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111826-04E
10
INSTALLATION
Continued
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
opening to the ceiling should not be less
than 42".
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example
Minimum Noncombustible Material
Clearances
If Not Using Mantel
Note: If using a mantel proceed to If Using
Mantel
. If not using a mantel, follow these
instructions
.
You must have noncombustible material(s)
above the fireplace opening. Noncombustible
materials (such as slate, marble, tile, etc.) must
be at least 1/2" 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 for minimum clearances.
Heat Resistant
Material
(A)
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Noncombustible
Material Distance
(A)
Requirements for
Safe Installation
12" or more
Noncombustible mate-
rial OK.
Between 8" and 12" 24" or 30" Models:
Install fireplace hood
accessory (GA6050,
GA6052 or GA6053 see
Accessories
, page 26).
18" Model: Noncom-
bustible material OK.
Less than 8"
Noncombustible mate-
rial 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.
If Using Mantel
You must have noncombustible material(s)
above the fireplace opening. Noncombus
-
tible materials (such as slate, marble, tile,
etc.) must be at least 1/2" thick. With sheet
metal, you must have noncombustible ma
-
terial 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). Even if noncombustible material
is more than 12", you may need the hood ac
-
cessory to deflect heat away from your mantel
shelf. See Figure 5 and Figures 6 and 7, page
11, for minimum clearances.
IMPORTANT:
If you cannot meet these mini-
mum clearances, you must operate heater
with chimney flue damper open. Go to
Install-
ing Damper Clamp Accessory for Vented
Operation
, page 12.