Heat Glo COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual

Installation Manual

Installation and Appliance Setup

CAUTION! Risk of Fire! DO NOT store instruction manuals inside replace cavity.
High temperatures could cause a re.

INSTALLER: Leave this manual with the appliance, not inside the appliance.
CONSUMER: Retain this manual for future reference. Do not store inside the appliance.

NOTICE: DO NOT discard this manual!

Models:

COSMO32-IFT-B
COSMO36-IFT-B
COSMO42-IFT-B

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 certied kit is used.

WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.

• DO NOT store or use gasoline or other am-
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 sup­plier’s instructions.

- If you cannot reach your gas supplier, call

the re department.

• Installation and service must be performed
by a qualied installer, service agency, or the
gas supplier.

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 must be installed for
the protection of children and other at-risk
individuals.

Decorative barrier front must be ordered separately at
time of appliance purchase. See Section 3.A.

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

1

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.
Note: The term “recommend” or “recommended” does not indicate a requirement. It is a best practice suggested by

Hearth & Home Technologies®.

Table of Contents

Installation Standard Work Checklist ....................3

1 Product Specic and Important Safety Information

A. Appliance Certication ............................4

B. Glass Specications ..............................4

C. BTU Specications ...............................4

D. High Altitude Installations ..........................4

E. Non-Combustible Materials Specication. . . . . . . . . . . . . . 5

F. Combustible Materials Specication .................5

G. Electrical Codes .................................5

H. California ......................................5

I. 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 ........................8

D. Inspect Appliance and Components ..................8

3 Framing and Clearances

A. Appliance/Decorative Barrier Front Dimension Diagrams . 9
B. Appliance Location and Clearances to Combustibles ... 14



C. Constructing the Appliance Chase ..................20

4 Termination Location and Vent Information

A. Approved Pipe .................................21

B. Vent Termination Minimum Clearances .............. 21

C. Vent Terminal Clearances ........................ 23

D. Use of Elbows .................................24

E. Use of Flex Vent (SLP-FLEX Series 6-5/8 Inch) .......25

F. Vent Diagrams .................................26

5 Vent Clearances and Vent Framing

A. Vent Clearances to Combustibles .................. 38

B. Wall Penetration Framing/Firestops .................38

C. Ceiling Firestop/Floor Penetration Framing ........... 39

D. Install Attic Insulation Shield .......................39

6 Appliance Preparation

A. Vent Collar Preparation ..........................40

B. Prepare For Heat Management ....................41

C. Securing and Leveling the Appliance ................42

D. Non-Combustible Material Installation ............... 43



E. Auxiliary Hanging Bracket Installation ............... 43



7 Venting

A . Assemble Vent Sections (SLP Only) ................44

B. Assemble Slip Sections ..........................45

C. Secure the Vent Sections ......................... 45

D. Disassemble Vent Sections ....................... 46

E. Vertical Termination Requirements ..................47

F. Horizontal Termination Requirements ............... 48

8 Electrical Information

A. General Information .............................49

B. Wiring Requirements ............................50

9 Gas Information

A. Fuel Conversion ................................ 55

B. Gas Pressure ..................................55

C. Gas Connection ................................ 57

D. High Altitude Installations .........................57

E. Air Shutter Setting ..............................58

10 Finishing

A. Facing Material .................................59

B. Non-Combustible Board and Drywall Installation .......60

C. Mantel and Wall Projections ....................... 62

D. Decorative Barrier Front Dimensions for Finishing. . . . . . 64

11 Appliance Setup

A. Remove the Shipping Materials ....................68

B. Clean the Appliance .............................68

C. Install the Glass Refractory (Optional) ..............68

D. Install LED Lights (Optional) ......................68

E. Install Stones (Optional) ......................... 68

F. Install Log Sets (Optional) ........................68

G. Install Media .................................. 68

H. IntelliFire Touch® Control System Setup .............. 69

I. Fixed Glass Assembly Removal and Replacement .....69

J. Install Decorative Barrier Front. . . . . . . . . . . . . . . . . . . . . 70

12 Reference Materials

A. Vent Components Diagrams ......................71

B. Accessories ................................... 79

 = Contains updated information.

2

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

Installation Standard Work Checklist

ATTENTION INSTALLER:

Follow this Standard Work Checklist

This standard work checklist is to be used by the installer in conjunction with, not instead of, the instructions contained in this

installation manual.

Customer:
Lot/Address:

Model (circle one): COSMO32-IFT-B COSMO36-IFT-B
COSMO42-IFT-B

WARNING! Risk of Fire or Explosion! Failure to install appliance according to these instructions could lead

to a re or explosion. Install ONLY components and accessories approved by Hearth & Home Technologies.
Unapproved components and accessories could cause replace to overheat.

Appliance Install YES IF NO, WHY?

Veried that the chase is insulated and sealed. (Pg. 20) ___________________________
Required non-combustible board is installed. (Pg. 43) ___________________________
Veried clearances to combustibles. (Pg. 14-19) ___________________________
Fireplace is leveled and secured. (Pg. 42) ___________________________

Optional Heat Management System and/or Power Vent installed correctly. ___________________________

Venting/Chimney Sections 4, 5 and 7

Venting conguration complies to vent diagrams. (Pg 26-37) ___________________________
Venting installed, locked and secured in place with proper clearance.

(May need to order separately.) ___________________________

Firestops installed. (Section 5) ___________________________
Attic insulation shield installed. (Pg 39) ___________________________
Exterior wall/Roof ashing installed and sealed. ___________________________

Terminations installed and sealed. ___________________________

Electrical Section 8 (Pg 49-54)

Unswitched power (110-120 VAC) provided to the appliance. ___________________________
Switch wires properly installed. ___________________________

Date Installed:
Location of Fireplace:
Installer:
Dealer/Distributor Phone #

Serial #:

Gas Section 9 (Pg 55-58)

Proper appliance for fuel type. ___________________________

Was a conversion performed? ___________________________

Leak check performed and inlet pressure veried. ___________________________
Veried proper air shutter setting for installation type. ___________________________

Finishing Section 10 (Pg 59-67)
Combustible materials not installed in non-combustible areas. ___________________________

Veried all clearances meet installation manual requirements. ___________________________

Mantels and wall projections comply with installation manual requirements. ___________________________

Appliance Setup Section 11 (Pg 68-70)

All packaging and protective materials removed (inside & outside of appliance). ___________________________
Refractories, logs, media and embers installed correctly. ___________________________

Glass assembly installed and secured. ___________________________
Accessories installed properly. ___________________________
Mesh, decorative barrier front properly installed.
(May need to order separately.) __________________________

Manual bag and all of its contents are removed from inside/under
the appliance and given to party responsible for use and operation. ___________________________
Started appliance and veried no gas leaks exist. ___________________________

Hearth & Home Technologies recommends the following:

• Photographing the installation and copying this checklist for your le.

• That this checklist remain visible at all times on the appliance until the installation is complete.

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)

 = Contains updated information.

2619-982 Rev. C 7/20

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

3

1 1

Product Specic and Important Safety Information

A. Appliance Certication

MODELS: COSMO42-IFT-B, COSMO36-IFT-B,

COSMO32-IFT-B

LABORATORY: Underwriters Laboratories, Inc. (UL)

TYPE: Direct Vent Heater

STANDARD: CSA / ANSI Z21.88-2019 • CSA 2.33-2019

This product is listed to ANSI standards for “Vented
Gas Fireplace Heaters” and applicable sections of “Gas
Burning Heating Appliances for Manufactured Homes
and Recreational Vehicles”, and “Gas Fired Appliances
for Use at High Altitudes”. Also Certied for Installation in
a Bedroom or a Bedsitting Room.

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.

NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.

This appliance is tested and approved as either supplemen­tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.

B. Glass Specications

Hearth & Home Technologies appliances manufactured
with tempered glass may be installed in hazardous lo­cations such as bathtub enclosures as dened by the
Consumer Product Safety Commission (CPSC). The
tempered glass has been tested and certied to the re­quirements of ANSI Z97.1 and CPSC 16 CFR 1202
(Safety Glazing Certication 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 “Certication and labeling requirements”
which refers to 15 U.S. Code (USC) 2063 stating “…Such
certicate 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 Specications

Models

(U.S. or Canada)

COSMO42-IFT-B

(NG)

COSMO42-IFT-B

(PROPANE)

COSMO36-IFT-B

(NG)

COSMO36-IFT-B

(PROPANE)

COSMO32-IFT-B

(NG)

COSMO32-IFT-B

(PROPANE)

(0-2000 FT)

(0-2000 FT)

(0-2000 FT)

(0-2000 FT)

(0-2000 FT)

(0-2000 FT)

Maximum

Input BTU/h

25,250 17,500 #42

23,500 17,500 .057

20,500 14,500 #44

19,000 14,000 #55

19,000 13,250 #45

16,500 12,750

Minimum

Input BTU/h

Orice

Size

(DMS)

1.25
mm

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 certied 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
orice size.

4

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

E. Non-Combustible Materials Specication

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 Specication

Materials made of or surfaced with wood, compressed pa­per, plant bers, plastics, or other material that can ignite
and burn, whether ame 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.

H. California

WARNING: This product and the fuels used to

operate this product (liquid propane or natural
gas), and the products of combustion of such fuels, can
expose you to chemicals including benzene, which is
known to the State of California to cause cancer and
reproductive harm. For more information go to: www.
P65Warnings.ca.gov.

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

5

Note: The following requirements reference various
Massachusetts and national codes not contained in this
document.

I. 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 nished grade in the area of the venting, in­cluding but not limited to decks and porches, the following
requirements shall be satised:

Installation of Carbon Monoxide Detectors

At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gas tter
shall observe that a hard wired carbon monoxide detector
with an alarm and battery back-up is installed on the oor
level where the gas equipment is to be installed. In addi­tion, the installing plumber or gas tter shall observe that
a battery operated or hard wired carbon monoxide detec­tor 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 qualied licensed professionals for the installation of
hard wired carbon monoxide detectors.

In the event that the side wall horizontally vented gas fu­eled 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
oor 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 dur­ing said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.

Inspection

The state or local gas inspector of the side wall horizon­tally vented gas fueled equipment shall not approve the
installation unless, upon inspection, the inspector ob­serves 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 fu­eled 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 pro­vide the parts for venting the ue gases, but identies
“special venting systems”, the following requirements
shall be satised by the manufacturer:

Approved Carbon Monoxide Detectors

Each carbon monoxide detector as required in accor­dance with the above provisions shall comply with NFPA
720 and be ANSI/UL 2034 listed and IAS certied.

Signage

A metal or plastic identication plate shall be permanent­ly 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 fu­eled 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 OB­STRUCTIONS”.

6

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

• The referenced “special venting system” instructions
shall be included with the appliance or equipment in­stallation instructions; and

• The “special venting systems” shall be Product Ap­proved by the Board, and the instructions for that sys­tem shall include a parts list and detailed installation
instructions.

A copy of all installation instructions for all Product Ap­proved side wall horizontally vented gas fueled equip­ment, 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 Common­wealth of Massachusetts requirements.

2 2

Getting Started

A. Design and Installation Considerations

WARNING! Risk of Fire or Explosion! Read all instruc­tions before starting the installation.

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, re o󰀩cials 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 conguration to be used. If Passive
Heat will be installed, consider location of discharge
opening in relation to venting and other construction
materials.

• Gas supply piping requirements.

• Provisions for optional heat management system.

• Electrical wiring requirements.

• Framing and nishing details.

• Whether optional accessories—devices such as a fan,
wall switch, or remote control—are desired.

Installation and service of this appliance should be performed by
qualied personnel. Hearth & Home Technologies recommends
HHT Factory Trained or NFI certied professionals.

B. Good Faith Wall Surface

TO CEILING

105°F

104°F

24 in.

101°F

30 in.

TO CEILIN G

95°F

98°F

42 in.

36 in.

95°F

36 in.

30 in.

FIREPL ACE

OPENIN G

110°F

119°F

24 in.

142°F

18 in.

194°F

12 in.

6 in.

MEASUR EMENTS FROM

TOP EDGE O F THE OPENING

APPLIAN CE FRONT

Figure 2.1 Good Faith Wall Surface Temperatures Above
Appliance

OPTIONAL PASSIVE HEAT KIT OR

TM

SMART-WALL

TV KIT INSTALLED

FIREPL ACE

OPENI NG

120°F

145°F

6 in.

109°F

18 in.

12 in.

95°F

48 in.

Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a qualied
service technician, service agency or your dealer.

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

MEASU REMENTS FROM

TOP EDGE O F THE OPENIN G

Figure 2.2 Good Faith Wall Surface Temperatures Above
Appliance with Passive Heat or Smart-WallTM Kit Installed

If installing a television (TV) above the appliance, see
Section 3 of the appliance Owner’s Manual.

NOTICE: Surface temperatures listed above are taken with
a temperature measuring probe as prescribed by the test
standard used for appliance certication. Temperatures
on walls or mantels taken with an infrared thermometer
may yield increased temperatures of up to 30 °F (17 °C) or
more depending on the thermometer settings and material
characteristics being measured. Use appropriate nishing
materials that are able to withstand these conditions. For
additional nishing guidelines, see Section 10.

7

C. Tools and Supplies Needed

Before beginning the installation be sure that the following
tools and building supplies are available.

Hand Tools Tape measure
Level Framing material
Manometer Framing square
Voltmeter Electric drill and bits (1/4 in.)
Plumb line Safety glasses/Gloves
Wrenches Reciprocating saw
1/4 in. nut driver
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)

D. Inspect Appliance and Components

WARNING! Risk of Fire or Explosion! Damaged parts
could impair safe operation. DO NOT install damaged, in­complete or substitute components. Keep appliance dry.

WARNING! Risk of Fire, Explosion or Electric Shock!
DO NOT use this appliance if any part has been under

water. Call a qualied service technician to inspect the
appliance and to replace any part of the control system
and/or gas control which has been under water.

• Carefully remove the appliance and components from

the packaging.

• The vent system components and decorative barrier

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.

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.

• Modication of the appliance or vent system.

• Installation other than as instructed by Hearth & Home
Technologies.

• Improper positioning of the logs/media (as applicable) or
the glass assembly.

• Installation and/or use of any component part not approved
by Hearth & Home Technologies.

8

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

3 3

Framing and Clearances

A. Appliance/Decorative Barrier Front Dimension Diagrams

Dimensions are actual appliance dimensions. Use for reference only. For framing dimensions and clearances refer to Section 5.

O

GAS LINE

ACCESS

LEFT VIEW

Q

HEAT MANAGEMENT
SYSTEMS ACCESS

R

M

Ø

U

V

S

P

X

TOP VIEW

L

N Ø

C

B
A

T

FRONT VIEW

K

I

D

W

J

E

H

F

G

RIGHT VIEW

ELECTRICAL

ACCESS

Appliance Dimensions Table

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 40-1/2 1029

I 9-13/16 249

J 17-3/4 451

K 1/2 13

L 25-3/4 654

Figure 3.1 Appliance Dimensions - COSMO32-IFT-B

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

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 6-1/8 156

V 7-1/2 191

W 10-3/8 264

X 7-3/4 197

9

HEAT MANAGEMENT
SYSTEMS ACCESS

O

GAS LINE

ACCESS

TOP VIEW

K

L

R

M

Ø

U

V

N Ø

J

I

W

C

E

S

D

H

P

X

F

Q

B
A

G

ELECTRICAL

ACCESS

T

Appliance Dimensions Table

Location Inches Millimeters

A 41 1041

B 36 914

C 32-1/4 819

D 15-1/4 387

E 33-11/16 856

F 3-1/2 89

G 7 178

H 46-1/2 1181

I 9-13/16 249

J 17-3/4 451

K 1/2 13

L 30-3/4 781

Figure 3.2 Appliance Dimensions - COSMO36-IFT-B

10

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

Location Inches Millimeters

M 16-3/4 426

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 43-1/2 1105

U 6-1/8 156

V 7-1/2 191

W 10-3/8 264

X 7-3/4 197

O

GAS LINE

ACCESS

HEAT MANAGEMENT
SYSTEMS ACCESS

R

Ø

U

S

P

X

Q

M

TOP VIEW

K

L

J

I

W

V

N Ø

C

H

E

D

F

B
A

G

ELECTRICAL

ACCESS

T

LEFT VIEW

Appliance Dimensions Table

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 46-1/2 1181

I 9-13/16 249

J 17-3/4 451

K 1/2 13

L 37-3/4 959

Figure 3.3 Appliance Dimensions - COSMO42-IFT-B

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

FRONT VIEW RIGHT VIEW

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 6-1/8 156

V 7-1/2 191

W 10-3/8 264

X 7-3/4 197

11

CFTF DECORATIVE BARRIER FRONTS

Dimensions are actual decorative barrier front dimensions. Use for reference only.

IMPORTANT! This replace requires an installed decorative barrier front to prevent direct contact with the
hot viewing glass. DO NOT operate the replace with the barrier removed.

Decorative barrier front must be ordered at time of replace purchase. If decorative barrier front is not
present, contact dealer.

Note: See Section 10 for hearth, mantel and nishing requirements.

Barrier Mesh: Integral to
Decorative Barrier Front

G

H

A

B

F

E

D

COSMO32-IFT-B CFTF-32

COSMO36-IFT-B CFTF-36

COSMO42-IFT-B CFTF-42

C

A B C D E F G H

in. 28-3/16 14-1/8 33-1/8 6-7/8 9-13/16 19-7/8 26-7/8 25-1/8

mm 716 359 841 175 249 505 683 638

in. 33-3/16 14-1/8 38-1/8 6-7/8 9-13/16 19-7/8 26-7/8 25-3/16

mm 843 359 968 175 249 505 683 640

in. 40-3/16 14-1/8 45-1/8 6-7/8 9-13/16 19-7/8 26-7/8 25-3/16

mm 1021 359 1146 175 249 505 683 640

Figure 3.4 Decorative Barrier Front Dimensions - CFTF

12

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

MARTINI DECORATIVE BARRIER FRONTS

IMPORTANT! This replace requires an installed decorative barrier front to prevent direct contact with the
hot viewing glass. DO NOT operate the replace with the barrier removed.

Decorative barrier front must be ordered at time of replace purchase. If decorative barrier front is not
present, contact dealer.

Note: See Section 10 for hearth, mantel and nishing requirements.

Barrier Mesh: Integral to
Decorative Barrier Front

G

H

E

D

COSMO32-IFT-B MAR-COSMO32

COSMO36-IFT-B MAR-COSMO36

COSMO42-IFT-B MAR-COSMO42

B

A

C

F

A B C D E F G H

in. 28-1/4 14-7/8 34-3/16 6-5/16 9-3/8 20-3/4 27-1/8 25-7/8

mm 718 377 867 160 239 527 689 657

in. 33-1/4 14-7/8 39-3/16 6-5/16 9-5/16 20-3/4 27-1/16 25-15/16

mm 845 377 995 160 237 527 687 658

in. 40-1/4 14-7/8 46-3/16 6-5/16 9-5/16 20-3/4 27-1/16 25-15/16

mm 1023 377 1172 160 237 527 688 658

Figure 3.5 Decorative Barrier Front Dimensions - MARTINI

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

13

B. Appliance Location and Clearances to

Combustibles

When selecting a location for the appliance it is important
to consider the required clearances to walls and allow suf­cient clearance for heat management systems venting.
See Figure 3.5 and Figure 3.6.

WARNING! Risk of Fire or Burns! Provide adequate
clearance around air openings and for service access.
Due to high temperatures, the appliance should be lo­cated out of trac and away from furniture and draperies.

NOTICE: Illustrations reect typical installations and are
FOR DESIGN PURPOSES ONLY. Illustrations/diagrams
are not drawn to scale. Actual installation may vary due to
individual design preference.

A

E

1/2 IN.

D*

A

C

TOP VENT

0

ELBOW

ONE 90

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.

ALCOVE

INSTALLATION

TOP VENT

ONE 90° ELBOW

B

18 in. (457 mm) required
when Passive Heat Side
Discharge Kit is installed.

F

COSMO32-IFT-B

COSMO36-IFT-B

COSMO42-IFT-B

Figure 3.6 Appliance Locations

14

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

Millimeters 1134 956 1603 383 438

Millimeters 1207 1067 1676 400 438

Millimeters 1283 1245 1816 495 438

A B C D E F

Inches 44-5/8 37-5/8 63-1/8

Inches 47-1/2 42 66 15-3/4 17-1/4

See Section 10.C for Alcove Installation

(Mantel and Wall Projection).

Inches 50-1/2 49 71-1/2 19-1/2 17-1/4

15-1/16 17-1/4

Framing

This appliance is designed to be recessed into combus­tible framing with non-combustible material pre-installed
on top and side. Drywall or combustible materials (mini­mum 1/2 inch thick) are designed to contact the non­combustible 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 horizon­tal strength and utilizing Jack or Trimmer stud fastened to
the King studs for vertical strength.

A

If elevating the appliance, the base of the appliance
should also be constructed in a similar manner to prevent
settling.

Refer to Figures 3.7, 3.8 and 3.9 for information regarding
framing when the Passive Heat Kit is installed. Install the
Passive Heat Kit per the instructions provided with the kit.

Note: Refer to Section 10 for important information
related to facing, drywall specications and decorative
barrier front information.

MEASURE FROM TOP

OF APPLIANCE OPENING



HEADER DEPTH: NOT TO EXCEED 3 INCHES

APPLIANCE MAY
BE INSTALLED
OFF OF FLOOR**

B

C

D

JACK (TRIMMER) STUD

KING STUD

A B C D E F G H I J K

Model

Size

32

36

42

mm 219 927 451 940 787 0 0 13 13 914 1445

mm 219 832 451 1067 787 0 0 13 13 914 1445

mm 219 832 451 1245 787 0 0 13 13 914 1445

Rough

Opening

(Vent Pipe)

in. 8-5/8 36-1/2 17-3/4 37 31 0 0 1/2 1/2 36 56-7/8

in. 8-5/8 32-3/4 17-3/4 42 31 0 0 1/2 1/2 36 56-7/8

in. 8-5/8 32-3/4 17-3/4 49 31 0 0 1/2 1/2 36 56-7/8

Rough

Opening

(Height)

Rough

Opening

(Depth)

F

G

NOTE: E & K dimensions will change if Passive Heat option is installed.
Reference the instructions included with the Passive Heat Kit.

MINIMUM FRAMING DIMENSIONS*

Rough

Opening

(Width)

Clearance

to Room

Ceiling

Combustible

Floor

Minimum

Hearth

Required

J

Behind

Appliance

I

Sides of

Appliance

H

Front of

Appliance

E

K

Clearance

to Ceiling

* Adjust framing dimensions for interior chase sheathing (such as sheetrock)
** If appliance is installed o󰀨 of oor, maintain required clearances to combustibles. Construct platform in accordance with local building codes.

Figure 3.7 Clearances to Combustibles

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

15

Framing Dimensions- Passive Heat Front Discharge (PH-FRT-LINEAR)

Front Discharge: Air conveyed into the room through one front discharge slot.

C

CHASE DETAIL

1-1/2 IN. (2 X 4 FRAMING)

0-3 IN.

2 IN. MIN.

1/2 IN. X 1/2 IN.
WIRE MESH**

A

TV

WARNING! Risk of Fire! Wire mesh required on

bottom of discharge opening (Dimension A) when
nished discharge opening is greater than 3 inch-

B

E

D

es. Secure mesh to top of framing.

ROOM CEILING

CHASE CEILING REQUIRED
WITHIN 3 IN. OF TOP OF OPENING

WIRE MESH**

= PASSIVE HEAT
DISCHARGE OPENING

= CHASE CEILING ZONE

APPLIANCE MAY BE INSTALLED
OFF OF FLOOR

FRONT DISCHARGE MINIMUM FRAMING DIMENSIONS

COSMO32-IFT-B

COSMO36-IFT-B

COSMO42-IFT-B

Inches 3-1/2 2 48 31-1/8 73-7/8 71-7/8

millimeters 89 51 1219 791 1876 1826

Inches 3-1/2 2 48 36-1/2 73-7/8 71-7/8

millimeters 89 51 1219 927 1876 1826

Inches 3-1/2 2 48 48-1/2 73-7/8 71-7/8

millimeters 89 51 1219 1232 1876 1826

A

TRIM KIT*

INSTALLED

(PHTRIM-LINEAR)

Required Height of

Discharge Opening

NO TRIM

KIT**

Height of

Discharge

Opening

B C D E

Clearance to

Top of

Discharge

Opening

Width of

Discharge

Opening

Clearance to

Top of Discharge

Opening From

Bottom of
Appliance

Clearance from

Bottom of Appliance

to Bottom of

Discharge Opening

* Measurement for Trim Kit = 3-1/2 in. + Additional Finishing Material Thickness. Figure 3.9 shows vent cover dimensions.

** Measurement without Trim Kit = 2 in. + Additional Finishing Material Thickness. If nished discharge opening height is

greater than 3 inches, wire mesh is required.

Figure 3.8 Passive Heat Front Discharge Framing Dimensions With and Without a Trim Kit

16

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

Passive Heat Front Discharge (PH-FRT-LINEAR) Trim Kit

Vent Cover Dimensions

C

PHTRIM-32LINEAR

PHTRIM-36LINEAR

PHTRIM-42LINEAR

A

B

D

FRONT DISCHARGE FRAMING DIMENSIONS

A

Inside Height Inside Width Outside Height Outside Width

Inches 2-9/16 31-1/16 5-5/8 33

millimeters 65 789 143 838

Inches 2-9/16 36-1/2 5-5/8 38-3/8

millimeters 65 927 143 975

Inches 2-9/16 48-1/2 5-5/8 50-3/8

millimeters

65 1232 143 1280

B C D

Figure 3.9 Passive Heat Front Discharge - Vent Cover Dimensions

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

17

Framing Dimensions - Passive Heat Side Discharge (PH-SIDE-LINEAR)

Side Discharge: Air conveyed into the room through two discharge registers,

one on each side of appliance.

WARNING! Risk of Fire! DO NOT place combustible
objects or combustible materials in non-combustible
zone. Appliance and combustible materials will overheat.

B

CHASE DETAIL

1-1/2 IN. (2 X 4 FRAMING)

CHASE CEILING ZONE

0-3 IN.

ROOM CEILING

CHASE CEILING REQUIRED WITHIN 3 IN.
OF TOP OF OPENING

DISCHARGE OPENING

E

A

D

= PASSIVE HEAT
DISCHARGE OPENING

= CHASE CEILING ZONE

APPLIANCE MAY BE INSTALLED
OFF OF FLOOR

Discharge

COSMO32-IFT-B
COSMO36-IFT-B
COSMO42-IFT-B

Inches 12-1/4 8-3/4 63-5/8 77-3/8 18

millimeters 311 222 1616 1965 457

C

SIDE DISCHARGE FRAMING DIMENSIONS

A B C D E

Height of

Opening

Width of

Discharge

Opening

Discharge Opening From

Minimum

Clearance to

Bottom of Appliance

Minimum

Clearance Bottom of

Appliance to Ceiling

Minimum
Clearance to
Combustible

Materials

Figure 3.10 Passive Heat Side Discharge Framing Dimensions

18

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

Framing Dimensions - Passive Heat Open Top Discharge (PH-FRT-LINEAR)

Open Top Discharge: Both sides and the top are open allowing air to be conveyed into the room.

WARNING! Risk of Fire! Mesh screen required on bottom of discharge opening when discharge
opening is greater than 3 inches. Secure mesh to top of framing.

C

A

B

OPEN TOP DISCHARGE MINIMUM FRAMING DIMENSIONS

B C

Clearance to

Width of Discharge

COSMO32-IFT-B

COSMO36-IFT-B

COSMO42-IFT-B

A*

Height of Discharge

Opening

Inches 2 48 31-1/8

millimeters 51 1219 791

Inches 2 48 36-1/2

millimeters 51 1219 927

Inches 2 48 48-1/2

millimeters 51 1219 1232

Discharge Opening

* Mesh screen required for front discharge or open top discharge passive heat installations with discharge

opening of 3 inches or greater.

Figure 3.11 Passive Heat Minimum Framing Dimensions Open Top Discharge

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

Opening

19

C. Constructing the Appliance Chase

NOTICE: Install appliance on hard metal or wood surfaces
extending full width and depth. DO NOT install directly on
carpeting, vinyl, or any combustible material other than
wood.

WARNING! Risk of Fire! Maintain specied 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 replace or chimney.

• Failure to maintain airspace may cause overheating and
a re.

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 restops and wall shield
restops 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.

NOTICE: Where required by code, install only sprinkler
heads with a sprinkler activation temperature classied
as Extra High.

• Sprinklers inside of chase: Keep sprinkler head away
from vent and chimney.

• Heat Management applications: Maintain 36 inches of
clearance to openings from which heat is discharged
such as convection slots, passive heat registers, heat
zone registers, etc. Refer to Section 6.B for Heat
Management options allowed for this appliance.

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 restops should be sealed with caulk with
a minimum of 300 ºF continuous exposure rating to
seal gaps. Gas line holes and other openings should
be sealed with caulk with a minimum of 300 ºF continu­ous exposure rating or stu󰀨ed 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.

Minimum height requirements for an exterior chase on a top­vented appliance are shown in Figure 3.12. Reference Fig­ure 4.5 for additional clearances.

A

3 IN. MIN.

COSMO32-IFT-B: 50-7/8 IN.
COSMO36-IFT-B: 56-7/8 IN.
COSMO42-IFT-B: 56-7/8 IN.

= REQUIRED MINIMUM VENTING OFF TOP
COSMO32-IFT-B = 0 IN.
COSMO36-IFT-B = 12 IN.
COSMO42-IFT-B = 12 IN.

* NOTE: If overhang “A” is less than 2 inches, clearance from top
of termination cap to bottom of overhang “B” MUST be a minimum
of 4 inches. If A is two inches or greater, see Figure 4.5,
“Minimum Clearances for Termination.”

Figure 3.12 Exterior Chase - Minimum Height Requirements

_B*

20

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

HORIZONTAL

4 4

Termination Location and Vent Information

A. Approved Pipe

WARNING! Risk of Fire, Delayed Ignition or Asphyxi-

ation. This appliance requires a separate vent. DO NOT

vent to a pipe serving any other appliance.

This appliance is only approved for use with the Hearth &
Home Technologies SLP venting system. Refer to Sec­tion 12.A for vent component information and dimensions.
Only use listed decorative termination caps/shrouds with
Hearth & Home Technologies approved venting systems.

DO NOT mix pipe, ttings or joining methods from di󰀨er­ent 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.

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, ttings or joining methods from di󰀨er­ent 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, ttings or joining methods from
di󰀨erent manufacturers. SLP-FLEX and SLP-FLEX7
venting cannot be interchanged.

SLP-FLEX (6-5/8 Inch): Venting may be used in any
venting conguration shown in the venting tables pro­vided that the horizontal vent length is reduced by 25%.

B. Vent Termination Minimum Clearances

WARNING

Fire Risk.
Maintain vent clearance to combustibles as

specied.

• 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 re.

OVERHANG

2 FT.

MIN.

GAS DIRECT VENT
TERMINATION CAP

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 4.1 Minimum Height From Roof to Lowest Discharge
Opening

20 INCHES MIN.

LOWEST

DISCHARGE

OPENING

H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING

X

12

ROOF PITCH

VERTICAL

WALL

IS X/ 12

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-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.

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

21

A B

6 in. (minimum) up to 20 in.

152 mm/508 mm

457 mm

20 in. and over 0 in. minimum

18 in. minimum

Wood or Fuel Oil

Termination Cap

B

A *

**Gas

Termination

Cap

* If using decorative cap cover(s), this distance may need to be increased.
Refer to the installation instructions supplied with the decorative cap cover.

** If two gas terminations are present, they may be level (B = 0 inches)
provided A is a minimum of 6 inches.

OVERHANG

X

WALL

Y

Figure 4.2 Staggered Termination Caps

CAUTION! Risk of Burns! Termination caps are HOT,
consider proximity to doors, trac 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.

• 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.

• Measure horizontal and vertical termination cap clearances
as noted in Figure 4.3 and Figure 4.4.

H=Measure Horizontal Distances from H
V=Measure Vertical Distances from V

V

CLEARANCE

V

= 6 IN.

H

H

For X and Y dimensions, see Figure 4.4.

Figure 4.4 Measure Horizontal and Vertical Termination
Clearance to Trapezoid Portion of Cap

Figure 4.3

22

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

C. Vent Terminal Clearances

C

V

B

J

V

B

D

V

V

F

B

V

A

G

M

= AREA WHERE TERMINAL IS NOT PERMITTED

X

= AIR SUPPLY INLET

V

= VENT TERMINAL

H or i

V

X

H

V

V

H

E

V

V

A

V

K

V

L

Electrical

Service

C

V

U.S.A. Installations: In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
Canadian Installations: In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.

U.S.A. CANADA

A Clearance above grade,veranda, porch, deck, or balcony 12 in. (305 mm) 12 in. (305 mm)

K

V

B Clearance to window or door that may be opened, or to permanently closed window

9 in. min.

(229 mm min.)

12 in. min.

(305 mm min.)

clearance below unventilated so󰀩t 18 in. (457 mm) 18 in. (457 mm)

clearance below ventilated so󰀩t 18 in. (457 mm) 18 in. (457 mm)

C

clearance below any vinyl so󰀩ts and electrical service 30 in. (762 mm) 30 in. (762 mm)

D clearance to outside corner 6 in. (152 mm) 6 in. (152 mm)

E clearance to inside corner 6 in. (152 mm) 6 in. (152 mm)

not to be installed above a gas meter/regulator assembly within 3 feet horizontally from

F

the center-line of the regulator

3 ft (914 mm) 3 ft (914 mm)

G clearance to gas service regulator vent outlet 3 ft (914 mm) 3 ft (914 mm)

clearance to non-mechanical air supply inlet to building or the combustion air inlet to

H

any other appliance termination (mechanical or non-mechanical)

9 in. (229 mm) 12 in. (305 mm)

clearance to a mechanical (powered) air supply inlet

I

***(All mechanical air intakes within 10 feet of a horizontal termination cap must be

3 ft (914 mm)*** 6 ft (1.8 m)

a minimum of 3 feet below termination.)

On public property: clearance above paved sidewalk or a paved driveway.

7 ft (2.1 m) 7 ft (2.1 m)**

J

**(A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings
and serves both dwellings.)

clearance from sides of electrical service 6 in. (152 mm) 6 in. (152 mm)

K

Location of the vent termination must not interfere with access to the electrical service.

clearance above electrical service 12 in. (305 mm) 12 in. (305 mm)

L

Location of the vent termination must not interfere with access to the electrical service.

clearance under veranda, porch, deck, balcony or overhang
*(Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of

M

two sides beneath the oor.)

vinyl or composite overhang 42 in. (1067 mm) 42 in. (1067 mm)

Figure 4.5 Minimum Clearances for Termination

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21

18 in. (457 mm) 12 in. (305 mm)*

23

D. Use of Elbows

Diagonal runs have both vertical and horizontal vent as­pects when calculating the e󰀨ects. Use the rise for the
vertical aspect and the run for the horizontal aspect. See
Figure 4.6.

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 inch
(216 mm) horizontal run and 8-1/2 inch (216 mm) vertical
run. A length of straight pipe is allowed between two 45º
elbows. See Figure 4.6.

Figure 4.7 shows the vertical and horizontal o󰀨sets for
SLP elbows.

Y

X

VERTICAL

EFFECTIVE

LENGTH

RUN

HORIZONTAL

SLP

Pipe

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

SLP12A 3 to 12 76 to 305

E󰀨ective Length Rise/Run

Inches Millimeters Inches Millimeters

2-1/8-4-1/4 54-108

2-1/8-8-1/2 54-216

RISE

Vent

Type

SLP 5-1/4 133 11-3/8 289

Inches Millimeters Inches Millimeters

X Y

X

X

Vent Type

SLP 11-1/4 286

Figure 4.7 Vertical and Horizontal O󰀨set for DVP and SLP Elbows

Inches Millimeters

X

Figure 4.6

24

Heat & Glo • COSMO32-IFT-B, COSMO36-IFT-B, COSMO42-IFT-B Installation Manual • 2619-980 Rev. L • 2/21