Connection To A Masonry Chimney - HearthStone Bennington 8350 Owner's Manual

C T A M
ONNECTION O
Consider two primary elements when connecting your
stove to a masonry chimney: the chimney itself and the
thimble where the stovepipe connects to the chimney.
Use only Code approved masonry chimneys with a flue
liner. Before connecting to a masonry chimney, hire a
professional to examine the chimney for cracks, loose
mortar, and other signs of deterioration and blockage. If
the chimney needs repair, complete them before installing
and using your stove. Do not install your stove until the
chimney is safe for use.
Make sure the chimney's cleanout is complete and
working properly. To avoid a loss of draft, the cleanout
must close off completely. If allowed to cool, your stove
will perform poorly and creosote will build up in the
chimney.
Make sure the size of the chimney's flue is appropriate for
this stove and that it is not too large. Use a masonry
chimney with a maximum of 8" x 8" (203 mm x 203 mm)
tile size for best results. An oversized flue will contribute
to the accumulation of creosote.
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C
ASONRY HIMNEY
Use the following checklist to ensure that your masonry
chimney meets these minimum requirements:
Chimney wall construction:
q
Brick or modular block at least 4" (102 mm) thick.
q
A rubble or stone wall.
Flue liner:
q
Minimum thickness of 5/8" (16 mm).
q
Installed with refractory mortar.
q
At least 1" (25 mm) air space.
q
An equivalent flue liner must be a listed chimney
liner system meeting type HT requirements or other
approved material.
Interior chimney requirements:
q
At least 2" (51 mm) clearance to combustible
structure
q
Fire stops must be installed at the spaces where the
chimney passes through floors and/or ceiling.
q
Insulation must be 2" (51 mm) from the chimney.
Exterior chimney requirements:
q
At least 1" (25 mm) clearance to combustible
structure.
Chimney height requirements: (See Illustration)
q
At least 3 feet (0.9 m) higher than the highest part of
the roof opening through which it passes.
q
At least 2 feet (0.6 m) higher than any part of the roof
within 10 feet (3 m) measured horizontally from the
top of the chimney.
We recommend a minimum chimney height of 13 feet (4
m). The maximum allowable chimney height is 30 feet
(9m).
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Bennington Model 8350