ComfortFlame.US.com
900555-00 NC
7
INSTALLATION
Figure 3 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air
Ventilated
Crawl Space
To
Crawl
Space
To Attic
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or ducts. You must
provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor. Connect these items directly to the out-
doors or spaces open to the outdoors. These spaces include attics
and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/
NFPA 54, SAir for Combustion and Ventilation
for required size of
ventilation grills or ducts.
IMPORTANT:
Do not provide openings for inlet or outlet air into attic
if attic has a thermostat-controlled power vent. Heated air entering
the attic will activate the power vent.
AIR FOR COMBUSTION AND VENTILATION
Continued
NOTICE: This heater is intended for use as supple-
mental heat. Use this heater along with your primary
heating system. Do not install this heater as your
primary heat source. If you have a central heating
system, you may run system’s circulating blower
while using heater. This will help circulate the heat
throughout the house. In the event of a power outage,
you can use this heater as your primary heat source.
NOTICE: State or local codes may only allow op-
eration of this appliance in a vented configuration.
Check your state or local codes.
WARNING: A qualified service person must install
heater. Follow all local codes.
WARNING: Before installing in a solid fuel-burning
fireplace, the chimney flue and firebox must be
cleaned of soot, creosote, ashes and loose paint by
a qualified chimney cleaner. Creosote will ignite if
highly heated. A dirty chimney flue and firebox may
create and distribute soot within the house. Inspect
chimney flue for damage. If damaged, repair flue
before operating heater.
WARNING: Seal any fresh air vents or ash clean-
out doors located on floor or wall of fireplace. If
not, drafting may cause pilot outage or sooting.
Use a heat-resistant sealant. Do not seal chimney
flue damper.
WARNING: Never install the heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, clothing or other flam-
mable objects are less than 42" from front, top or
sides of heater
• in high traffic areas
• in windy or drafty areas
CAUTION: This heater creates warm air currents.
These currents move heat to wall surfaces next to
heater. Installing heater next to vinyl or cloth wall
coverings or operating heater where impurities (such
as, but not limited to, tobacco smoke, aromatic
candles, cleaning fluids, oil or kerosene lamps, etc.)
in the air exist, may discolor walls or cause odors.
IMPORTANT:
Vent-free heaters add moisture to the air.
Although this is beneficial, installing heater in rooms
without enough ventilation air may cause mildew to
form from too much moisture. See
Air for Combustion
and Ventilation
,
page 5
.
