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TW2000 WOOD-FIRED BOILER – INSTRUCTION MANUAL
TW2000 10/6/05
13
2.4.2 Flue Pipe and Chimney
The Boiler must be located to meet a minimum venting distance needed between
the Boiler and the flue. It should also be ducted so that there is a minimum
number of elbows used. The flue pipe must be installed with a gradual rise of ½”
or more per foot from the Boiler to the flue.
NEVER ALLOW THE SMOKE PIPE TO RUN DOWNHILL TO THE FLUE!
The smoke pipe and chimney must be at least 7 inches in diameter. The flue
pipe or a chimney may be of different cross-sectional area than that of the
appliance smoke pipe, provided that sufficient draft is available at the appliance.
Space must be provided around the smoke pipe and the back of the Boiler to
allow easy access for the purpose of cleaning. Smoke pipes must not be lighter
than 24 gauge black steel. All flue pipe must be securely fastened with at least 3
sheet metal screws at every joint, and properly supported.
Always meet or exceed flue pipe clearance specifications - 18” clearance from
flue pipe to combustibles in all directions.
Connect the boiler only to an approved chimney suitable for solid fuel appliances
and capable of venting the products of combustion. The chimney must be
installed with proper clearances above roof and from adjacent structures and
trees. If a masonry chimney is used it must be in good condition and be
equipped with a tile liner. Flue thimble or flue pipe must not extend into the
chimney flue, as it will reduce the draft.
Connect only to a flue or chimney capable of maintaining a negative draft of
between .02”w.c. min. and .05”w.c. max., at all times and conditions. To
maintain this draft, one or two draft regulators may be required. We recommend
that the KERR TW2000 Wood-Fired Boiler be connected to its own chimney.
However, two or more fuel fired appliances, other than fireplaces or incinerators,
may be connected to the same chimney.