M&G DuraVent DuraLiner® - Manual (Page 6)

6
From the appliance up through the damper
area to the first flue tile, it is not mandatory
to insulate flex pipe. Above the first flue
tile, flex pipe must be insulated. NOTE:
For improved draft and fire safety, we
recommend ALL flex pipes be insulated
(Fig.5)- (See "Installing Insulation" later in
these instructions for detail).
in this document). Note: If using an Oval pipe,
this will need to be inserted prior to the plate.
DuraLiner is supported from the top, and the
top plate is designed to support the weight of
a relining system up to 50 feet (the minimum
height of the system must be at least 10-feet to
ensure proper drafting performance). (Fig.6)
Figure 6
TOP SUPPORT CLAMP
ASSeMbLY
Figure 5
zeRO CLeARANCe TO
MASONRY IN THIS AReA
IF INSULATION SLeeVe
IS USeD
FLUe TILe
STARTS
AT THIS
POINT
zeRO CLeARANCe TO
MASONRY IN THIS AReA
OPEN HEARTH INSTALL (Fig.1)
STEP ONE: Clear the flue of obstuctions
for Duraliner to be installed. If applicable,
remove the existing damper from your
fireplace (not needed) and in some cases part
of the smoke shelf to allow DuraLiner to pass
through this area freely.
Note: DuraLiner flex pipe is available in both
round and oval shapes to ease installation.
STEP TWO: Prepare the top of the Masonry
chimney and install the top plate assembly
(Reference "extend-A-Cap" instructions later
STEP THREE: Start with your first component
(flex pipe, rigid pipe, or tee). If a tee is used,
the branch may be removed for installation
(Fig.7).
TOP PLATe
Figure 7
DuraLiner pipe (flex and rigid) has male and
female connectors with (4) pre-punched holes
and slots that line up and are connected with
stainless steel pop rivets (Fig.8). Do not use
screws. When connecting sections of flex
pipe, it is necessary to first align the holes
with the slots, and then drill through the flex
ReMOVeAbLe
bRANCH AND
HARDWARe