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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 11.
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
at least 8" up. Even if noncombustible material
is more than 12", you may need the hood ac-
cessory to deflect heat away from your mantel
shelf. See Figure 5 (see page 9), Figure 6 and
Figure 7 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 11.
MANTEL CLEARANCES
In addition to meeting noncombustible mate-
rial 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).
10"
8"
6"
2 1 /2"
Minimum
Noncombustible
Material
Minimum
Noncombustible
Material Height
Figure 6 - Minimum Mantel Clearances
Without Using Hood
10
INSTALLATION
Mantel Shelf
Underside of
Mantel Shelf
All minimum
distances are
in inches
Log Set
(A)
All Models
8"
8" 14" 17" 20"
Top of
Fireplace
Opening
Distances to
Underside of
Mantel
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Continued
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 clear-
ances required. Follow minimum clearances
shown in Figure 7 when using a hood.
NOTICE: Surface temperatures
of adjacent walls and mantels
become hot during operation.
Walls and mantels above the
firebox may become hot to
the touch. If installed properly,
these temperatures meet the
requirement of the national
product standard. Follow all
minimum clearances shown in
this manual.
NOTICE: If your installation does
not meet the minimum clear-
ances shown, you must do one
of the following:
• operate the logs only with the
flue damper open
• raise the mantel to an accept-
able height
• remove the mantel
Minimum
Noncombustible
Material
Figure 7 - Minimum Mantel Clearances
Mantel Shelf
12"
10"
8"
6"
2 1 /2"
8"
12" 15" 18"
Min.
Distances to
Hood (GA6050,
Underside of
GA6052 and
Mantel
GA6053)
When Using Hood
Underside of
Mantel Shelf
All minimum
distances are
in inches
20"
Top of
Fireplace
Opening
122136-01C
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