www.desatech.com
119678-01C
9
MINIMUM FIREPLACE CLEARANCE TO
COMBUSTIBLE MATERIALS
Side Wall 16", Ceiling 42", Floor 5"
LOG SIZING REQUIREMENTS
Log
Size
Minimum Firebox Size
Height
Depth
Front
Width
Rear*
Width
18"
17"
14"
20"
14"
24"
17"
14"
26"
18"
*Measured at 14" depth
WARNING: Never install the
heater
• in a bedroom or bathroom
unless installed as a vented
appliance, see page 12
• 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
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall sur-
faces 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 flu
-
ids, 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 Ventila-
tion
, page 6.
CHECK GAS TYPE
Use the correct type of gas (natural or
propane/LP). If your gas supply is not the
correct gas type, do not install heater. Call
dealer where you bought heater for proper
type heater.
WARNING: This appliance
is for either natural gas or pro
-
pane/LP gas but not both. Gas
type is indicated on the rating
plate Field conversion is not
permitted.
INSTALLATION
Continued
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 Combus
-
tible Material, Side Wall and Ceiling
A. Clearances from side of 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 cabinet (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 top of fireplace opening
to ceiling should not be less than 42".
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example
INSTALLATION AND CLEARANCES
FOR VENT-FREE OPERATION
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
floor, ceiling and adjoining wall.
