Filter
Top Products
Heatilator • ST42A • 35038 Rev G • 02/05
10
B. Clearances
2 in. (51 mm) min.
0 in. to level
of standoffs
Attic
Insulation
Shield
Firestop Spacer
(ceiling)
(roof)
(attic)
(ceiling)
Firestop Spacer
Offset/Return with
hanger straps
Storm Collar
Roof Flashing
1/2 in. (13 mm) to side of appliance
2 in. (51 mm) min.
2 in. min.
(51 mm)
Must have 2 in. (51 mm)
minimum clearance
to header
0 in.
to floor
2 in. (51 mm) min.
2 in. (51 mm) min.
2 in. (51 mm) min.
2 in. (51 mm) min.
Figure 3.2 Clearances to Combustible Materials
Fire Risk
• Comply with all minimum clearances to
combustibles as specifi ed.
Failure to comply may cause fi re.
WARNING