Heatiator BIR42 owner manual B. Clearances

B. Clearances

Warning! Risk of Fire! You must comply with all minimum air space clearances to combustibles as specified in Fig- ure 6.2. Do NOT pack required air spaces with insulation or other materials.

Storm Collar

Roof Flashing

(attic)

(insulation)

Shaded areas

represent

2 in. (51 mm) min.

air space clearance required around pipe

Attic

Insulation

Shield

(ceiling)

2 in. (51 mm) min.

Offset/Return (secured

with hanger straps)

(ceiling)

Ceiling Firestop

Object
Combustible	48 in.
	1219 mm
	0 in.
	to floor
Figure 6.2 Air Space Clearances

Must have 2 in. (51 mm)

minimum clearance

to header

Transition

1-1/2 in. (38 mm) to back & sides of appliance (except at nailing flanges where it is 1/2 in. [13 mm])

Heatilator • Birmingham BIR42 • 4059-308 Rev J • 1/11 19