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8. The Venting System
8.1 General
The venting system, made of the chimney and the connecting pipe between the stove and the
chimney, acts as the engine that drives the wood heating system. Even the best stove will not
function safely and efficiently if it is not connected to a suitable chimney.
The heat in the flue gases that pass from the stove and chimney connector into the chimney is
not waste heat. This heat is what the chimney uses to make the draft that draws in combustion
air, keeps smoke inside the stove and safely vents exhaust to outside. The heat in the flue gas
can be seen as the fuel the chimney uses to create draft.
8.2 Suitable Chimneys
This stove will provide optimum efficiency and performance when connected to a 6" diameter
chimney flue system. The connection to a chimney having a diameter of at least 5" (Canada
only) or no more than 7" is permitted, if it allows the proper venting of combustion gases and
that such application is verified and authorized by a qualified installer. Otherwise, the diameter
of the flue should be 6".
To be suitable, a factory-built metal chimney must comply with UL 103 HT (U.S.A.) or ULC S629
(Canada).
8.2.1 Factory-Built Metal Chimneys
These
are
sometimes
temp' chimneys because they have the specific
characteristics to withstand the temperatures that
can be created by wood burning stoves. Factory-built
chimneys are tested as a system with all the necessary
components for installation. The instructions provided
with the chimney by its manufacturer are the only
reliable source of installation guidelines. To be safe
and effective, the chimney must be installed exactly
in accordance with the manufacturer's instructions.
Only components intended for the brand and model
of chimney shoud be used. Never fabricated or
substitute parts from other chimney brands. The
chimney must be a type suitable for solid fuel.
Page 36
referred
to
as
'high
Installation and Operation Manual - Harmony 2.3
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