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© 2021 United States Stove Company
9
5. Using a fire screen at the extremity of the chimney
requires regular inspection to ensure that it is not
obstructed thus blocking the draft, and it should be
cleaned when used regularly.
FACTORY BUILT CHIMNEY
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.
Listed Cap
Maintain 2”
Clearance
Listed
Chimney
Ceiling
Support
Ceiling
Support
Chimney
Connector
*
* Refer to Clearance
to Combustibles
Combustible Wall
Floor
Protector
To Stove
Storm Collar
Flashing
Listed
Chimney
Attic
Insulation
Sheild
Specified
Clearance
Chimney
Connector
Combustible
Ceiling Joists
To Stove
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 PASSTHROUGHS
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.
INSTALLATION
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