Desa CGD3924N installation manual Minimum Non Combustible Material Clearances

INSTALLING

Continued

10

NOTICE

You may use this heater as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, non-combustible material above fire- place opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 13.

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. If non combustible material is less than 12", you must install the fireplace hood accessory. 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. Go to Installing Damper Clamp Accessory for Vented Operation, page 13.

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.

Heat Resistant

Material

(A)

Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace

102828