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Listing and Code Approvals
A. Appliance Certifi cation
MODEL: Twilight-II-B
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Appliance
STANDARD: ANSI Z21.50-2003 • CSA2.22-M03 • UL307B
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
Recreational Vehicles", and "Gas Fired Appliances for
Use at High Altitudes".
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 supplemen-
tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
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. Thermal Performance Data
Model: Twilight-II-B
Sound Transmission
Thermal Resistance
Class (STC)
(R Value)
27
0.8hr-sq ft-ºF/BTU
6
Outdoor Lifestyles by Hearth & Home Technologies, Inc. • Twilight-II-B • 2108-900 Rev. V • 5/11
Thermal Conductivity
(K Value)
1.25 BTU-in/hr-sq ft-ºF
D. Air Infi ltration, Water Resistance and
Structural Tests
T
he Hearth & Home Technologies Twilight-II-B Indoor/
Outdoor Appliance unit was tested to the following ASTM
standards at the Stork Twin City Testing laboratory.
Air infi ltration test ASTM:E283-(04). The sample was test-
ed at 1.57 psf (equivalent to a 25-mph windload). Water
resistance test ASTM:E331-00. The test specimen was
tested at the requested test pressures of 8.0 & 25.0 psf.
Structural test ASTM:E330-02. The unit was tested to a
design pressure of 50-psf, a test pressure of 75-psf.
Test Results
Air Infi ltration
Model
(ASTM E283)
Twilight-II-B
0.07CFM/ft2
Indoor/Outdoor
E. BTU Specifi cations
Model
U.S. (0-2000 FT) or
Canada (2000-4500 FT)
US
Twilight-II-B (NG)
CAN
US
Twilight-II-B (LP)
CAN
Water Resistance
Structural Load
(ASTM E331)
(ASTM E330)
No leakage
No Blowout
@ 8psf & 25psf
@ 75psf
Input
Orifi ce Size
BTU/h
(DMS)
38,000
32
34,200
33
37,000
50
33,300
51
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