Astria.us.com
900704-00E
11
INSTALLATION
Continued
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Noncombustible
Material Distance
(A)
Requirements for Safe
Installation
12" or more
Noncombustible material
OK.
Between 8" and 12"
24", 30" or 36" Models:
Install fi replace hood
accessory (GA6050 - see
Accessories
,
Page 44
)
. 18"
Model: Noncombustible
material OK.
Less than 8"
Noncombustible material
must be extended to at
least 8". See
Between 8"
and 12"
, above. If you can-
not extend material, you
must operate heater with
fl ue damper open.
materials (such as slate, marble, tile, etc.) must be
at least 1/2" thick. With sheet metal, you must have
noncombustible 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 fi replace hood accessory (24",
30" and 36" Models Only). Even if noncombustible
material is more than 12", you may need the hood
accessory to defl ect heat away from your mantel
shelf. See
Figures 5 and 6
and
Figure 7, Page 12
,
for minimum clearances.
Figure 6 - Minimum Mantel Clearances Without
Using Hood
If Using Mantel
You must have noncombustible material(s) above
the fi replace opening. Noncombustible
MANTEL CLEARANCES
In addition to meeting noncombustible material
clearances, you must also meet required clearances
between fi replace 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 fi replace opening, a hood is not
required
(see
Figure 6
).
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
, when
using hood.
Heat Resistant
Material
(A)
Minimum
Noncombustible
Material
Minimum
Noncombustible
Material Height
Distances to
Underside of
Mantel
Top of
Fireplace
Opening
Underside of
Mantel Shelf
12"
8"
(A)
18"
14"
20"
17"
22"
19"
24"
20"
All minimum
distances are
in inches
Log Set
24"/30"/36"
Models
18" Model
2 1/2"
6"
8"
10"
Mantel Shelf
NOTICE: Surface temperatures of ad-
jacent walls and mantels become hot
during operation. Walls and mantels
above the fi rebox 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.
Minimum clearance requirements include any projections such
as shelves, window sills, mantels, etc. above the appliance.
