Sidewalls/Surrounds; Frame The Fireplace - Heatilator Wood Burning Fireplace A36CH Owner's Manual

C. Sidewalls/Surrounds
• Adjacent combustible sidewalls must be located a minimum of 12 in. (305 mm) (may be 24 in) from the fi replace
opening.
• Combustible and noncombustible mantel legs, surrounds and stub walls may be constructed per Figure 6.3.
Grid represents 1 in. scale
FLUSH
FRONT
10 3/4 in.
[273 mm]
12 in.
[305 mm]
Figure 6.3 Mantel Leg or Wall Projections (Acceptable on both sides of opening)
D. Frame the Fireplace
Figure 6.4 shows typical framing using combustible materials (2x4 lumber shown).
• Observe all required air space clearances to combustible materials as shown in Figure 6.2.
• Framing across the top of fi replace must be above top standoffs.
2 in. (51 mm)
min. air space
clearance
from chimney.
C
B
Figure 6.4 Framing the Fireplace
20
[102 mm]
BRICK
FRONT
A
B
12 in.
[305 mm]
D
A
* If interior of chase will be drywalled, add the thickness to this measurement.
** Adjust header height for a raised fl oor under fi replace.
Heatilator • A36C & A42C • 28396 • Rev AG • 11/08
Model # Fireplace Opening
in.
4 in.
A36
mm
in.
A42
mm
9 3/4 in.
[248 mm]
Header MUST NOT be notched!
D = extra space needed for outside air connection.
If outside air duct has no bend, this dimension may be
reduced as long as minimum clearances are met.
Model # A
in. 43
A36
mm 1092
in. 49
A42
mm 1245
A B
Outside Dimensions
36 42
914 1067
42 48
1067 1219
B* C** D
23 41 1/2 8
584 1054 203
23 41 1/2 8
584 1054 203