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)
2 in. (51 mm) min. 
Shaded areas
represent
2 in. (51 mm) min. air space clearance required around pipe
Attic
Insulation
Shield
(ceiling)
Offset/Return (secured
with hanger straps)
(ceiling)
Ceiling Firestop | Must have 2 in. (51 mm) | |
minimum clearance | ||
| ||
| to header | |
| Chimney air kit | |
| attached here (not shown) | |
| 0 in. to level | |
| of standoffs | |
| 1/2 in. (13 mm) to back & | |
| side of appliance |
0in.
to floor
Figure 6.2 Clearances to Combustible Materials
Note: Chimney air kit is not shown, but is required in Canada.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09 | 19 |