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INSTALLATION
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 log heater. This will help circulate the
heat from your log heater throughout the house. In
the event of a power outage, you can use this heater
as your primary heat source.
WARNING: A qualified service person must in-
stall heater. Follow all local codes.
NOTICE: State or local codes may only allow opera-
tion of this appliance in a vented configuration. Check
your state or local codes.
WARNING: Before installing in a solid fuel burn-
ing 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 may create and
distribute soot within house. Inspect chimney flue
and firebox for damage. If damaged, operate heater
with flue damper closed.
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 unless installed as a
vented appliance (Variable Manually-Controlled
Models Only) (see page 10)
• in a recreational vehicle
• where curtains, furniture, clothing, or other flam-
mable objects are less than 42 inches from the
front, top, or sides of the heater
• in high traffic areas
• in windy or drafty areas
For more information, visit www.desatech.com
For more information, visit www.desatech.com
107124-01E
Installation and Clearances for Vent-Free Operation
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 venti-
lation air may cause mildew to form from too much moisture. See
Air for Combustion and Ventilation, pages 4 through 6.
CHECK GAS TYPE
Use only propane/LP gas. If your gas supply is not propane/LP, do
not install heater. Call dealer where you bought heater for proper
type heater.
INSTALLATION AND CLEARANCES
(Vent-Free Operation Only)
WARNING: Maintain the minimum clearances. If
you can, provide greater clearances from floor, ceil-
ing, and adjoining wall.
MINIMUM FIREPLACE CLEARANCE
TO COMBUSTIBLE MATERIALS
Log Size
18", 24", 30"
LOG SIZING REQUIREMENTS
Minimum Firebox Size
Log
Size Height Depth Width Width
18"
17"
24"
17"
30"
17"
*Measured at 14" depth
Carefully follow the instructions below. This will ensure safe
installation into a masonry, UL127-listed manufactured fireplace,
or certified vent-free firebox.
INSTALLATION
Check Gas Type
Side Wall
Ceiling
16"
42"
Front Rear*
14"
24"
20"
14"
28"
21"
14"
34"
24"
7 7
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