Heatilator • GBST4336I, GBFL4136I • 2135-900 • 2/08
30
A. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clear-
ances to combustibles as specifi ed. Framing closer than the
minimums listed must be constructed entirely of noncom-
bustible materials (i.e., steel studs, concrete board, etc.)
Failure to comply could cause fi re.
13
13
Finishing
Figure 13.1 Minimum Clearances To Combustible Mantels Or
Other Combustibles Above Appliance
Figure 13.3 Combustible Mantel Leg or Wall Projections
(Acceptable on both sides of opening)
Note:
All
measurements
in inches.
MEASUREMENTS FROM
TOP EDGE OF THE OPENING
5
10
11
12
2-1/2
13
14
15
16
17
18
19
32
TO CEILING
9
10
11
12
8
7
6
5
4
3
25
18
GBST4336I Mantel Projection
TOP VIEW
3-1/4 in.
MIN.
2-7/16
in. MIN.
1/2 in.
MIN.
UNLIMITED
1 in.
MAX.
Note: Clearance from
opening to perpendicular
wall.
B. Facing Material
• Metal front faces may be covered with non-combustible
materials only.
• Facing and/or fi nishing materials must not interfere with
air fl ow through louvers, operation of louvers or doors,
or access for service.
• Facing and/or fi nishing materials must never overhang
into the glass opening.
• Observe all clearances when applying combustible
materials.
• Seal joints between the fi nished wall and appliance top
and sides using a 300 °F minimum sealant. Refer to
Figure 13.3.
WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specifi ed in
this manual. Overlapping materials could ignite and will
interfere with proper operation of doors and louvers.
0 in.
0 in.
0 in.
Finish wall material may be
combustible - Top and Sides
High Temperature Sealant (300° F/149° C min.)
Top and Side Seal Joint
Figure 13.4 Noncombustible Facing Diagram
Combustible Mantel Legs or Wall Projections
MEASUREMENTS FROM
TOP EDGE OF THE OPENING
5
10
11
12
1
13
14
15
16
17
18
19
32
TO CEILING
9
10
11
12
8
7
6
5
4
3
25
18
Note:
All
measurements
in inches.
Figure 13.2 Minimum Clearances to Combustible Mantels
or Other Combustibles Above Appliance
GBFL4136I Pier Mantel Projection