ComfortFlame.US.com
900559-00 NC
5
There are four optional remote controls that can be purchased
separately:
• wall switch
• hand-held ON/OFF remote
• wall thermostat
WARNING: This heater shall not be installed in a
room or space unless the required volume of indoor
combustion air is provided by the method described
in the
National Fuel Gas Code, ANSI Z223.1/NFPA 54,
the
International Fuel Gas Code,
or applicable local
codes. Read the following instructions to ensure proper
fresh air for this and other fuel-burning appliances in
your home.
OPTIONAL REMOTE CONTROL ACCESSORIES
• hand-held thermostat remote
See
Accessories
,
page 32
.
The wall thermostat or hand-held thermostat may not be used where
vented decorative listing is required.
OPERATION
This heater is clean burning. It requires no outside venting. There is
no heat loss out a vent or up a chimney. Heat is generated by both
realistic fl ames and glowing coals. This heater is designed for vent-free
operation with fl ue damper closed. It has been tested and approved
to the ANSI Z21.11.2 standard for unvented heaters. State and local
codes in some areas prohibit the use of vent-free heaters. This heater
may also be operated as a vented decorative (ANSI Z21.60) product
by opening the fl ue damper.
PRODUCT FEATURES
SAFETY DEVICE
This heater has a pilot with an Oxygen Depletion Sensing (ODS)
safety shutoff system. The ODS/pilot is a required feature for vent-
free room heaters. The ODS/pilot shuts off the heater if there is not
enough fresh air.
ELECTRONIC IGNITION SYSTEM
This heater has an electronic igniter to light heater fuel supply.
AIR FOR COMBUSTION AND VENTILATION
Today’s homes are built more energy effi cient than ever. New materials,
increased insulation and new construction methods help reduce heat
loss in homes. Homeowners weather strip and caulk around windows
and doors to keep the cold air out and the warm air in. During heating
months, Homeowners want their homes as airtight as possible.
While it is good to make your home energy effi cient, your home
needs to breathe. Fresh air must enter your home. All fuel-burning
appliances need fresh air for proper combustion and ventilation.
Exhaust fans, some fi replaces, clothes dryers and some fuel-burning
appliances draw air from the house to operate. You must provide ad-
equate fresh air for these appliances. That will ensure proper venting
of vented fuel-burning appliances.
PROVIDING ADEQUATE VENTILATION
The following are excerpts from
National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation
classifi cations:
1. Unusually Tight Construction
2. Unconfi ned Space
3. Confi ned Space
The information on
pages 5-7
will help you classify your space and
provide adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough
fresh air for combustion and ventilation. However, in buildings of
unusually tight construction, you must provide additional fresh air.
Unusually tight construction is defi ned as construction where:
a. walls and ceilings exposed to the outside atmosphere have a
continuous water vapor retarder with a rating of one perm (6 x
10
-11
kg per pa-sec-m
2
) or less with openings gasketed or sealed
and
b. weather stripping has been added on openable windows and
doors and
c. caulking or sealants are applied to areas such as joints around
window and door frames, between sole plates and fl oors, be-
tween wall-ceiling joints, between wall panels, at penetrations
for plumbing, electrical and gas lines and at other openings.
If your home meets all three criteria above, you must provide ad-
ditional fresh air. See
Ventilation Air From Outdoors
,
page 7
.
If your home does not meet all three criteria above, proceed to
De-
termining Fresh-Air Flow For Heater Location
,
page 6
.
Confi ned and Unconfi ned Space
The National Fuel Gas Code, ANSI Z223.1/NFPA54 allows two meth-
ods for determining whether the space in which the heater is being
installed is confi ned or unconfi ned space. The standard method de-
fi nes a confi ned space as a space whose volume is less than 50 cubic
feet per 1,000 Btu/hr (4.8 m
3
per kw) of the aggregate input rating of
all appliances installed in that space and an unconfi ned space as a
space whose volume is not less than 50 cubic feet per 1,000 Btu/hr
(4.8 m
3
per kw) of the aggregate input rating of all appliances installed
in that space. Rooms communicating directly with the space in which
the appliances are installed*, through openings not furnished with
doors, are considered a part of the unconfi ned space.
Where the air infi ltration rate of a structure is known, the Known Air
Infi ltration Rate Method may be used. Follow The National Fuel Gas
Code, ANSI Z223.1/NFPA 54 to use this method to determine if the
space is confi ned or unconfi ned.
* Adjoining rooms are communicating only if there are doorless
passageways or ventilation grills between them.
