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CONNECTION OF CHIMNEY CONNECTOR TO A
MASONRY CHIMNEY THROUGH A COMBUSTIBLE
WALL
CONNECTION OF CHIMNEY CONNECTOR TO A MASONRY
CHIMNEY THROUGH A COMBUSTIBLE WALL
SEE FIGURES 6-9 FOR
OPTIONS.
MASONRY
CHIMNEY
CONSTRUCTED
TO NFPA 211
AIRTIGHT
CLEANOUT
DOOR
The figures in this manual show how to connect the
chimney connector of a heater to a masonry chimney
through a combustible wall. There are five allowable
ways that a chimney connector can be connected to
a masonry chimney by passing through a combustible
wall. NFPA Standard 21 1 allows the following wall pass-
through systems:
Figure
10
1. Minimum 3.5 inch (89 mm)thick brick masonry
all framed into combustible wall. A fireclay liner
(ASTM C315 or equivalent) having a 5/8" mini-
mum wall thickness must be used and it must
be at least 12" away from any material that could
catch fire. The inside diameter of the fireclay
liner shall be sized for the proper snug fit of a 6"
diameter chimney connector pipe. The fireclay
liner shall run from outer surface of brick wall to,
but not beyond, the inner surface of chimney flue
liner and shall be firmly cemented in place.
Single Burn Rate Wood Fire Stove
CEILING
CHIMNEY
CONNECTO R
TO
HEATER
COMBUSTIBLE
WALL
FLOOR PROTECTOR
FIGURE 9
Figure
11
2. Use a solid insulated listed factory-built chimney
length having an inside diameter of 6" and 1" or
more of solid insulation. There must be at least a
9" air space between the outer wall of the chim-
ney length and any combustible materials. The
inner end of the chimney length shall be flush
with the inside of the masonry chimney, the flue
shall be sealed to the flue and to the brick mason-
ry penetration with non-water-soluble refractory
cement. Sheet steel supports which are at least
24 gauge (0.024") in thickness shall be securely
fastened to wall surfaces on all sides. Fasteners
between supports and the chimney length shall
not penetrate the chimney liner.
Figure 12
3. Use a 10" diameter ventilated thimble made of
at least 24 gauge (0.024") steel having two 1" air
channels. The ventilated thimble must be sepa-
rated from combustible materials by a minimum
of 6" glass fiber insulation. The opening in the
combustible wall shall be covered and the thimble
supported with sheet steel supports which are
at least 24 gauge (0.024") in thickness. The sheet
steel supports shall be securely fastened to wall
surfaces on all sides and shall be sized to fit and
hold the chimney section. Fasteners used to se-
cure chimney sections shall not penetrate chimney
flue liner.
E9
Operating Instructions and Owner's Manual
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