Heatilator BIR42 Owner's Manual page 29

WARNING! Risk of Fire!
sulation shield when there is any possibility of insulation
or other combustible material coming into contact with
DO NOT pack insulation between the chimney and
DO NOT
tube.
WARNING! Risk of Fire! Use of cardboard or other
-
Bend inward
90°
Insulation
13 in.
(330 mm)
-
Insulation
13 in.
(330 mm)
Bend remaining tabs
to rest against pipe to
prevent insulation
from falling in.
Insert three
screws
3 in. (76 mm)
overlap
Tabs bent in to
rest against pipe
Pipe
Attic Insulation Shield
17 in. (432 mm)
diameter
6 Tabs bent
in 90°
Ceiling Firestop
Pipe
Insulation
Tabs bent in to
rest against pipe
Pipe
Attic Insulation Shield
17 in. (432 mm)
diameter
6 Tabs bent
in 90°
Insulation
Ceiling Firestop
Pipe