Masonry; Alternate Masonry - Quadra-Fire CAB50-C Installation Manual

E. Masonry
Figure 21.1
F. Alternate Masonry
Figure 21.2
21
WARNING
Fire Risk
Inspection of Chimney:
• Masonry chimney must be in
good condition.
• Meets minimum standard of NFPA 211
• Factory-built chimney must be a minimum
6 inch (152mm) UL103 HT.
Concrete Cap
1 in. (25mm) Clearance
with Firestop
6 in. (152mm)
Minimum
Non-combustible Hearth Pad
Concrete Cap
1 in. (25mm)
Clearance with Firestop
6 in.
(152mm)
Minimum
Non-combustible
Hearth Pad
7074-803C
Fireclay flue
Liner with Airspace
Flashing
1 in. (25mm) Clearance
3 in. (76mm) Minimum
Sheathing
Clean-Out cover
Airtight
Clean-Out Door
Fireclay Flue Liner
with Airspace
Flashing
1 in. (25mm) Clearance
2 in. (51mm) Minimum
Sheathing
Airtight Clean-out Door
09/20