D. Existing Class A Metal Chimney - Quadra-Fire DV400S Owner's Manual And Installation Instructions

DV400S DIRECT VENT ROOM HEATER
Before installing the liner system, the chim-
ney passageway should be cleaned and
examined to verify it is unobstructed and in
good structural condition.
Measure and record the chimney dimensions to
determine total flexible liner requirements.
Follow the liner manufacturer's instructions for
installing the liner in the chimney. Attach a flex-
ible liner puller to the liner and secure a rope
to the puller. One person should feed the liner
through the chimney, and another person should
pull the liner from the bottom, with the rope, guid-
ing the liner down the chimney. After feeding
the liner down the chimney, form a 90˚ angle and
bring the liner through the hole in the chimney
wall. (If running two liners, run the 6" liner first
and then the 4" inside of it.) Extend the liner
through the wall of the chimney and attach it to
the venting system extending from the top of the
Heater.
Construct a metal flashing large enough and
strong enough to cover the chimney opening
and support the Heater Vertical Termination Cap.
VTA
Masonry Termination
March 4, 2002
6" LINER (OPTIONAL)
SILICONE SEALANT
RIGID FLASHING
(ATTACHED TO CHIMNEY
WITH SCREWS WITH
SILICONE SEALANT
UNDERNEATH)
Figure 12
The flashing needs to fold down over and around
the outside of the masonry chimney so that it
can be secured to the chimney by 4 screws.
See Figure 12. The flashing will require a hole
at least 6 1 / 2 '' in diameter. (If using a 6" liner,
extend the 6'' flexible liner through the flashing
and attach it to the VTA (Vertical Termination
Adapter) with screws provided.) Secure the VTA
to the flashing with the screws provided and seal
the VTA/Flashing joint with a silicone sealant to
prevent moisture from running down the liner into
the chimney.
Attach the 4'' gas vent liner to the Vertical
Termination Cap with screws provided, then
attach the Termination Cap to the VTA with
screws provided. See Figure 12.
D. Existing Class A Metal Chimney Termination
In many cases where a Quadra-fire DV400S
is replacing a woodstove, much of the existing
Class A Metal Chimney can be incorporated into
the direct vent system.
The existing chimney must comply with
NFPA-211 codes and any local code require-
ments.
The chimney should be cleaned and exam-
ined to verify it is unobstructed and in good
structural condition. Any structural weak-
nesses such as cracks, leaky joints, corrod-
ed or warped surfaces can have an adverse
effect on the performance of this Heater and
should be replaced or repaired.
Whenever an existing Class A Metal Chimney is
on an outside wall, removal of the chimney and
the use of the minimum horizontal direct vent
termination kit may be less expensive.
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