6
Appliance Certification
The Heat-N-Glo appliance models discussed in this
Installers Guide
have been tested to certification standards
and listed by the applicable laboratories.
Certification
MODEL:
CFX-ZC
LABORATORY:
Underwriters Laboratories
TYPE:
Direct Vent Gas Fireplace Heater
STANDARD:
ANSI Z21.88•CSA2.33•UL307B
Installation Codes
The appliance installation must conform to local codes.
Before installing the appliance, consult the local building
code agency to ensure that you are in compliance with all
applicable codes, including permits and inspections.
In the absence of local codes, the fireplace installation must
conform to the National Fuel Gas Code ANSI Z223.1 (in the
United States) or the CAN/CGA-B149 Installation Codes
(in Canada). The appliance must be electrically grounded
in accordance with local codes or, in the absence of local
codes with the National Electric Code ANSI/NFPA No. 70
(in the United States), or to the CSA C22.1 Canadian Electric
Code (in Canada).
These models may be installed in a bedroom or bed-sitting
room in the U.S.A. and Canada.
Approvals and
Codes
High Altitude Installations
U.L. Listed gas appliances are tested and approved without
requiring changes for elevations from 0 to 2,000 feet in the
U. S. A. and in Canada.
When installing this appliance at an elevation above 2,000
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 4,500 feet
(in Canada), check with local authorities.
Heat-N-Glo Quality
Systems registered
by SGS ICS
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