R
R R
F. Masonry
G. Alternate Masonry
August 13, 2009
Fire Risk.
Inspection of Chimney:
•
Masonry chimney must be in good condition.
•
Meets minimum standard of NFPA 11
•
Factory-built chimney must be a minimum 6 inch (15mm)
UL10 HT.
Concrete Cap
1 in. (5mm) clearance
with firestop
6 in. (15mm)
minimum
Non-combustible Hearth Pad
Figure 17.1
1 in. (5mm) clearance
with firestop
6 in. (15mm)
minimum
Non-combustible Hearth Pad
Figure 17.2
Mt. Vernon Pellet Stove (AE)
WARNING
Fireclay flue
liner with airspace
Flashing
1 in. (5mm) clearance
in. (76mm) minimum to
combustible material
Sheathing
Clean-out cover
Concrete Cap
7034-106F
Airtight
Clean-out Door
Fireclay Flue Liner
with airspace
Flashing
1 in. (5mm) clearance
in. (51mm) minimum to
combustible material
Sheathing
Airtight clean-out door
Page 17