DuraVent DuraLiner Installation - Manual (Page 12)

12
Do not construct chases or other enclosures
around DuraLiner pipe sections which extend
above the masonry.
LINER
1/2" OF
PROFOIL
ALUMINUM
TAPE
PROMESH
CLAMP
Figure 20
Figure 19
NO DURALINER PIPE
JOINT ABOVE CLAMP
and trim the blanket so that the flex end rings
are exposed. Wrap the insulation around the
liner lengthwise and trim it so that a butt joint
is formed. Seal the joint with aluminum foil
tape. Spray adhesive may be used to hold the
blanket in place until it can be secured with
the foil tape. A minimum of 1/2" of insulation is
required. Install ProMesh protective wire mesh
over the blanket(s). The ProMesh is used to
protect the ProFoil insulation as the liner is
lowered into the chimney. Slip the ProMesh
over the insulated liner and secure one end
with a stainless steel band clamp. Pull the
ProMesh towards the other end of the liner so
that it tightens snugly around the insulation,
then trim off the excess. Secure this end with a
stainless steel band clamp or alum tape.
Figure 18
CAP AND SPARK
ARRESTOR
STORM COLLAR
CLAMP
BASE
INSULATING FLEX
Duravent requires flex be insulated above
the first Masonry flue tile, and strongly
recommends ALL Flex pipe be insulated.
Method #1: PROFOIL (Fig.20)
Roll out the insulation blanket on a clean
surface, foil face down. Lay the flex liner on top
Method #2: INSULATION SLEEVE
Slip the Insulation Sleeve over the flex
pipe. Install the bottom insulation sleeve
clamp, and push the top of the sleeve down
4"-6". Position clamps so the nut and bolt
connections are pointing towards the corner of
a rectangular chimney.
NOTE:
MOISTURE MUST NOT
ENTER THE LINER
SYSTEM!