12
INSTALLATION
MINIMUM NONCOMBUSTIBLE MATERIAL CLEARANCE
If Not Using Mantel
You must have noncombustible material(s) above the fireplace opening. Noncombustible
materials (such as slate, marble, tile, etc.) must be at least 1/2 in. thick. With sheet metal,
you must have noncombustible material behind it, such as a noncombustible fireplace hood
accessory. See Fig. 5.
NOTICE:
This heater may be used as a vented product. If so, you must always operate
log set with chimney flue damper open. If running log set with damper open, noncombustible
material above fireplace opening is not needed. Go to Installing Damper Clamp Accessory for
Vented Operation, page 14. When used as a vented decorative appliance, use of the thermostat
function is prohibited, operate manually only.
Fig. 4 - Minimum Clearance for Combustible to Wall
Fig. 5 - Heat resistant material (slate,
marble, tile,etc.) above fireplace
If Using Mantel
You must have noncombustible material(s) (such as slate, marble, tile, etc.) at least 1/2 in. thick.
With sheet metal, you must have noncombustible material behind it. Noncombustible material must
extend at least 8 inches up. If noncombustible material is less than 12 in., you must install the fire-
place hood accessory. Even if noncombustible material is
more than 12 in., you may need the hood accessory to deflect heat away from mantel shelf. See Fig.
7.1 and 7.2 for minimum clearances requirements.
IMPORTANT:
If these minimum clearances are not met, you must operate heater with chimney flue
damper open. Go to “Installing Damper Clamp Accessory for Vented Operation,” page 14.
Heat Resistant
Material
Heat Resistant
Material
(A
)
Содержание VFL-CO18DT
Страница 2: ......