Vermont Castings 968 Installation And Operating Manual page 34

Vermont Castings Defiant
Appendix: Chimney and Fireplace Hazards
B
C
D
G
K
34
A
E
F
H
I
J
H
ST562
General -
A. Improper chimney height. The top of the chimney
must be at least 3 feet higher than the spot where it
passes through or past the roof, or two feet higher
than everything else within ten feet horizontally,
whichever is higher.
B. Deteriorated chimney cap
C. Structural defects indicated by creosote stains on
outside of chimney
D. Blockage within chimney
E. Improper clearance between chimney and nearby
combustibles (less than 2" - check local codes)
K. Loose or leaky cleanout door
For a fireplace -
F. Improper clearance between smoke chamber and
framing materials - (less than 2" - check local codes)
G. Creosote buildup on smoke shelf
H. Structural deterioration
I. Loose or broken bricks or mortar
J. Insufficient hearth depth. The hearth must extend
16" (18"/460mm in Canada) beyond the fireplace
opening. With a fireplace insert, or a free-standing
stove vented through a fireplace, the hearth must
extend 16" (18"/460mm in Canada) beyond the front
door opening of the stove or insert.