Hearthstone Quality Home Heating Products, Inc
®
Bari Model 8171
24
Figure 3: Chimney Connector Clearances
C
HIMNEY
C
ONNECTOR
S
YSTEMS AND
C
LEARANCES FROM
C
OMBUSTIBLE
W
ALLS
FOR
R
ESIDENTIAL
H
EATING
A
PPLIANCES
A. Minimum 3.5in thick brick masonry all framed
into combustible wall with a minimum of 12in.
brick separation from clay liner to combustibles.
The fire clay 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.
B. Solid-insulated, listed factory-built chimney
length of the same inside diameter as the
chimney connector and having 1in. or more of
insulation with a minimum 9in. air space
between the outer wall of the chimney length
and combustibles.
C. Sheet steel chimney connector, minimum 24
gauge in thickness, with a ventilated thimble,
minimum 24 gauge in thickness, having two 1in.
air channels, separated from combustibles by a
minimum of 6in of glass fiber insulation.
Opening shall be covered, and thimble
supported with a sheet steel support, minimum
24 gauge in thickness.
D.
Solid insulated, listed factory-built chimney
length with an inside diameter 2in. larger than
the chimney connector and having 1in. or more
of insulation, serving as a pass-through for a
single wall sheet steel chimney connector of
minimum 24 gauge thickness, with a minimum
2in. air space between the outer wall of
chimney section and combustibles. Minimum
length of chimney section shall be 12in.
chimney section spaced 1in. away from
connector using sheet steel support plates on
both ends of chimney section. Opening shall be
covered, and chimney section supported on
both sides with sheet steel supports securely
fastened to wall surfaces of minimum 24 gauge
thickness. Fasteners used to secure chimney
section shall not penetrate chimney flue liner.
