Section 1: Approvals And Codes; Appliance Certification; Installation Codes; High Altitude Installations - Heat & Glo TWILIGHT Installer's Manual

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Approvals and
Codes

Appliance Certification

The Heat-N-Glo Lifestyle Products fireplace models dis-
cussed in this Installers Guide have been tested to certifi-
cation standards and listed by the applicable laboratories.
Certification
Twilight
MODEL:
LABORATORY: Underwriters Laboratories
TYPE: Direct Vent Gas Fireplace
STANDARD: ANSI Z21.50•CGA2.22
ANSI Z21.50b-2000•CSA2.22b-2000
EXTERIOR WINDOW PERFORMANCE STANDARDS
LABORATORY: Stork Twin City Testing
STANDARD: ANSI/AAMA/NWWDA 101/I.S. 2-97
PERFORMANCE GRADES: F-R30* (45x37)
Air leakage does not exceed 0.3 cfm per square foot
at pressure differential of 1.57 lb per square foot per
ASTM E283-91.
The structural test pressure for wind loading
calculations exceeds the F-R/LC30 performance grade
withstanding design pressure of 50 lb per square foot
as tested per ASTM E330-96.
The Twilight has been carefully engineered to provide a
unique fireplace experience. Since it is different than any
other product on the market, care must be taken when
installing this fireplace so that our customer does not
experience undesirable performance or conditions.
1. Install the fireplace according to this Installer's Guide
paying particular attention to flashing and sealing
instructions.
2. In the cold northern climates pay attention to exposures
and prevailing wind conditions when locating the fireplace,
the same as you would for locating exterior windows
and doors.
The Twilight has the thermal characteristics of a high quality
window system. Temperatures near the fireplace will be
cooler than what is realized with a fully insulated wall.
Operation of the fireplace will eliminate any cool drafts and
will provide the room with a comfortable ambiance.
F-LC30* (45x37)

Installation Codes

The fireplace installation must conform to local codes. Before
installing the fireplace, 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.

High Altitude Installations

U.L. Listed gas appliances are tested and approved with-
out 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.
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