Heatilator • CI80 • 4013-032 Rev N • 10/06
29
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 8.3
Raised Hearth Extension
12 in.
Min.
12 in.
Min.
20 in.
Min.
30 in. min.
12 in.
Min.
12 in.
Min.
Noncombustible Material
Hearth Strip
30 in. Min.
Hearth Extension
Micore
Floor
Note:
Maximum height from floor
under fireplace to top of finished
hearth extension is 7-5/8 in.
Figure 8.4
Flush Hearth Extension