INSTALLATION
Continued
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Noncombustible Requirements for
Material
Safe Installation
Distance (A)
1" or more
Noncombust ble
material OK.
Between 8"
4" or 30" Models:
and 1"
Install fireplace hood
accessory (GA050,
GA05, or GA053 see
Accessories
, page 31).
Less than 8"
Noncombust ble
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.
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 behind it. Noncom
-
bustible material must extend 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 Figures 5, 6 and 7 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 11.
MANTEL CLEARANCES
In addition to meeting noncombustible material
clearances, you must also meet required clearances
between fireplace opening and mantel shelf. 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).
Determining Minimum Mantel Clearance
When Using a Hood
If minimum clearances in Figure 6 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
when using hood.
Figure 6 - Minimum Mantel Clearances
Without Using Hood
Figure 7 - Minimum Mantel Clearances
When Using Hood
Minimum
Noncombustible
Material
Minimum
Noncombustible
Material Height
Distances to
Underside of
Mantel
Top of
Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
12"
(
A
)
18"
20"
22"
24"
All minimum
distances are
in inches
2
1/2
"
6"
8"
10"
Min mum
Noncombustible
Mater al
8"
Min
12" 15"
18"
20"
2½"
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood
(GA6050,
GA6052 or
GA6053)
Top of
Fireplace
Opening
Underside
of Mantel
She f
Mantel Shelf
