MHSC B36RA8 Installation, Operation And Maintenance Manual page 22

B36LA8 & B36RA8 Woodburning Fireplaces
You must check your local building codes to determine
specific requirements for your city or state. NOTE:
Other building materials may be required in addition to
Firestop Spacers.
Figure 22
17"
7 "
FP1894
firestop spacer
22
8/08
Figure 21
Support Straps Not
to Penetrate Firestop
Vertical Chimney
Enclosure
Fasten All Support
Straps Securely
Vertical Chimney Enclosure
Recommended.
Diagonal Chimney Enclosure
Acceptable
Diagonal Chimney
Enclosure
Support Straps
NOTE: Four (4) elbows
may be used when total
installation height ex-
ceeds 21 ft.
22 "
7 "
Centerline of
30°
Chimney
CHIMNEY OFFSET AND CAP INSTALLATION
Continue chimney through roof
and install round chimney cap
or chimney housing
Firestop Spacer 1C\v" Minimum Air
Space Clearance at Joist.
Chimney Must Be Enclosed in
Accessible Areas
2" Min. Air Space
Clearance to
Combustibles
Vertical Chimney
Enclosure
Firestop Spacer 1C\v" Minimum Air
Space Clearance at Joist.
Offset Max 10'
2" Min. Air Space
Clearance to
Combustibles
Diagonal Chimney
Enclosure
2" Min. Air Space
Clearance to
Combustibles
RISE
Firestop Spacer
14Z\x" x 14Z\x"
Maximum four (4)
elbows Per Fire-
place
FP2170
87D0176