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B. Clearances
WARNING! Risk of Fire! You must comply with all minimum air space clearances to combustibles as specied in Fig-
ure 6.2. DO NOT pack required air spaces with insulation or other materials.
(insulation)
0 in. to level
of standoffs
Attic
Insulation
Shield
(ceiling)
(roof)
(attic)
(ceiling)
Ceiling Firestop
Offset/Return (secured
with hanger straps)
Storm Collar
Roof Flashing
1/2 in. (13 mm) to
back of appliance
Must have 2 in. (51 mm)
minimum clearance
to header
0 in.
to floor
2 in. (51 mm) min.
Shaded areas
represent
2 in. (51 mm) min.
air space clearance
required around pipe
Combustible Object
48 in.
1219 mm
Figure 6.2 Air Space Clearances
Heat & Glo • BAY-40, PIER-40 • 34977 • Rev AB 7/12