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INSTALLING
Continued
Minimum Non Combustible Material Clearances
If Using Mantel
You must have non combustible material(s) above the fireplace opening. Non
combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch
thick. With sheet metal, you must have non combustible material behind it. Non
combustible material must extend at least 8 inches up. If non combustible material
is less than 12", you must install the fireplace hood accessory. Even if non
combustible material is more than 12", you may need the hood accessory to
deflect heat away from your mantel shelf. See chart below and Figures 6 and 7 for
minimum clearances.
IMPORTANT:
If you cannot meet these minimum clearances, you must operate
heater with chimney flue damper open. Go to Installing Damper Clamp Acces-
sory for Vented Operation, page 13.
Figure 6 - Minimum Mantel Clearances Without Using Hood
If above minimum clearances are not met, you must have a hood. Follow
minimum clearances shown in Figure 7 when using hood.
Non-Combustible Requirements for
Material Distance (A) Safe Installation
12" or more Non combustible material OK.
Between 8" and 12" Install fireplace hood acessory (GA6050 or GA6052,
see
Accessories,
page 29).
Less than 8" Non combustible 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.
Mantel Clearances
If you meet minimum clearance between mantel shelf and top of fireplace open-
ing, a hood is not required (see Figure 6).
Continued
Minimum Non-
Combustible
Material
Minimum Non-
Combustible
Material Height
Distances to
Underside of
Mantel
Top of Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
12"
(A)
20" 24
1
/2
" 27
1
/2
" 30"
All minimum
distances are
in inches
Log Set
24" Model
2
1
/2
"
6"
8"
10"