Clearances - Heatilator C40 Installation Manual

B. Clearances
WARNING! Risk of Fire!
You must comply with all minimum air space clearances to combustibles as specified in Figure 3.2. DO NOT pack required
air spaces with insulation or other materials. Framing or finishing material used on the front of, or in front of, the fireplace
closer than the minimums listed must be constucted entirely of non-combustible materials (i.e., steel studs, concrete board,
etc.). Failure to comply may cause fire.
Figure 3.2
Heatilator • C40 Constitution • 480-2340 Installation Manual • Rev K • 8/24/15
Storm Collar
Roof Flashing
2 in. min.
(attic)
2 in. (51 mm) min.
Ceiling Firestop
2 in.
(51 mm)
36 in. (914 mm)
min.
standoffs to ceiling
0 in. to level
of standoffs
0 in.
to floor
Clearances to Combustible Materials
2 in. (51 mm) min.
(51 mm)
Ceiling Firestop
(ceiling)
2 in. (51 mm) min. 2 in. (51 mm) min.
Offset/Return with
(ceiling)
2 in. (51 mm) min.
Chimney air kit required
with SL chimney
1 in. (25mm) to side of appliance
(except at nailing flanges where it is 1/2 in. [13 mm])
Attic
Insulation
Shield
hanger straps
Must have 2 in. (51 mm)
minimum clearance
to header
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