Sidewalls/Surrounds; Frame The Fireplace - Heatilator I60 Owner's Manual

C. Sidewalls/Surrounds
• Adjacent combustible sidewalls must be located a minimum 24 in. (610 mm) from the fi replace opening.
• Combustible and noncombustible mantel legs, surrounds and stub walls may be constructed within the gridded area,
Figure 6.3.
FLUSH
FRONT
28 5/8 in.
[727 mm]
24 in.
[610 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 6.1 & 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
Note: Grid depicts 1-in scale.
A
B
Note: Framing must be
extended straight up,
all the way to the ceiling.
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.
D
A
Heatilator • I60, I80 • 4013-250 • Rev C • 11/08
4 in.
BRICK
[102 mm]
FRONT
19 3/4 in.
[502 mm]
24 in.
[610 mm]
Model A
in. 45 1/2
I60
mm 1156
in. 51 1/2
I80
mm 1308
* If interior of chase will be drywalled, add the thickness to
this measurement.
** Adjust header height for a raised fl oor under fi replace.
Model A
inches 36
I60
mm 914
inches 42
I80
mm 1067
D
B* C** (4" duct)
28 50 8
711 1270 203
28 1/2 50 8
724 1270 203
B
45
1130
50 1/2
1283
D
(6" duct)
12
305
12
305