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E - Suport
F - Vent section
G - Vent
H - Fresh air intake
I - tee
Connecting to a conventional chimney
The stove may be connected to an existing Class A chimney or a masonry chimney which
meets the minimum requirements of NFPA 211. Using this kind of installation the pellet
stove is able to draft naturally without exhaust blower operation (failure), reducing the
probability of burn-back and back-drafting.
Check that the connection to the exhaust gas discharge channel is gas/smoke-tight, since
the appliance operates in a vacuum.
• If you wish to use an existing chimney it is strongly recommended that you have it checked
by a professional chimney sweep to ensure that it is completely airtight (Fig. 12). The reason
for this is that the smoke, because it is slightly pressurized, can infiltrate any cracks in the
flue and escape into living spaces. If upon inspection you find that the chimney is not
completely sound, a relining of the chimney with either PL vent or single wall stainless steel
pipe may be necessary to bring the chimney into compliance. If the existing chimney is wide
enough we recommend a pipe with a maximum diameter of 6" (15 cm).
Put attention: some areas require that a liner must be always installed to the top of the flue,
as shown in figure even if the existing chimney is in compliance (Fig. 13).
• When chimneys are relined, a chimney chase cap that reduces the outlet of the chimney to
the size of the liner is required. Extend the exhaust vent above the chimney chase cap and
finish it off with a
raincap.
A single wall liner may need to be insulated to maintain adequate exhaust temperatures in
the vent system.
Outside Chimneys frequently are difficult to keep warm: it is recommended that you
insulate the liner.
• Venting into the side of an existing masonry chimney must be done through a masonry
thimble. When wall penetration is necessary to access a masonry chimney, use a listed PL
vent wall thimble (Fig. 12-13).
• When venting into a Class A steel chimney, (Fig.14), use an appropriate PL Vent adapter.
Strictly observe the PL Vent manufacturer's safety specifications.
Install vent at clearances specified by the vent manufacturer.
Ensure that all installation work is carried out to professional standards.
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