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Page 15
5100-I ACT WOOD INSERT
R
438-0380D
September 1, 2008
Floor
Ceiling
Caulk
Floor
(second Story)
Non-Combustible
Firestopping
Material
Minimum 1 inch (25mm)
clearance from exterior
chimney to sheathing
Firestopping
2 inch
(51mm)
Non-combustible
fire stopping material
Minimum 2 inch (51mm) clearance
from combustible material
and insulation
ceiling
Ovalizing round stainless steel liners to accommodate the
liner passing through the damper region of a replace is an
allowable and acceptable practice.
Ensure that the ovalization is minimized to the extent
required to t through the damper.
C. Installing Chimney Components
REQUIRED: A minimum NFPA 11 required stainless steel
liner connector pipe extending to the rst ue liner of the
existing code approved masonry chimney. To eliminate dilu-
tion air in the chimney, seal the damper area of the chimney
around the chimney connector.
BEST: A complete relining of the chimney system with a 6
inch (152mm) diameter listed, stainless steel liner. The liner
must be connected to the insert ue collar and extend the
entire height of the chimney, terminating slightly above a plate
that seals the top of the chimney. All joints should be secured
with 3 sheet metal screws. The sections must be attached to
the insert and to each other with the crimped (male) end point-
ing toward the insert. Figure 15.1.
Minimum clearances to combustibles must be maintained.
A full reline is required for factory-built replace installations in
Canada and is highly recommended in USA.
Air Clearances
To ensure that insulation or any other combustible material
does not contact the chimney, a chimney inside the house
must have at least 2 inches (51mm) of air space clearance
around
t
he chimney. A chimney outside the house must
have at least 1
inch (25mm) clearance to the combustible
structure. Noncombustible re stops must be installed at the
spaces where the chimney passes through oors and/or ceil-
ings. Figures 15.2 and 15.3.
Fire Risk.
Do NOT pack insulation or other
combustibles between spacers.
• ALWAYS maintain specied clearances
around venting and spacers.
• Install spacers as specied.
Failure to keep insulation or other material
away from vent pipe may cause re.
WARNING
Ovalizing Round Stainless Steel Liners
LINER CONNECTOR
FLUE
GAS
DIRECTION
CRIMPED
END
TOWARDS
STOVE
Figure 15.1
Figure 15.2
Figure 15.3