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53Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11
13
13
Finishing
A. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clear-
ances as specifi ed. Framing closer than the minimums listed
must be constructed entirely of noncombustible materials
(i.e., steel studs, concrete board, etc.)
Combustible Mantels
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 ºF 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.
Figure 13.3 Noncombustible Facing Diagram
B
A
FACTORY-INSTALLED NON-COMBUSTIBLE BOARD
DO NOT REMOVE
AB
CD4236
inches 39-3/4 41
millimeters 1010 1041
CD4842
inches 41-3/4 48
millimeters 1060 1219
Figure 13.1 Minimum Vertical and Maximum
Horizontal Dimensions
Note: All
measurements
in inches.
Figure 13.2 Mantel Leg or Wall Projections (Acceptable
on both sides of opening)
Mantel Legs or Wall Projections
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
1 in. (25 mm) min.
to perpendicular wall
A
3-1/2 in. (89 mm) min.
from fireplace opening
to perpendicular wall
B
Mantel Leg or
Perpendicular Wall
Top of
Appliance
Drywall
A
B