Sidewalls/Surrounds; Frame The Fireplace - Heatilator A36R Owner's Manual

C. Sidewalls/Surrounds
Adjacent combustible side walls must be located a minimum of 12 in. (305 mm) from the fi replace opening. See Figure
3.3. If you are using a decorative surround constructed of combustible material, it must be located within the shaded area
defi ned in Figure 3.3. Short stub walls are also acceptable if they are contained within the shaded area.
D. Frame the Fireplace
Figure 3.4 shows a typical framing (using 2 x 4 lumber) of the fi replace, assuming combustible materials are used. All re-
quired clearances to combustibles around the fi replace must be adhered to. See Figure 3.2. Any framing across the top of
the fi replace must be above the level of the top standoffs.
Figure 3.4
14-3/8 in.
Flush
(365 mm)
Front
50 deg.
12 in.
(305 mm)
Model #
in.
A36
mm
in.
A42
mm
Figure 3.3 Sidewalls and Surrounds
2 in. (51 mm)
min. air
clearance
to the
enclosure.
41-1/2 in.
(1055 mm)
23 in.
(584 mm)
Framing the Fireplace
Heatilator • A36R & A42R • 28376 Rev AC • 11/07
4 in.
(102 mm)
Brick
Front
A
B
12 in.
(305 mm)
A
Fireplace Opening Outside Dimensions
36
914
42
1067
A
9-3/4 in.
(248 mm)
39 deg.
B
42
1067
48
1219
Note: Fireplace
header cannot be
positioned until
after the fireplace
assembly is in place.
41-1/2 in. (1055 mm)
header height.
Use only noncombustible
material below the top
of the front standoffs.
Model # A
in. 43
A36
mm 1092
in. 49
A42
mm 1245
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