Hearth and Home Technologies I60 - Manual (Page 20)

20
B
C
A
2 in. (51 mm)
min. air space
clearance
from chimney.
Note: Framing must be
extended straight up,
all the way to the ceiling.
Header MUST NOT be notched!
D
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.
B
A
24 in.
[610 mm]
19 3/4 in.
[502 mm]
24 in.
[610 mm]
28 5/8 in.
[727 mm]
FLUSH
FRONT
4 in.
[102 mm]
BRICK
FRONT
50° angle
39°
angle
Note: Grid depicts 1-in scale.
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.
Figure 6.4 Framing the Fireplace
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.
Figure 6.3 Mantel Leg or Wall Projections (Acceptable on both sides of opening)
Model A B
I60
inches 36 45
mm 914 1130
I80
inches 42 50 1/2
mm 1067 1283
Model A B* C**
D
(4” duct)
D
(6” duct)
I60
in. 45 1/2 28 50 8 12
mm 1156 711 1270 203 305
I80
in. 51 1/2 28 1/2 50 8 12
mm 1308 724 1270 203 305
* 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 • I60, I80 • 4013-250 • Rev C • 11/08