2. RUN THE VENT SYSTEM THROUGH THE EXISTING CHIMNEY
OPTIONAL:
We recommend wrapping the first 3 ft. of the vent system below the termination cap with non-
faced fiberglass insulation (secure with wire) before running it through the existing chimney. This will prevent
cold air from coming down the existing chimney. DO NOT USE THIS METHOD IF YOU ARE STUBBING THE 3"
COMBUSTION AIR PIPE FROM THE BOTTOM OF THE EXISTING CHIMNEY!
NOTE: If there are offsets in the existing chimney, it may be easier to place a weighted rope around the end of
the each 3" pipe to guide them through it.
DO NOT ATTEMPT TO TIE ONE ROPE AROUND BOTH PIPES.
A. Guide the rope, if used, and flexible pipe(s) down the existing chimney. Figure E-2
B. To secure the chimney termination cap to the existing chimney, apply a liberal bead of sealant (provided)
around the top of the existing chimney. Set the termination cap into position as instructed in the vent system
installation manual.
OPTIONAL: #816-CL kits - Secure the termination cap to the existing chimney with the 2" self-tapping
screws and anchor straps provided. Screw holes are located at the sides of the termination cap.
C. From inside the opening, grasp the ropes and CAREFULLY pull the ropes down until the 3" exhaust pipe
and 3” combustion air intake, if using the ‘full connection method’, are into the existing fireplace.
D. STUB VENTING: From inside the fireplace, insert a minimum of 4' combustion air pipe (end without the
collar) past the damper opening and into the existing fireplace. See Figure E-3.
Figure E-2
Figure E-3
Minimum 4 ft. section
of 3
"
combustion air
flex pipe
DO NOT block pipe
end with insulation
or any other sealing
materials
3
"
Exhaust flex pipe
must be connected
to the collar on the
fireplace insert and
the termination cap
Seal area around
the vent pipes with
non-faced fiberglass
insulation
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