Desa CGS2718P, CGS2718N, CGS3124P, CGS3124P, CGS3124N, CLD3018PA, CLD3018NA, CLD3924PTA, CLD3924NTA Operation And Installation Manual page 8

INSTALLATION
8
Installation and Clearances (Cont.)
INSTALLATION
Continued
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 fire-
place opening is not needed. Go to Installing Damper
Clamp Accessory for Vented Operation , page 10.
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
noncombustible material behind it. Noncombustible material must
extend at least 8" up (for all models). If noncombustible material is
less than 12", you must install the fireplace hood accessory (24"
model only). See Figure 5 at right for minimum clearances.
IMPORTANT: If you cannot meet these minimum clearances, you
must operate heater with chimney flue damper open. Go to Install-
ing Damper Clamp Accessory for Vented Operation, page 10.
If Using Mantel
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
noncombustible material behind it. Noncombustible material must
extend at least 8 inches up (for all models). If noncombustible
material is less than 12", you must install the fireplace hood
accessory (24" model only). Even if noncombustible material is
more than 12", you may need the hood accessory to deflect heat
away from your mantel shelf. See Figure 5 and Figures 6 and 7 on
page 9 for minimum clearances.
IMPORTANT: If you cannot meet these minimum clearances, you
must operate heater with chimney flue damper open. Go to Install-
ing Damper Clamp Accessory for Vented Operation, page 10.
For more information, visit www.desatech.com
For more information, visit www.desatech.com
Noncombustible
Material Distance (A)
12" or more
Between 8" and 12"
Less than 8"
Heat Resistant
Material
Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.)
Above Fireplace
Requirements for
Safe Installation
Noncombustible material okay.
24" Model: Install fireplace hood
accessory (GA6050, GA6052,
or GA6053, see Accessories ,
page 32).
18" Model: Noncombustible
material okay.
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.
(A)
107068