - COSMO42-IFT Shown
Access Through the Valve Assembly
(For Service/Conversion)
1. Locate and remove the two screws that secure the
basepan to the appliance. See Figure 9.1. Remove
basepan. Retain screws.
Access Through the Control Cavity
(For Service/Conversion)
The lower access cover panel is removable if finishing
material has not been previously installed. See Section
8.A for removal instructions.
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Figure 9.3 Remove Valve Plate
Figure 9.2 Burner Removal
Valve Pressure Taps
The pressure taps are accessible by removing the lower
panel prior to finishing material installation. There is
limited access to the pressure taps after finishing material
installation. Remove glass assembly and utilize an
appropriate sized screwdriver.
Note: Install the gas supply line 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.
2. Remove the two screws that secure the pilot shield
to the burner bracket and remove the two screws
that secure the pilot assembly to the burner bracket.
Remove the one screw that secures the burner bracket
to the valve plate. See Figure 9.2. Gently push the
pilot assembly backwards to allow for the burner to be
removed.
3. Remove the screw that secures the burner bracket to
the valve plate. See Figure 9.2.
4. Slide burner assembly to the left to disengage the
burner tube from the orifice. Remove the burner from
the appliance.
5. Remove the nine screws around the perimeter of the
valve plate that secure valve plate to the appliance.
See Figure 9.3.
6. Lift up on the plate assembly. Ensure the gas ball
valve is turned off. Disconnect the ball valve assembly
from the gas valve by loosening the compression fitting
located on the left side of the gas valve.
7. Prior to removing valve assembly for service,
disconnect the pilot wires from the ignition module.
8. Upon completion of service, reverse steps 1-7. If the
valve plate gasket is damaged, replace the gasket
prior to reinstallation of valve plate assembly.
REMOVE 9 SCREWS
REMOVE BURNER SCREW
REMOVE PILOT SCREWS
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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.
C. Gas Connection
• Refer to Reference Section 3 for location of gas line
access in appliance.
• Gas line may be run through knockout(s) provided.
• 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
during 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. Air Shutter Setting
Air shutter settings should be adjusted by a qualified ser-
vice technician 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 9.4.
• Loosen the 1/4 inch screw.
• Twist the air shutter to adjust.
• Air shutter may be opened for longer horizontal vent runs.
• Tighten the 1/4 inch screw.
NOTICE: If the flames appear to be orange or sooting
occurs, open the air shutter to prevent residue buildup on
the glass.
Figure 9.4 Air Shutter Location
Air Shutter Settings
NG Propane
COSMO32-IFT 1/16 in.1/8 in.
COSMO42-IFT 1/16 in.3/16 in.
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10 Finishing
A. Facing Materials
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.)
The appliance is designed to accept 1/2 in. wall sheathing
materials such as drywall, plywood, wood composites, or
non-combustible materials. The type of material used
depends whether the installation is an Inside or Overlap
Fit Method. Refer to Section 10.D regarding installation
details associated with the Inside and Overlap Fit
methods.
The factory-supplied non-combustible board must be
used in all installations. It must be directly attached to
structural framing adjacent to the appliance. Screw fas-
teners should be installed in the pilot holes provided in
the outer perimeter of the non-combustible board. See
Figure 10.1 and Figure 10.2.
The factory-supplied board is designed such that its edg-
es will be at the approximate center of the adjacent fram-
ing, assuming it is 1-1/2 in. nominal thickness. This will
allow the wallboard joints to occur on the center of the
framing where the panels can be fastened properly. If the
framing thickness is less than 1-1/2 in. nominal, such as
with formed steel systems, then it may be necessary to
adjust the adjacent framing dimensions so that the non-
combustible board and wallboard joints are centered on
the framing.
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-
installed non-combustible material.
WARNING! Risk of Fire! DO NOT remove the factory-
installed non-combustible board or cover it with combus-
tible material, such as:
• Drywall (gypsum board)
• Plywood
• Materials that do not meet the ASTM E 136 Non-com-
bustibility standard (below).
Removal of factory-installed, non-combustible board and/
or use of materials not meeting the ASTM E 136 standard
may cause fire.
• Facing and/or finishing materials must not interfere with
air flow through decorative fronts.
• Facing and/or finishing materials must never overhang
into the glass opening.
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.
• Observe all clearances when applying 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 decorative fronts.
WARNING! Risk of Fire! DO NOT install drywall or other
combustible materials over the factory-installed non-com-
bustible board. Overlapping materials could ignite.
Decorative facing material thickness is measured from
the face of the factory-installed non-combustible board.
See Section 10.D for Overlap Fit and Inside Fit require-
ments.
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53Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
B. Non-Combustible Board and Drywall In-
stallation
Introduction
If the desired finished fireplace installation does not utilize
non-combustible finishing materials (such as tile, marble,
stone, etc.), special attention must be paid to the instal-
lation of drywall/gypsum wallboard to minimize potential
development of cracking and paint discoloration. Hearth
and Home Technologies has tested the following methods
and materials and therefore recommends the following
steps for the best drywall performance.
Attaching Non-Combustible Board to Framing
1. To ensure the lower cover panel has been correctly
installed, verify that two screws (total) have been in-
stalled in the lower left and right sides of the fireplace
opening. See Figure 8.1. These screws, when in-
stalled, will ensure the lower panel is correctly installed.
If the lower cover panel is not correctly installed, the
decorative front may not fit into the fireplace opening
correctly. Refer to section 6.D for more information
regarding the included non-combustible board.
2. The appliance ships with the required non-combus-
tible board. The large top piece of non-combustible
board is pre-installed at the factory. The narrow left
and right non-combustible pieces are shipped within
the appliance. Install the non-combustible side pieces
with the screws provided in the manual bag assembly.
There are pilot holes located on the left and right side
columns. Care should be taken not to tighten these
screws into the non-combustible board excessively.
Set screws flush to the face of the non-combustible
board. See Figure 10.2 and Section 6.D.
3. The outer perimeter of the factory-installed non-com-
bustible board has pre-drilled pilot holes. See Figure
10.1. Secure the non-combustible board to adja-
cent framing with drywall screws that are a minimum
of 1-1/4 inch in length. Care should be taken not to
tighten these screws into the non-combustible board
excessively. Set screws flush to the face of the non-
combustible board. See Figure 10.2 and Section 6.D.
4. When installing drywall around the appliance, install
a rectangular hole for the fireplace/non-combustible
board in a single sheet of drywall. This will minimize
the joints that require finishing adjacent to the fireplace
opening. Ensure that the 1/8 inch gap is maintained
between the factory installed non-combustible board
and the surrounding drywall. See Figure 10.1. Secure
the drywall to the framing with screws a minimum of
one inch in length every six inches across the top of
the fireplace and every ten inches on the sides of the
fireplace.
5. To ensure good adhesion of drywall compounds and
tape, thoroughly clean the non-combustible board and
surrounding drywall to remove dust. The non-com-
bustible board may be primed with a high-quality PVA
primer.
PRE-DRILLED
PILOT HOLES
APPLIANCE
OPENING
FILL GAPS
Figure 10.1 Install Non-Combustible Board
Filling and Finishing Seams
1. Step 1: Fill all gaps and joints between the non-
combustible board pieces and the drywall with a
general purpose chemically setting joint compound
such as Durabond® 45 Joint Compound manufactured
by USG (Sheetrock® brand), recommended by Hearth
& Home Technologies. Use a drywall knife to firmly
press the joint compound into all gaps. See Figure
10.1. Allow these joints to dry.
2. Step 2: All joints are to be taped with fiberglass mesh
tape 1 7/8” minimum width, and embedded with
Setting-Type joint compound, such as with Durabond®
Joint Compound manufactured by USG (Sheetrock®
brand), or equivalent. Allow these joints to dry.
3. Step 3: Depending on the technique used in steps
1 and 2, two to three finishing coats are required to
provide a smooth and durable finish. Hearth and
Home Technologies recommends a lightweight or all-
purpose compound. Allow each coat to properly cure.
Allow the finishing coat(s) to cure for 24 hours before
operating appliance.
Painting
If desired finishing includes a painted wall, a high-quality
100% acrylic latex paint with a high-quality latex primer
base coat are recommended around the appliance to limit
discoloration. Oil-based or standard acrylic paints may
be more prone to discoloration due to heat exposure.
Drywall Joint-Crack Prevention and Repair
Drywall joints around the fireplace will be affected by ex-
posure to elevated temperatures, along with other envi-
ronmental, structural factors due to new construction, and
methods used to install and finish the drywall. If a crack
does emerge adjacent to the fireplace, it can be perma-
nently repaired by filling it with a paintable latex caulk,
followed by repainting.
Some movement of the screws used to secure the non-
combustible board to the appliance/surround framing is
expected. If a blemish begins to show over a screw head,
sand the surface to remove the blemish and repaint.08/28/2018
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WARNING! Risk of Fire! Maintain specified air space
clearances to combustibles. Failure to comply with
these instructions may cause a fire or cause the appli-
ance to overheat.
CAUTION! Risk of Glass Damage and Cuts! DO NOT
drill or install any type of screw or fastener into the lower
cover panel. Sharp screw or fastener tips may penetrate
and break the glass or cause cuts.
Note: It is acceptable to use a silicone sealant with
a minimum of 300 ºF continuous exposure rating to
adhere drywall to lower cover panel.
The final fireplace installation can be accomplished by
either the Overlap Fit or Inside Fit method. Reference
Section 10.D regarding installation details associated
with the Inside Fit and Overlap Fit methods.
It is acceptable to pre-drill holes and use self-tapping
screws in the installed non-combustible board to attach
non-combustible backer board for tile, marble, etc. Refer
to Figure 10.2 for acceptable screw or metal lath location
and screw length requirements.
Do not drill or install screws which may penetrate the
lower cover panel as this will restrict required access
to the glass, battery-backup, and control module. See
Figure 10.2.
Note: If the desired look is painted drywall, it is
recommended that no additional screws are installed into
the factory-provided non-combustible board. Only install
the screws provided into the pilot holes located in the
factory-provided non-combustible board.
Figure 10.2 Finishing Details - COSMO42-IFT and COSMO32-IFT
WARNING! Risk of Fire! Maintain specified air space
clearances to combustibles. Inadequate air space could
cause overheating and fire.
FACTORY-INSTALLED
NON-COMBUSTIBLE BOARD
LOWER COVER PANEL
= NO SCREWS ALLOWED
= 1 INCH. MAX. SELF-TAPPING SCREWS ALLOWED
= 5 INCH - 7 INCH SELF-TAPPING SCREWS ALLOWED
PILOT HOLES (11 LOCATIONS) TO ATTACH
NON-COMBUSTIBLE BOARD TO FRAMING
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C. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clear-
ances as specified. Framing closer than the minimums list-
ed must be constructed entirely of non-combustible materi-
als (i.e., steel studs, concrete board, etc.).
Note: Measurement is taken from top of the
opening, NOT the top of the fireplace.
Figure 10.3 Clearances To Combustibles Mantels Or Other
Combustibles Above Appliance
Combustible Mantels
Non-combustible Mantels
Figure 10.4 Clearances To Non-Combustible Mantels Or Other
Non-Combustibles Above Appliance
1/2 IN. THICK WALL SHEATHING
12 IN. MAX.
14 IN. MIN. BOTTOM OF MANTEL
TO TOP OF APPLIANCE OPENING
COMBUSTIBLE MANTEL
APPLIANCE OPENING
12 IN.MAX.
1/2 IN. THICK WALL SHEATHING
14 IN. MIN. BOTTOM OF MANTEL TO TOP OF APPLIANCE OPENING
NON-COMBUSTIBLE
MANTEL
6 IN. MAX.
NON-COMBUSTIBLE MANTEL
APPLIANCE OPENING
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Figure 10.5 Combustible or Non-Combustible Mantel Leg
or Wall Projections (Acceptable on both sides of opening)
Figure 10.6 Combustible or Non-Combustible Mantel Leg or Wall Projections - Unlimited Wall Length (Acceptable on both sides of opening)
Note: Clearance from opening to
perpendicular wall.
Mantel Legs Or Wall Projections Extending Past The Face
Of The Fireplace (Combustible or Non-Combustible)
WALL3 FT. MAX.
6 IN.
MIN.
APPLIANCE OPENING
Note: Clearance from opening to
perpendicular wall.
WALL
UNLIMITED
7 IN.
MIN.
APPLIANCE OPENING
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D. Decorative Front Finishing
WARNING! Risk of Fire! A decorative front is required
for this model. DO NOT operate this appliance without a
decorative front in place.
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.
FRONT FACE OF FIREPLACE
DECORATIVE FRONT
1 IN. MAX.
FINISHING MATERIAL (TOP EDGE)
Figure 10.7 Overlap Fit Decorative Front
(CFT and Martini Decorative Fronts)
Finishing materials 1 inch maximum thick.
Stop finishing material flush with opening.
Overlap Fit - CFT and Martini Decorative Fronts
(0 Inches to 1 Inch Thick Finishing Material)
Figure 10.8 Overlap Fit Method
(CFT and Martini Decorative Fronts)
FACTORY-INSTALLED NON-COMBUSTIBLE BOARD
NON-COMBUSTIBLE FINISHING MATERIAL 0 - 1 IN. THICK
NON-COMBUSTIBLE FINISHING MATERIAL 0 - 1 IN. THICK
CFTDECORATIVE
FRONT SHOWN
DRYWALL OR EQUIVALENT (1/2 IN.)
Both the CFT and Martini decorative fronts are designed
to overlap finish materials 0 inches to 1 inch thick. See
Figure 10.7 and Figure 10.8.
NOTICE: This one inch maximum not only includes the
decorative finish materials (marble, tile, slate, etc) but
also the mortar or adhesive used to attach the decorative
finish material.
The non-combustible finish material can be installed up to
the fireplace opening.
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Figure 10.9 Maximum Finish Material Thickness - CFT Decorative Front
Inside Fit - CFT Front
(1 Inch to 6 Inch Thick Finishing Material)
FINISHING MATERIAL6 IN. MAXIMUM THICKNESSFINISHING MATERIAL6 IN. MAXIMUM THICKNESS
CFT Decorative Front
Non-Combustible Finish Material 1-6 Inches Thick
1-3/16 IN.
1-3/16 IN. (CFT)
1-3/16 IN.
Figure 10.10 Clearances to Appliance Opening With Outer Deco-rative Front Trim
Figure 10.11 CFT Front Installation With Outer Decorative Front Trim
OUTER DECORATIVE
FRONT TRIM
INNER DECORATIVE
FRONT ASSEMBLYTOP VANITY PANEL (NOT SHOWN)
TABS (4)
FAC
E
O
F
N
O
N
-
C
O
M
B
U
S
T
I
B
L
E
B
O
A
R
D
The CFT is the only approved front for inside fit applications
(finish material over 1 inch thick). The CFT decorative front
can be installed with or without the outer decorative front
trim (included with the decorative front). See Figure 10.9.
If the desired look is to include the outer decorative front
trim, finishing materials up to 1-3/16 around the fireplace
opening. See Fig 10.10. For this installation, the inner
decorative front hangs on four tabs located on outer
decorative front trim. The auxiliary hanging brackets are
not used and may be discarded. See Figure 10.11.
If the desired look is to exclude the outer decorative front
trim, finishing material can be installed up to the fireplace
opening. See Fig 10.12. For this installation, the inner
decorative front hangs on four tabs located on the auxiliary
hanging brackets. The outer decorative front trim is not
used and may be discarded. See Figure 10.13.
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(BOTH SIDES)
(BOTH SIDES)
FAC
E
O
F
N
O
N
-
C
O
M
B
U
S
T
I
B
L
E
B
O
A
R
D
AUX
I
L
I
A
R
Y
H
A
N
G
I
N
G
BRA
C
K
E
T
S
Figure 10.13 CFT Front Without Outer Decorative Front Trim
CFT Decorative FrontNon-Combustible Finish Material 1-6 Inches Thick
0 IN.
0 IN. (CFT)
0 IN.
Figure 10.12 Clearances to Appliance Opening Without Outer
Decorative Front Trim
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A. Remove 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.
2. The glass assembly has two upper spring latches
and two lower spring latches. See Figure 11.1. Lo-
cate the two spring latches that are on the upper left
and right of the fireplace.
3. Pull upper spring latch on one side forward to release
glass assembly while supporting glass assembly with
opposite hand. Repeat for the other upper spring
latch always taking care to support the glass assem-
bly with one hand.
4. Grasp glass on the upper right and left sides and
remove glass assembly by lifting “up” and “out”.
Note: Observe the presence of a space or gap between
the glass latch and the front of the appliance where the
bottom of the glass assembly is positioned. This gap is
designed for positive placement when replacing the glass
assembly. See Section 11.I.
11 Appliance Setup
Figure 11.1 Fixed Glass Assembly
D. Install the Glass Refractory (Optional)
An optional glass refractory kit is available for use with the
COSMO42-IFT and COSMO32-IFT models. Install the
glass refractory per instructions included with the kit. C. Clean the Appliance
Clean/vacuum any sawdust that may have accumulated
inside the firebox or underneath in the control cavity.
UPPER SPRING LATCH
LOWER SPRING LATCH
GAP
B. Remove the Shipping Materials
Remove shipping materials from inside or underneath
the firebox.
• 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. Splatter guards may be factory installed
or accompany the decorative front of the appliance,
depending on the fireplace model. Splatter guards
must be removed before appliance is fired.
• The left and right side non-combustible boards are
packaged within the splatter guard. Remove them
by carefully disengaging the tabs from the slots on
the lower portion of the splatter guard. Install as
instructed in Section 6.
WARNING! Risk of Fire! Close the ball valve before in-
stalling the splatter guard to prevent accidental lighting.
Remove the splatter guard before lighting the appliance.
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61Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
F. Install Media
Decorative glass media is included with the COSMO42-
IFT and COSMO32-IFT models.
Placing the Media
Install glass media around the burner ensuring that no
media is placed on the burner or in the gap located be-
hind the burner. See Figure 11.2. Install media on top of
pilot shield.
WARNING
Delayed Ignition Risk
• Place media according to instructions.
• Do NOT place media in area in front of pilot
• Do NOT place media in a position that they may
fall into area in front of pilot.
• Do NOT use any media other than the Hearth
& Home Technologies-supplied options for this
fireplace model.
Fireplace will not function properly.
Delayed ignition may occur.
WARNING
Risk of Asphyxiation or Fumes.
• Place media according to instructions.
• Do NOT place media in area between glass and
firebox.
• Do NOT place media in a position that they may
fall into area between glass and firebox.
• Do NOT use any media other than the media
supplied with this fireplace.
Fireplace will not function properly.
Gas leak may occur.
Figure 11.2 Media Placement
PILOT SHIELD
NO MEDIA ON BURNER
NO MEDIA IN GAP
G. Install Stones (Optional)
An optional stones kit is available for use with the COS-
MO42-IFT and COSMO32-IFT models. Install the stones
per instructions included with the kit.
H. Install Log Sets (Optional)
Optional log sets are available for use with the COSMO42-
IFT and COSMO32-IFT models. Install the log set per
instructions included with the kit.
I. Install 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.
Replacing Fixed Glass Assembly
The bottom glass latches have been designed to create
a small gap between the glass clip and the face of the
appliance. See Figure 11.1.
1. Install the bottom of the glass assembly so that the
two tabs on the bottom of the glass latch engage the
gap. By tilting the top of the glass towards the face of
the appliance, tension will be applied to the bottom two
glass latches. Use one hand to support the glass at
all times.
2. Fasten the two upper glass latches, one at a time, by
pulling out and downward into position on the glass
assembly. Use one hand to support the glass at all
times.
3. Verify that the top two glass latches are engaged by
visually verifying that glass latches have engaged both
left and right tabs on the glass frame.
4. Verify the bottom two glass latches have engaged the
glass frame tabs by grasping the bottom of the glass
frame assembly and pulling the glass frame assembly
“away” from the face of the appliance and “release”
the glass frame. The spring action of the clips will
“pull” the glass frame assembly towards the face of
the appliance if bottom clips are properly engaged. If
the glass frame assembly does not pull back towards
the face of the appliance, repeat steps 1-4.
WARNING! Risk of Explosion! Risk of Asphyxiation!
Glass latches MUST be properly engaged. Inspect glass
seal before installing decorative front. Gas could leak!
5. Reinstall decorative front.
E. Install LED Lights (Optional)
An optional LED light kit is available for use with the
COSMO42-IFT and COSMO32-IFT models. Install the
LED lights per the instructions included in the kit.
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J. Install Decorative Front
WARNING! Risk of Fire! Install ONLY decorative fronts
approved by Hearth & Home Technologies. Unapproved
decorative fronts could cause fireplace to overheat.
IMPORTANT! This fireplace requires an integral barrier
to prevent direct contact with the hot viewing glass.
DO NOT operate the fireplace with the barrier removed.
Contact your dealer or Hearth & Home Technologies if
the barrier is not present or help is needed to properly
install one.
For more information refer to the instructions supplied with
your decorative front.
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63Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
12 Reference Materials
A. Vent Components Diagrams
Figure 12.1 SLP Series Vent Components
8-3/4 in.
222 mm
6-1/2 in.165 mm
6-5/8 in.
168 mm
6 in.
152 mm
6-1/2 in.
165 mm
6-5/8 in.168 mm
9-7/8 in.
251 mm
6-1/2 in.165 mm9-1/4 in.235 mm
SLP45
45° Elbow
SLP90
90° Elbow
EffectiveHeight/Length
SLP PIPE SLP-HVSHorizontal Pipe
Support
SLP-FS
Ceiling Firestop
SLP-WS
Wall Shield Firestop
10-7/8 in.
276 mm
8-7/8 in.225 mm
1-1/2 in.
38 mm
8-11/16 in.
220 mm
8-11/16 in.
220 mm
1-1/2 in.
38 mm 12 in.305 mm
12 in.
305 mm
5-1/2 in.146 mm
Effective Height/Length
Pipe inches mm
SLP4 4 102
SLP6 6 152
SLP12 12 305
SLP24 24 610
SLP36 36 914
SLP48 48 1219
SLP6A 2 - 6 51 - 152
SLP12A 2 - 12 51 - 305
SLP-FLEX-2 24 610
SLP-FLEX-3 36 914
SLP-FLEX-5 60 1524
SLP-FLEX-10 120 3048
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A. Vent Components Diagrams (continued)
Figure 12.2 SLP Series Vent Components
SLP-WT-BK
Wall Thimble-Black
SL-2DVPAdapter
26 in.
660 mm
DVP-HSM-B
Extended Heat Shield
SLP-TRAP
Horizontal Termination Cap
15-1/8 in.(384 mm)
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 MinimumEffective Length MaximumEffective Length
Trap1 3-1/8 in. 4-3/4 in.
79 mm 121 mm
Trap2 5-1/4 in. 9-1/4 in.
133 mm 235 mm
8 in.
(203 mm)
12 in.(305 mm)
Max
Effective
Length
14-7/16 in.
367 mm
14-7/16 in.367 mm
2-5/16 in.59 mm
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)
12-5/8 IN.
(321 mm)
12-5/8 IN.
(321 mm)
20 IN.
(508 mm)
10-5/8 IN.(270 mm)
SLP-RDS
ROOF DECK INSULATION SHIELD
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65Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
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)
13 in.
330 mm
13 in.
330 mm
1-5/16 in.
34 mm10-9/16 in.
269 mm
14 in.356 mm
12-1/2 in.318 mm
12 in.
305 mm
SLP-FLEX-TRAP
Horizontal
Termination Kit
14 in.356 mm
14-1/16 in.
357 mm
7-1/2 in.192 mm
10-3/4 in.
273 mm
SLP-CCS-BK
Cathedral Ceiling Support Box-Black
SLP-DCF-BKCeiling Firestop
Black
SLK-SNKD
SnorkelTermination Cap
SLP-TVHWVertical
Termination Cap
DVP-FBHTHorizontal
Termination Cap
(SL-2DVP Required)
13-1/2 in.
343 mm
28-1/2 in.
724 mm
10-11/16 in.
271mm
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
4-3/4 in.
121 mm
4-1/8 in.
105 mm
6 IN.152 mm
A. Vent Components Diagrams (continued)
Figure 12.3 SLP Series Vent Components 08/28/2018
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LINK-DV30B
Flex Liner Kit DV-46DVA-GCLCoaxial/Colinear Appliance Connector
768-380A
Stainless Steel Flex Pipe
(Required on COSMO32-IFT)
COAXIAL to COLINEAR VENTING
Figure 12.5 Coaxial to Colinear Vent Components
SLP-HHW2Horizontal High Wind Termination Cap
15 IN.
(381 mm)
12 IN.(305 mm)
8 IN.
(203 mm)
Figure 12.4 SLP series Vent Components
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67Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
Figure 12.6 PVI-SLP-B Vent Components
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
PVI-SLP-BPower Vent Inline
SLP-LPC
SLP Low Profile Cap
(Approved for use with PVI-SLP-B only)
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)
12-1/2 IN.318 mm
20-3/4 IN.
527 mm
13-5/8 IN.346 mmEFFECTIVE LENGTH32 IN. (813 mm) MIN.35 IN. (889 mm) MAX.
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 one of the following options to be installed on this appliance.
Option A: IFT-RC400 OR
Option B: IFT-RC150 and IFT-ACM.
These accessories are purchased separately from the PVLP-SLP. Contact your dealer to order.
Note: The PVI-SLP-B can not be installed with the Smart-Wall™ TV Kit.
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A. Vent Components Diagrams (continued)
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 12.7 PVLP-SLP Vent Components
PVLP-HSHeat 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
PVLP-SLP
Power Vent Low Profile
Note: Wire harnesses required to power the PVLP-SLP connect to the appliance and are ordered separately from
PVLP-SLP. 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.
Note: The PVLP-SLP requires one of the following options to be installed on this appliance.
Option A: IFT-RC400 OR
Option B: IFT-RC150 and IFT-ACM.
These accessories are purchased separately from the PVLP-SLP. Contact your dealer to order.
Note: The PVLP-SLP can not be installed with the Smart-Wall™ TV Kit.
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69Heat & Glo • COSMO42-IFT, COSMO32-IFT Installation Manual • 2491-980 Rev. F • 4/18
B. Accessories
Printed in U.S.A. - Copyright 2018
Heat & Glo, a brand of Hearth & Home Technologies
7571 215th Street West, Lakeville, MN 55044www.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.
Remote Controls, Wall Controls and Wall
Switches
After a qualified service technician has installed the re-
mote control, wall control or wall switch, follow the in-
structions 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.
Install approved accessories per instructions included
with accessories. Contact your dealer for a list of ap-
proved accessories.
It is recommended that optional accessories are installed
prior to installation of finishing material. The lower cover
panel is removable and provides access for installation of
the optional fan, LED kit and remote control upgrades. If
finishing material is already installed, the optional acces-
sories must be installed by removing the basepan, burner
and valve assembly. Use only Hearth & Home Technol-
ogies-approved optional accessories with this appliance.
WARNING! Risk of Fire and Electric Shock! Use ONLY
Hearth & Home Technologies-approved optional acces-
sories with this appliance. Using non-listed accessories
could result in a safety hazard and will void the warranty.
Optional Fan
After a qualified service technician has installed the fan,
follow the instructions supplied with the fan kit to operate
your fan. Contact your dealer if you have questions.
Note: The optional fan can not be used with the Smart-
Wall™ TV Kit.
Optional Glass Refractory Kit
An optional glass refractory kit is available for COSMO32-
IFT and COSMO42-IFT. Follow the instructions supplied
with the kit for installation. Contact your dealer if you have
questions.
Optional Log Kits
Traditional or Driftwood Log kits are available for COS-
MO32-IFT and COSMO42-IFT. Follow the instructions
supplied with the kit for installation. Contact your dealer if
you have questions.
Optional LED Kit
An optional LED lighting kit is available for COSMO32-
IFT and COSMO42-IFT. Follow the instructions supplied
with the kit for installation and operation. Contact your
dealer if you have questions.
Optional Stones Kit
An optional stones kit is available for use with the COS-
MO42-IFT and COSMO32-IFT models. Follow the instruc-
tions supplied with the kit for installation. Contact your
dealer if you have questions.
Optional Heat Management Systems
After a qualified service technician has installed the Heat-
Zone® -Gas, Smart-Wall™ TV Kit, Heat-Duct Kit, or Heat-
Out-Gas Kit, follow the instructions supplied with the kit for
operation. Contact your dealer if you have questions.
Note: Optional heat management systems kit must be
installed while the sides of the appliance are accessible.
Note: The Smart-Wall™ TV Kit can not be used with an
optional fan or Power Vent.
08/28/2018