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B. Clearances
10
Storm Collar
Roof Flashing
2 in.
(51 mm)
min.
(attic)
2 in. (51 mm) min.
Ceiling Firestop
2 in. (51 mm) min.
0 in.
to floor
1/2 in. (13 mm)
to side of
appliance
Figure 3.2
Clearances to Combustible Materials
Heat & Glo • RH-36/RH-42 • 4044-153 Rev S • 06/07
2 in. (51 mm) min.
Attic
Insulation
Shield
Ceiling Firestop
(ceiling)
2 in. (51 mm) min.
Offset/Return with
hanger straps
(straps not shown)
(ceiling)
2 in. (51 mm) min.
Must have 2 in. (51 mm)
minimum clearance
to header
0 in. to level
of standoffs
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