Heat & Glo HST-48D Owner's Manual page 28

E. Install Ceiling Firestops
CAUTION! Risk of Fire!
whenever the chimney penetrates a ceiling/ oor
hase construction requires ceiling restops at each
oor or every ft
The ceiling restop slows spread of re and reduces cold
air in ltration
WARNING! Risk of Fire! DO NOT seal area between
restop opening and chimney pipe e cept where they
enter the attic or leave the warm air envelope of the
home use sealant)
eiling restops must be used
m) of clear space
ROOM ABOVE (non-insulated ceiling)
B
Ceilng firestop from
bottom
ATTIC ABOVE (insulated ceiling)
Ceiling firestop from
top
Note:
Use same dimensional lumber for framing
ceiling firestop and joists.
A
Catalog # in
Figure 8.5 Installing the Ceiling Firestop
A
B
mm in mm