FMI FLAME-MAX FVFM27NR - Manual (Page 10)

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INSTALLATION
Continued
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
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, noncombustible material
above fireplace opening is not
needed. Go to Installing Damper
Clamp Accessory for Vented
Operation, page 12.
MINIMUM NONCOMBUSTIBLE
MATERIAL CLEARANCES
If Not Using Mantel
Note: If using a mantel, proceed to If Using
Mantel. If not using a mantel, follow the infor-
mation below.
You must have noncombustible material(s)
above both fireplace openings. Noncombus-
tible materials (such as slate, marble, tile, etc.)
must be at least 1/2" thick. With sheet metal,
you must have noncombustible material be-
hind it. Noncombustible material must extend
at least 8" up. If noncombustible material is
less than 12", you must install the fireplace
hood accessory. See Figure 5 for minimum
clearances.
IMPORTANT: If you cannot meet these mini-
mum clearances, you must operate heater
with chimney flue damper open. Go to Install-
ing Damper Clamp Accessory for Vented
Operation, page 12.
If 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" thick. With sheet metal,
you must have noncombustible material be-
hind it. Noncombustible material must extend
Noncombustible
Material Distance (A) Requirements for
Safe Installation
12" or more Noncombustible
material OK.
Between 8" and 12" Install fireplace hood
accessory (GA6050
or GA6053 see Ac-
cessories, page 29).
Less than 8" Noncombustible
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.
at least 8" up. 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 5 and Figures 6
and 7, page 11, for minimum clearances.