Desa CCL3924NR Owner's Operation And Installation Manual page 10

CHECK GAS TyPE
Use the correct gas type (natural or propane/
LP) for your unit. If your gas supply is not cor-
rect, do not install heater. Call dealer where
you bought heater for proper type heater.
WARNING: This appliance is
equipped for either natural gas
or propane/LP gas but not both.
Gas type is indicated on the rat-
ing plate. Field conversion is not
permitted.
INSTALLATION AND CLEARANCES
(Vent-Free Operation Only)
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
floor, ceiling and adjoining wall.
MINIMUM FIREPLACE CLEARANCE
TO COMBUSTIBLE MATERIALS
Side Wall 16"
LOG SIZING REQUIREMENTS
Minimum Firebox
Log
Size Height Depth
24" 17"
30" 17"
* 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 Combus-
tible 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
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.
10
INSTALLATION
Ceiling: 42"
Front
Width
13" 28"
13" 34"
" from the wall. This com-
www.desatech.com
Continued
B. Clearances from top of fireplace opening
to ceiling should not be less than 42".
NOTICE: Manual control heaters
may be used as a vented product.
If so, you must always run heater
with chimney flue damper open.
If running heater with damper
open, noncombustible material
above fireplace opening is not
needed. Go to Installing Damper
Clamp Accessory for Vented
Operation, page 12.
*Minimum 16" from Side Wall
Figure 4 - Minimum Clearance for
Minimum Noncombustible Material
Rear *
Clearances
Width
If Not Using Mantel
21"
Note: If using a mantel, proceed to If Using
24"
Mantel, page 11. If not using a mantel, follow
the information below.
You must have noncombustible material(s)
above the fireplace opening. Noncombustible
materials (such as slate, marble, tile, etc.)
must be at least 1/2" thick. With sheet metal,
you must have noncombustible material be-
hind it. Noncombustible material must extend
at least 8" up. If noncombustible material is
less than 12", you must install the fireplace
hood accessory. See Figure 5, page 11, for
minimum clearances.
IMPORTANT: If you cannot meet these mini-
mum clearances, you must operate heater
with chimney flue damper open. Go to Install-
ing Damper Clamp Accessory for Vented
Operation, page 12.
Example
Combustible to Wall
*
111161-01K