Astria.us.com
900634-00B
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Installation
Continued
Carefully follow the instructions below. This will ensure safe instal-
lation into a masonry, UL127-listed manufactured fireplace or listed
outdoor firebox.
Minimum Clearances For Side Combustible Material,
Side Wall and Ceiling
A. Clearances from the side of the fireplace cabinet to any combus-
tible material and wall should follow diagram in Figure 2.
Example: The face of a mantel, bookshelf, etc. is made of combus-
tible material and protrudes 3-1/2" from the wall. This combustible
material must be 4" from the side of the fireplace cabinet (see
Figure 2).
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 2 - Minimum Clearance for Combustible to Wall
*Minimum 16" from Side Wall
*
Example
If Using Mantel
You must have noncombustible material(s) above the fireplace open-
ing. 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. Even if noncombustible
material is more than 12", you may need the hood accessory to deflect
heat away from your mantel shelf. See Figure 3 and Figures 4 and
5, Page 7, for minimum clearances.
IMPORTANT: If you cannot meet these minimum clearances, you must
operate appliance with chimney flue damper open. Go to Installing
Damper Clamp Accessory for Vented Operation, Page 8.
Heat Resistant
Material
(A)
Figure 3 - Heat Resistant Material (Slate, Marble, Tile, etc.)
Above Fireplace
Noncombustible
Material Distance (A)
Requirements for Safe Installation
12" or more
Noncombustible material OK.
Between 8" and 12"
Install fireplace hood accessory (GA6050 -
see Accessories, Page 23).
Less than 8"
Noncombustible material must be extend-
ed to at least 8". See Between 8" and 12",
above. If you cannot extend material, you
must operate appliance with flue damper
open.
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. See Figure 3 for minimum
clearances.
Maintain adequate clearances for accessibility for purposes of servicing
and proper operation.
