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AIR FOR COMBUSTION AND VENTILATION
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills
or ducts. You must provide two permanent open-
ings: one within 12" of the ceiling and one within
12" of the floor. Connect these items directly to
the outdoors or spaces open to the outdoors.
These spaces include attics and crawl spaces.
Follow the National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Air 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 thermo-
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri-
mary 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 operation of this appli-
ance in a vented configuration.
Check your state or local codes.
WARNING: A qualified ser-
vice person must install heater.
Follow all local codes.
WARNING: If hand-held
remote accessory has been in-
stalled, make sure the selector
switch is in the OFF position
before installing heater.
8
Continued
Outlet
Air
Inlet
Air
Figure 3 - Ventilation Air from Outdoors
INSTALLATION
a solid fuel burning fireplace, the
chimney flue and firebox must be
cleaned of soot, creosote, ashes
and loose paint by a qualified chim-
ney cleaner. Creosote will ignite
if highly heated. A dirty chimney
flue may create and distribute soot
within the house. Inspect chimney
flue for damage. If damaged, repair
flue before operating heater.
air vents or ash clean-out doors
located on floor or wall of fire-
place. If not, drafting may cause
pilot outage or sooting. Use a
heat-resistant sealant. Do not
seal chimney flue damper.
• in a bedroom or bathroom
unless installed as a vented
appliance, see page 10.
• in a recreational vehicle
• where curtains, furniture, cloth-
ing or other flammable objects
are less than 42" from the front,
top or sides of the heater
• in high traffic areas
• in windy or drafty areas
www.desatech.com
Ventilated
Outlet
Attic
Air
Inlet Air
WARNING: Before installing in
WARNING: Seal any fresh
WARNING: Never install heater
To Attic
To
Crawl
Space
Ventilated
Crawl Space
119921-01F
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