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Heatilator • GBST4336I, GBFL4136I • 2135-900 Rev. D • 11/08
B. Tempered Glass Specifi cations
Hearth & Home Technologies appliances manufactured
with tempered glass may be installed in hazardous loca-
tions such as bathtub enclosures as defi ned by the Con-
sumer Product Safety Commission (CPSC). The tempered
glass has been tested and certifi ed to the requirements
of ANSI Z97.1 and CPSC 16 CFR 1202 (Safety Glazing
Certifi cation Council SGCC# 1595 and 1597. Architectur-
al Testing, Inc. Reports 02-31919.01 and 02-31917.01).
This statement is in compliance with CPSC 16 CFR Sec-
tion 1201.5 “Certifi cation and labeling requirements”
which refers to 15 U.S. Code (USC) 2063 stating “…Such
certifi 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 Specifi cationsA. Appliance Certifi cation
E. Non-Combustible Materials Specifi 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 and UL763 shall be
considered non-combustible materials.
F. Combustible Materials Specifi cation
Materials made of or surfaced with wood, compressed pa-
per, plant fi bers, plastics, or other material that can ignite
and burn, whether fl ame proofed or not, or plastered or
unplastered shall be considered combustible materials.
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.
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: Reduce input rate 10% for elevations
between 2000 feet and 4500 feet. Above 4500 feet,
consult local gas utility.
Check with your local gas utility to determine proper orifi ce
size.
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Listing and Code Approvals
MODELS: GBST4336I, GBFL4136I
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: B-Vent Gas Appliance
STANDARD: ANSI Z21.50-2007 • CSA 2.22-2007
Models
(U.S. or Canada)
Maximum
Input
BTU/h
Minimum
Input
BTU/h
Orifi ce
Size
(DMS)
GBST4336I (NG)
GBFL4136I (NG)
US
(0-2000 FT)
37,000 26,000 32
CANADA
(2000-4500 FT)
33,300 23,400 33
GBST4336I (LP)
GBFL4136I (LP)
US
(0-2000 FT)
36,000 27,000 50
CANADA
(2000-4500 FT)
32,400 24,300 51
This product is listed to ANSI standards for “Vented Gas
Fireplaces” and “Gas Fired Appliances for Use at High
Altitudes”.
May be installed in a sleeping room when the provisions
for combustion, ventilation and dilution air are met per the
requirements of ANSI 223.1/NFPA 54 National Fuel Gas
Code. In Canada, installation in a sleeping room requires
installation with a thermostat certifi ed for use with this prod-
uct. Consult your local authorities having jurisdiction.
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.
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 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.