Comfort Glow CGD3018N Owner's Operation And Installation Manual page 11

102990
INSTALLING
Contmued
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 no. combustible material behind it, Non
combustible material must extend at least 8 inches up (for all models). If non
combustible material is less than 12", you must install the fireplace hood acces-
sory (24" and 30" models only). 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 h_stalling Damper Clamp Acces-
sory for Vented Operation, page 13.
Non-Combustible
Material Distance (A)
12" or more
Between 8" and 12"
Less than 8"
Requirements for
Safe Installation
Non combustible material okay.
24" or 30" Models: Install fireplace hood acessory
(GA6050 or GA6052, see Accessories, page 33).
18" Model: Non combustable material okay.
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).
Minimum Non-
Combustible
Material
10" j Mantel Shelf
m
1
(A)
12" 20"
8" 14"
!
Minimum Non-
Combustible
Material Height
I
241/2" 271/2"
16314 ' 181/2 '
,m
Distances to
Underside of
Mantel
Underside of
Mantel Shelf
All minimum
distances are
in inches
Log Set
30" _ 24"/30" Models
20" _ 18" Model
Top of Fireplace
Opening
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. Continued Elm