
INSTALLING
Continued
10
Minimum Non Combustible Material Clearances
If Not Using Mantel
Note: If using a mantel, go to page 11. If not using a mantel, follow the informa- tion on this page.
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" up (for all models). If non combus- tible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). See chart below and Figure 5 for minimum clearances.
IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open.
Requirements for  | ||
Material Distance (A)  | Safe Installation  | |
  | 
  | 
  | 
12" or more  | Non combustible material okay.  | |
Between 8" and 12"  | Install fireplace hood accessory (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.  | |
  | 
  | 
  | 
Heat Resistant ![]()
Material
(A)
Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace
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