Desa Tech CCL3018NR - Manual (Page 9)

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INSTALLATION
Continued
WARNING: This appliance
is equipped for (natural or pro-
pane/LP) gas. 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" Ceiling: 42"
LOG SIZING REQUIREMENTS
Minimum Firebox
Log Front Rear *
Size Height Depth Width Width
18" 17" 13" 28" 20"
24" 17" 13" 28" 21"
30" 17" 13" 34" 24"
* 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 cabi-
net 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 pro-
trudes 3
1 /
2
" from the wall. This combustible
material must be 4" from the side of the fire-
place 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 open-
ing to the ceiling should not be less than 42
inches.
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16 inches from Side Wall
*
Example
NOTICE: Manual control heaters
may be used as a vented prod-
uct. If so, you must always run
heater with chimney flue damper
open. If running heater with
damper open, noncombustible
material above fireplace open-
ing is not needed. Go to
Install-
ing Damper Clamp Accessory for
Vented Operation, page 11.
Minimum Noncombustible Material
Clearances
If Not Using Mantel
Note:
If using a mantel, proceed to If Using Mantel.
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 inch
thick. With sheet metal, you must have noncombus-
tible material behind it. Noncombustible material
must extend at least 8" up (for all models). If non-
combustible material is less than 12", you must in-
stall the fireplace hood accessory (24" and 30" mod-
els only). See Figure 5 for minimum clearances.
IMPORTANT:
If you cannot meet these minimum
clearances, you must operate heater with chim-
ney flue damper open. Go to Installing Damper
Clamp Accessory for Vented Operation, page 11.