Desa CDR3924NT Owner's Operation And Installation Manual page 9

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
FOR vENT-FREE OpERATION
WARNING: Maintain the
minimum clearances. If possible,
provide greater clearances from
floor, ceiling and adjoining wall.
LOG SIZING REQUIREMENTS
Minimum Firebox
Height Depth
17" 14"
Minimum Firebox with Blower
17" 14"
* Measured at 14" 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
Example
*Minimum 16" from Side Wall
Figure 4 - Minimum Clearance for
Combustible to Wall
122270-01D
INSTALLATION
Front Rear
Width Width *
28" 20
1
34" 22
3
" from the wall. This com-
www.desatech.com
Continued
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 the top of the fireplace
opening to the ceiling should not be less
than 42".
Minimum Noncombustible Material
Clearances
If Not Using Mantel
Note: If using a mantel proceed to If Using
Mantel, page 10. If not using a mantel, follow
the information on this page.
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
Noncombustible
/ "
4
Material Distance (A)
12" or more
/ "
8
Between 8"
Less than 8"
*
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Requirements for
Safe Installation
Noncombustible
material okay.
Install fireplace hood
and 12" accessory
(GA6050, GA6052 or
GA6053 see Acces-
sories, page 25).
Noncombustible
material must be
extended to at least
8". See Between 8"
and 12", above. If
you cannot extend
material, you must
operate heater with
flue damper open.
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