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INSTALLATION Combustible Wall Chimney Connector Pass-Throughs
NOTES:
1. 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.
2. A chimney connector shall not pass through an attic or roof space, closet or similar concealed space, or a floor, or ceiling.
3. Where passage through a wall, or partition of combustible construction is desired, the installation shall conform to CAN/CSA-B365.
PAGE 11
Note: 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.
Method A. 12 inch (305 mm) Clearance to Combustible
Wall Member: Using a minimum thickness 3.5 inch (90
mm) brick and a 5/8 inch (16 mm) minimum wall thickness
clay liner, construct a wall pass-through. The clay liner
must conform to ASTM C315 (Standard Specification for
Clay Fire Linings) or its equivalent. Keep a minimum of 12
inches (305 mm) of brick masonry between the clay liner
and wall combustibles. The clay liner shall run from the
brick masonry outer surface to the inner surface of the
chimney flue liner but not past the inner surface. Firmly
grout or cement the clay liner in place to the chimney flue
liner.
Method B. 9 inch (229 mm) Clearance to Combustible Wall
Member: Using a 6 inch (152 mm) inside diameter, listed,
factory-built Solid-Pak chimney section with insulation of 1
inch (25.4 mm) or more, build a wall pass-through with a
minimum 9 inch 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-inch (229 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 inch (152 mm) Clearance to Combustible Wall
Member: Starting with a minimum 24 gage (.024 inch [.61
mm]) 6-inch (152 mm) metal chimney connector, and a
minimum 24 gage ventilated wall thimble which has two air
channels of 1 inch (25.4 mm) each, construct a wall pass-
through. There shall be a minimum 6 inch (152 mm) sepa-
ration area containing fiber glass 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-inch (152
mm) space. There should also be a support sized to fit
and hold the metal chimney connector. See that the sup-
ports 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 inch (51 mm) Clearance to Combustible Wall
Member: Start with a solid-pak listed factory built chimney
section at least 12 inches (305mm) long, with insulation of
1 inch (25.4mm) or more, and an inside diameter of 8
inches (2 inches [51 mm] larger than the 6 inch [152 mm]
chimney connector). Use this as a pass-through for a
minimum 24-gage single wall steel chimney connector.
Keep solid-pak section concentric with and spaced 1 inch
(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
section do not penetrate chimney flue liner.
D
C
B
A