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107553
OWNER’S MANUAL
For more information, visit www.desatech.com
INSTALLATION
WARNING: A qualified ser-
vice 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 quali-
fied chimney cleaner. Creosote
will ignite if highly heated. A dirty
chimney flue may create and dis-
tribute soot within the house. In-
spect chimney flue for damage. If
damaged, operate heater with flue
damper closed.
WARNING: Seal any fresh air
vents or ash clean-out doors lo-
cated 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 un-
less installed as a vented ap-
pliance, see page 10.
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 42 inches
from the front, top, or sides of
the 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, to-
bacco 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 mois-
ture 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 Com-
bustion and Ventilation, pages 4 through 6.
CHECK GAS TYPE
Use only natural gas. If your gas supply is not
natural gas, do not install heater. Call dealer
where you bought heater for proper type heater.
NOTICE: State or local codes may
only allow operation of this appli-
ance in a vented configuration.
Check your state or local codes.
WARNING: Make sure the se-
lector switch is in the OFF posi-
tion before installing heater.
NOTICE: This heater is intended
for use as supplemental heat. Use
this heater along with your pri-
mary heating system. Do not in-
stall 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 circu-
late the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
INSTALLATION AND
CLEARANCES
(Vent-Free Operation Only)
WARNING: Maintain the mini-
mum clearances. If you can, pro-
vide greater clearances from
floor, ceiling, and adjoining wall.
Continued
LOG SIZING REQUIREMENTS
Minimum Firebox Size
Log Front Rear
Size Height Depth Width Width*
18" 17" 13" 28" 20"
24" 17" 13" 28" 21"
30" 17" 13" 34" 24"
MINIMUM FIREPLACE
CLEARANCE TO
COMBUSTIBLE MATERIALS
Log Size Side Wall Ceiling
ALL 16" 42"
*Measured at 13" depth
Carefully follow the instructions below. This
will ensure safe installation into a masonry,
UL127-listed manufactured fireplace, or
listed vent-free firebox.
Minimum Clearances for Side
Combustible Material, Side Wall,
and Ceiling
A. Clearances from the side of the fireplace
cabinet to any combustible material and
wall should follow diagram in Figure 4.
Example:
The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3
1
/2" from the wall. This com-
bustible material must be 4" from the side
of the fireplace opening (see Figure 4).
Note:
When installing your gas logs into
a manufactured firebox, follow firebox
manufacturer’s instructions for minimum
clearances to combustible materials.
B. Clearances from the top of the fireplace
opening to the ceiling should not be less
than 42 inches.
Figure 4 - Minimum Clearance for Side Com-
bustible Material, Side Wall, and Ceiling
*Minimum 16 inches from Side Wall
*
Example