Desa CCL3018NR EN - Manual (Page 11)

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Minimum
Noncombustible
Material
8"
Min.
12" 15" 18"
All minimum
distances are
in inches
Log Set
18", 24",
30" Models
20"
2 1/2 "
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood
(GA6050,
GA6052)
Top of
Fireplace
Opening
Underside
of Mantel
Shelf
Mantel Shelf
INSTALLATION
Continued
Figure 7 - Minimum Mantel Clearances
When Using Hood
All
Models
NOTICE: If your installation does
not meet the minimum clear-
ances shown, you must do one
of the following:
• operate the logs only with the
flue damper open
• raise the mantel to an accept-
able height
• remove the mantel.
FLOOR CLEARANCES
A. If installing appliance on the floor level, you
must maintain the minimum distance of 14"
to combustibles (see Figure 8).
B. If combustible materials are less than 14" to
the fireplace, you must install appliance at
least 5" above the combustible flooring (see
Figure 9).
14"
Min.
Combustible
Material
Noncombustible Material
Hearth
5"
Min.
Combustible
Material
Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring
Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level
INSTALLING DAMPER CLAMP
ACCESSORY FOR VENTED
OPERATION
Note: When used as a vented heater, appliance
must be installed only in a solid-fuel burning
fireplace with a working flue and constructed of
noncombustible material.
If you choose to use your heater as a manually-
controlled model (no remote control installed),
you may use this heater as a vented product. There
are three reasons for operating your heater in the
vented mode.
1. The fireplace does not meet the clearance
to combustibles requirements for vent-free
operation.
2. State or local codes do not permit vent-free
operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you, you
must permanently open chimney flue damper. You
must install the damper clamp accessory (to order,
see Accessories, page 34). This will insure vented
operation (see Figure 10, page 12). The damper
clamp will keep damper open. Installation instruc-
tions are included with clamp accessory.
See chart below for minimum permanent flue
opening you must provide. Attach damper clamp
so the minimum permanent flue opening will be
maintained at all times.
Chimney Minimum Permanent
Height (ft.) Flue Opening (sq. in.)
6' to 15' 39 sq. inches
15' to 30' 29 sq. inches
Area of Various Standard Round Flues
Diameter (inches) Area (sq. inches)
5 20
6 29
7 39
8 51