Installation
12
Fill TherMix
to within
four inches from the chimney top. Slip a full
or partial length of any standard clay tile
over the . Fill the gap
between the outside of the tile with mortar or
crown mix and form a slope to the outside of
the top course of bricks. Fill the gap between
the and the tile with
TherMix
and seal the last inch with mortar
or crown mix. A may be
terminated anywhere within the tile, as long
as it protrudes at least four inches into the tile.
Attach a UL Listed rain cap to the clay tile.
DuraVent Flex Liners have been tested and
are listed by Underwriters Laboratories, Inc
(UL) to UL 1777 and ULC-S635 standard
at zero clearance to combustibles and for
use with all fuels. When venting wood red
heaters or replaces, a minimum of one
inch TherMix
®
or at least 1/2" of ProFoil
are needed to conform to the UL1777 and
ULC-S635, zero clearance listing.
All temperature tests were performed on
chimneys featuring a 4” nominal masonry
shell and a DuraVent Flex Liner with or
without the specied insulation between the
liner and interior of the chimney (no clay tiles).
The outside of the chimney was surrounded
with a wood enclosure at zero clearance as
specied by the standard.
TherMix
is poured into the chimney AFTER
the ex liner is installed. TherMix
is a pre-
mixed insulation material and only requires
the addition of water at the job site. Review
TherMix
literature to determine the volume of
TherMix
needed to ll a specic chimney.