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Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
4
A. Appliance Certification
NOTE: 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 supplemen-
tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
Listing and Code Approvals
C. High Altitude Installations
U.L. Listed gas appliances are tested and approved without
requiring changes for elevations from 0 to 2000 feet in the
U.S.A. and Canada.
When installing this appliance at an elevation above 2000
feet, it may be necessary to decrease the input rating by
changing the existing burner orifice to a smaller size. Input
rate should be reduced by 4% for each 1000 feet above a
2000 foot elevation in the U.S.A., or 10% for elevations
between 2000 and 4500 feet in Canada. If the heating value
of the gas has been reduced, these rules do not apply. To
identify the proper orifice size, check with the local gas
utility.
If installing this appliance at an elevation above 4500 feet
(in Canada), check with local authorities.
B. BTU Specifications
1
MODEL: CERONA-36, CERONA-42
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Fireplace Heater
STANDARD: ANSI Z21.88b-2005•CSA2.33b-M2005•UL307B
Model
(U.S. or Canada)
Maximum
Input BTUH
Minimum
Input BTUH
Orifice
Size
(DMS)
Cerona-36 (NG)
US
(0-2000 FT)
37,500 25,000 32
CAN
(2000-4500 FT)
33,750 22,300 33
Cerona-42 (NG)
US
(0-2000 FT)
45,000 32,000 29
CAN
(2000-4500 FT)
40,500 28,800 30
WARNING
Do NOT use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the control
system and any gas control which has been under water.
This product is listed to ANSI standards for “Vented Gas
Appliance Heaters” and applicable sections of “Gas Burn-
ing Heating Appliances for Manufactured Homes and Rec-
reational Vehicles”, and “Gas Fired Appliances for Use at
High Altitudes”.
Heat & Glo Quality Systems
registered by SGS ICS
This model may be installed in a bedroom or bed-sitting
room in the U.S.A. and Canada.
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, Stan-
dard Test Method for Behavior of Materials in a Verti-
cal Tube Furnace at 750
o
C, shall be considered non-com-
bustible 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 whether plastered
or unplastered shall be considered combustible materials.