Lennox Hearth TRADITIONS T150C User Manual

Page 11

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.

A chimney connector shall not pass through an attic or roof space, closet or similar concealed space, or a floor, or ceiling.

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.