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7.8 Flashing water tightness: Install a metal
roof flashing with a storm collar where the
chimney pass meets the roof. Seal the joint
between the chimney and the storm collar and the
joint between the roofing and the flashing.
7.9
Roof braces: Any chimney that extends
more than 6 feet (2 m) above the roof needs to be
laterally strengthened with a pair of telescopic
roof braces.
7.10 Chimney top: Install a chimney round top
at the end of the chimney.
8. Fireplace hood installation
8.1 Fastening: Bolt the fireplace hood to the
ceiling support with the 4 supplied bolts.
8.2 Joint gasket: Before fully tightening the
bolts, insert the supplied compressible gasket
between the ceiling support and the fireplace
hood in order to make the joint airtight.
9. Outside air intake installation
Outside air intake installation
The installation
of 1 or 2 CO/CO2
detectors is
always
recommended
Insulated Flexible Duct
DRAWING 9
REV. 2014-10
Hood Assembly
Page 11
9. Outside air intake installation
9.1 IMPORTANT: The outside air intake is an
option to bring in fresh air under the wood basket
and save energy. It is not mandatory. In the case
of concrete floors, radiant floors, old buildings it
can be difficult to install. In this case, a similar air
supply can be acheived by opening a window or
by rebalancing the air exchanger. If you install an
air intake, make sure the duct is not trapped or
crushed by mistake. The air intake duct should be
extended to outside the building. It is forbidden to
leave an air intake end in a garage, attic or any
room mechanically ventilated with a negative
pressure.
9.2 Floor cutting: Cut a 7" to 8" hole through
the floor under the fireplace pedestal for the
passage of the outside air intake duct. Center the
hole as much as possible trying not to cut a joist.
9.3 Duct type and diameter: Use a 6" (150
mm) I.D. flexible duct covered by a fiber glass
insulating jacket with an integrated vapor barrier.
9.4 Sealing the wall vapor barrier: Following
the piercing of the exterior wall for the passage of
the air intake duct, seal the flexible duct vapor
barrier jacket against the exterior wall vapor
barrier. This will prevent ice built up inside the
wall. Use an adhesive aluminum tape.
9.5 Outside hood: Complete the installation by
connecting the duct to the hood assembly. Fix the
hood on the wall and seal the joint with silicone.
The hood should be fitted with a screen.
9.6
Connecting the air intake duct to the
fireplace pedestal:
against the sleeve located under the fireplace
pedestal. Use metal screws in addition to
aluminum tape or duct collars to fasten the duct.
10. Floor protection installation
10.1 Floor protection: When a fireplace is
installed directly on a combustible floor, an
incombustible protection must placed underneath
and extended around the fireplace to protect the
Inside, secure the duct
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