METHOD B -
9” (228.6 mm) Clearance to
Combustible Wall Member: Using a 6” (152.4 mm)
inside diameter, listed, factory-built Solid-Pak
chimney section with insulation of 1” (25.4 mm) or
more, build a wall pass-through with a minimum 9”
(228.6 mm) air space between the outer wall of the
chimney length and wall combustibles. Use sheet
metal supports fastened securely to wall surfaces
on all sides, to maintain the 9” (228.6 mm) air space.
When fastening supports to chimney length, do not
penetrate the chimney liner (the inside wall of the
Solid-Pak chimney). The inner end of the Solid-Pak
chimney section shall be flush with the inside of the
masonry chimney flue, and sealed with a non-water
soluble refractory cement. Use this cement to also
seal to the brick masonry penetration.
METHOD C -
6” (152.4 mm) Clearance to Combustible
Wall Member: Starting with a minimum 24 gage
(.024” [.61 mm]) 6” (152.4 mm) metal chimney
connector, and a minimum 24 gage ventilated wall
thimble which has two air channels of 1” (25.4 mm)
each, construct a wall pass-through. There shall be a
minimum 6” (152.4 mm) separation area containing
fiberglass insulation, from the outer surface of the
wall thimble to wall combustibles. Support the
wall thimble, and cover its opening with a 24-gage
minimum sheet metal support. Maintain the 6”
(152.4 mm) space. There should also be a support
sized to fit and hold the metal chimney connector.
See that the supports are fastened securely to wall
surfaces on all sides. Make sure fasteners used
to secure the metal chimney connector do not
penetrate chimney flue liner.
METHOD D -
2” (50.8 mm) Clearance to Combustible
Wall Member: Start with a solid-pak listed factory
built chimney section at least 12” (304 mm) long,
with insulation of 1” (25.4 mm) or more, and an
inside diameter of 8” (2 inches [51 mm] larger than
the 6” [152.4 mm] chimney connector). Use this as a
pass-through for a minimum 24-gauge single wall
steel chimney connector. Keep solid-pak section
concentric with and spaced 1” (25.4 mm) off the
chimney connector by way of sheet metal support
plates at both ends of chimney section. Cover
opening with and support chimney section on both
sides with 24 gage minimum sheet metal supports.
See that the supports are fastened securely to wall
surfaces on all sides. Make sure fasteners used to
secure chimney flue line do not penetrate the inner
liner.
NOTES:
• Connectors to a masonry chimney, excepting
method B, shall extend in one continuous section
through the wall pass-through system and the
chimney wall, to but not past the inner flue liner
face.
• A chimney connector shall not pass through an
attic or roof space, closet or similar concealed
space, or a floor, or ceiling.
INSTALLATION
10
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