Matrix Insert Installation and Operation Manual
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10.3
SUITABLE CHIMNEYS
Your wood insert will provide optimum efficiency and performance when connected to a 6-inch
diameter chimney liner. The connection to a chimney having a diameter of at least 5 inches
(Canada only) is permitted, if it allows the proper venting of combustion gases and that such
application is verified and authorized by a qualified installer. Otherwise, the diameter of the flue
should be 6 inches. The reduction of liner diameter to less than 6” should only be done if the total
height of the masonry chimney is greater than 20 feet.
10.4
LINER INSTALLATION
The use of a chimney liner (rigid or flexible) is recommended
to ensure the best performance. To ensure an optimal draft,
it is also strongly recommend adding a minimum of 12" rigid
liner between the top of the masonry chimney and the rain
cap. In all cases, liners should be installed in accordance with
the liner manufacturer’s instructions, including instructions
for extension above the masonry.
Use chimney liners listed UL 1777, ULC S635 or CAN/ ULC
S640.
In order to connect the insert to the liner, refer to section
«10.5 Chimney Liner Installation».
ATTENTION INSTALLER: When positioning the unit in a
fireplace opening prior to the flue installation, install the
insert into the opening until the top lip of air jacket is flush
with fireplace facing.
If lag bolts or anchors are to be used to secure the insert, the
hole locations should be marked with the unit in place.
Remove the insert and locate the anchors.
