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© 2020 United States Stove Company
When a metal prefabricated chimney is used, the
manufacturer’s installation instructions must be
followed. You must also purchase (from the same
manufacturer) and install the ceiling support
package or wall pass-through and “T” section
package, firestops (where needed), insulation
shield, roof flashing, chimney cap, etc. Maintain
proper clearance to the structure as recommended
by the manufacturer. The chimney must be the
required height above the roof or other obstructions
for safety and proper draft operation.
MASONRY CHIMNEY
Sheathing
Airtight
Cleanout
Door
Floor
Protector
Thimble
12” of Brick
Combustible Wall
1” Clearance
with Firestop
Rafter
Concrete Cap
Flashing
To Stove
1” Clearance
Eave
Flashing
Fireclay Flue
Liner With
Airspace
Ensure that a masonry chimney meets the
minimum standards of the National Fire Protection
Association (NFPA) by having it inspected by
a professional. Make sure there are no cracks,
loose mortar or other signs of deterioration and
blockage. Have the chimney cleaned before the
stove is installed and operated. When connecting
the stove through a combustible wall to a masonry
chimney, special methods are needed.
COMBUSTIBLE WALL CHIMNEY
CONNECTOR PASS-THROUGHS
METHOD A -
12” (305 mm) Clearance to Combustible
Wall Member: Using a minimum thickness 3.5”
(89 mm) brick and a 5/8” (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” (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” (229 mm) Clearance to Combustible
Wall Member: Using a 6” (153 mm) inside diameter,
listed, factory-built Solid-Pak chimney section with
insulation of 1” (26 mm) or more, build a wall pass-
through with a minimum 9” (229 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” (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.
INSTALLATION
