Desa VML27PR - Manual (Page 10)

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inStALLAtion
Continued
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 informa-
tion below.
You must have noncombustible material(s) above
both fireplace openings. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2" thick. With sheet metal, you must have non-
combustible material behind it. Noncombustible
material must extend at least 8" up (for all models).
If noncombustible material is less than 12", you
must install the fireplace hood accessory. See
Figure 5 at right 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 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 non-
combustible material behind it. Noncombustible
material must extend at least 8" up (for all models).
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 6 and
Figure 7, page 9, 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 12.
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Noncombustible
Material
Requirements for
Distance (A) Safe Installation
1" or more Noncombustible
material OK.
Between 8" Install fireplace hood
and 1" accessory (GA6050,
GA605 or GA6053, see
Accessories, page 9).
Less than 8" Noncombustible
material must be
extended to at least 8".
See Between 8" and 1",
above. If you cannot
extend material, you must
operate heater with flue
damper open.
MANTEL CLEARANCES
In addition to meeting noncombustible material
clearances, you must also meet required clearances
between fireplace openings and mantel shelf on
each side of the fireplace. If you do not meet the
clearances listed below, you will need a hood.
Determining Minimum Mantel Clearance
If you meet minimum clearance between mantel
shelf and top of fireplace opening, a hood is not
required (see Figure 6, page 11).
Determining Minimum Mantel Clearance
When using a Hood
If minimum clearances in Figure 6, page 11 are not
met, you must have a hood. When using a hood
there are still certain minimum mantel clearances
required. Follow minimum clearances shown in
Figure 7, page 11 when using hood.