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Aspen Woodburning Stove
30000369
ST243
thinble connection
12/13/99 djt
Double-wall Chimney Connectors
The Aspen is approved for installation in the U.S. and
Canada with double-wall chimney connectors that have
been tested and listed for use with solid-fuel burning
appliances by a recognized testing laboratory.
Follow the instructions for assembling and installing
double-wall connectors provided by the manufacturer of
the double-wall chimney. To ease assembly and help
assure safety, use chimney components manufactured
by a single source.
NOTE: For installations using double-wall connec-
tors, minimum clearances must conform to those
listed in the clearance chart on Page 13.
Single-wall Chimney Connectors
• Beginning at the flue collar of the stove, assemble
the chimney connector. Insert the first crimped end
into the stove’s flue collar, and keep each crimped
end pointing toward the stove. Using the holes in the
flue collar as guides, drill 1/8” (3 mm) holes in the
bottom of the first section of chimney connector and
secure it to the flue collar with three #10 x 1/2” sheet
metal screws.
• Secure each joint between sections of chimney
connector, including telescoping joints, with at least
three sheet metal screws. The predrilled holes in
the top of each section of chimney connector serve
as guides when you drill 1/8” (3mm) holes in the bot-
tom of the next section.
• Secure the chimney connector to the chimney. In-
structions for various installations follow.
• Be sure the installed stove and chimney connector
are correct distances from nearby combustible mate-
rial.
NOTE: Special slip pipes and thimble sleeves that form
telescoping joints between sections of chimney con-
nector are available to simplify assembly. Slip pipes
eliminate the need to cut individual connector sections.
Consult your local dealer about these special connector
sections.
Securing the Single-wall Connector to a
Prefabricated Chimney
Follow the installation instructions of the chimney
manufacturer exactly.
Special adapters are available from your local dealer to
make the connection between the prefabricated chim-
ney and the chimney connector. The top of such adapt-
ers attach directly to the chimney or to the chimney’s
ceiling support package. The bottom of the adapter is
secured to the chimney connector.
The adapter forms a union between the chimney and
chimney connector that ensures any soot or creosote
falling from the inner walls of the chimney will stay
inside the chimney connector.
Securing the Single-wall Connector
to a Masonry Chimney
The Aspen may be connected to either a freestanding
masonry chimney or to a fireplace masonry chimney.
Freestanding Installations
If the chimney connector must pass through a combus-
tible wall to reach the chimney, follow the recommenda-
tions for Wall Pass-Through construction on pages 7-8.
The opening through the chimney wall to the flue - the
“breech” – must be lined with a ceramic or metal
thimble which is securely cemented in place.
A metal pipe section called the “thimble sleeve,” slightly
smaller in diameter than standard connector and the
thimbles, will allow the removal of the chimney con-
nector system for inspection and cleaning. Thimble
sleeves are available from your local dealer.
To install a thimble sleeve, slide it into the breech until
it is flush with the inner flue wall. Be sure that it does
not extend into the flue passage where it could interfere
with the draft.
The thimble sleeve should protrude 1-2” (25-50 mm)
into the room. Use furnace cement and thin gasketing
to seal the sleeve in place in the thimble. Secure the
chimney connector to the outer end of the sleeve with
sheet metal screws.
Chimney
Connector
Thimble Sleeve
Fig. 6 The thimble, made of either ceramic or metal, must be
cemented securely in place.
Flue
Keep sleeve
end flush with
flue tile
ST243