© 2021 United States Stove Company
9
INSTALLATION
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
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.
Be sure to 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.
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
COMBUSTIBLE WALL CHIMNEY
CONNECTOR PASS-THROUGHS
METHOD A -
12” (304.8 mm) Clearance to
Combustible Wall Member: Using a minimum
thickness 3.5” (89 mm) brick and a 5/8” (15.9 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” (304.8 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” (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.
