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23Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11
D. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clear-
ances as specifi ed. Framing or fi nishing material closer than
the minimums listed must be constructed entirely of noncom-
bustible materials (i.e., steel studs, concrete board, etc).
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
Figure 5.3 Minimum Vertical and Maximum Horizontal
Dimensions
Note: All
measurements
in inches.
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
Figure 5.4 Mantel Leg or Wall Projections (Acceptable on both
sides of opening)
Mantel Legs or Wall Projections
C. Clearances
NOTICE: Install appliance on hard metal or wood surfaces
extending full width and depth. DO NOT install directly
on carpeting, vinyl, tile or any combustible material other
than wood.
WARNING! Risk of Fire! Maintain specifi ed air space
clearances to appliance and vent pipe:
• Insulation and other materials must be secured to prevent
accidental contact.
• The chase must be properly blocked to prevent blown
insulation or other combustibles from entering and
making contact with fi replace or chimney.
• Failure to maintain airspace may cause overheating and
a fi re.