Desa UNVENTED (VENT-FREE) PROPANE GAS LOG HEATER Installing, Continued, If Not Using Mantel

INSTALLING

Continued

10

NOTICE

Manual control heaters may be used 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 fireplace 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 information 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 combustible 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. 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"	24" or 30" Models: Install fireplace hood
	acessory (GA6050 or GA6052, see
	Accessories, page 33).
	18" Model: Non combustible material OK.
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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