Installation

10
DuraVent Flex Liners from here to the top.
Alternatively, the Base Plate (BP) and the
Sleeve (SL) can anchor the liner at the top
of the smoke chamber and seal the gap
between the liner and masonry. The BP can be
supported by wedging it into mortar joints or
by supporting it with steel rods. When trimming
the BP, make sure that the hole in the plate
is centered in the ue. Attach the SL to the
, then lower it until the
male end of the SL is seated in the Base Plate.
When venting a stove or insert through a
replace and into a chimney, a
 can provide a continuous ue from the
heater to the top:
Ovalize the bottom 4 or 5 feet of the
 so that the ovalized portion of
the liner ts through the damper and into the
rebox (refer to Tech Bulletin L1009 for cross
sections). Connect the heater with an oval



Seal the area at the top of the smoke chamber
by lacing strips of ceramic blanket insulation
with refractory cement and packing them tightly
between the bottom of the liner and masonry
(sealing plug). Keep the liner centered. Insulate
