Heatilator • CI60 • 4013-031 Rev M • 10/06
25
Figure 8.4
Raised Hearth Extension
12 in.
(305 mm)
Min.
12 in.
(305 mm)
Min.
20 in.
(508 mm)
Min.
Noncombustible Material
Hearth Strip
20 in.
(508 mm) Min.
Hearth Extension
Micore
Floor
Note:
Maximum height from floor
under fireplace to top of finished
hearth extension is 7-5/8 in.(195 mm)
Figure 8.5
Flush Hearth Extension
30 in. (762 mm)
min.
12 in.
(305 mm)
Min.
12 in.
(305 mm)
Min.
Noncombustible Material
Hearth Strip
30 in.
(762 mm) Min.
Hearth Extension
Micore
Floor
Note:
Maximum height from floor
under fireplace to top of finished
heart extension is 7-5/8 in. (194 mm)
