Specifications
FLUE PIPE AND CHIMNEY
The Boiler must be located as close as possible to the chimney. It should be ducted so that there
is a minimum number of elbows used. The ue pipe must be installed with a gradual rise of 1/2” or
more per foot from the Boiler to the chimney.
WARNING - NEVER ALLOW THE FLUE PIPE TO RUN DOWNHILL TO
THE CHIMNEY.
The ue pipe and chimney must be at least 8 inches in diameter, on the smaller sizes and 12” on
the two larger sizes. The ue pipe or chimney may be of different cross-sectional area than that of
the appliance ue collar, provided that sufcient draft is available at the appliance. The chimney
should be low heat masonry or listed type HT pre-fab.
Space must be provided around the ue pipe and the back of the Boiler to allow easy access for
the purpose of cleaning. Flue pipes must not be lighter than 24 gauge black steel. All ue pipe
must be securely fastened with at least 3 sheet metal screws at every joint, and properly support-
ed.
Always meet or exceed ue pipe clearance specications -18” clearance from ue pipe to com-
bustibles in all directions.
Connect the boiler only to a chimney suitable for solid fuel appliances and capable of venting the
products of combustion. Do not connect the boiler to a chimney ue serving another appliance.
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 ue pipe must not extend into the chimney ue, as it will reduce the draft.
Connect only to a ue 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. To measure the draft, a gauge is needed to show negative pressure in inches of
water column. Place a 1/4” hole between the boiler and the draft regulator.
WARNING - IF THIS SETTING IS ExCEEDED IT COULD CAUSE A
SOLID FUEL FIRE TO BURN OUT OF CONTROL.
When installing a wood-burning appliance to an existing chimney carefully inspect entire chimney
for the presence of old inlet holes, which may be improperly covered by metal caps or other unac-
ceptable means. Fill any openings with brick and mortar to ensure no hazardous openings exist.
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