Vermont Castings Encore 2550 Installating And Operation Manual page 5

What Kind of Chimney to Use
You must connect the Encore to a code-approved
masonry chimney with a flue liner, to a relined masonry
chimney that meets local codes, or to a prefabricated
metal chimney that complies with the requirements
for Type HT chimneys in the Standard for Chimneys,
Factory-Built, Residential Type and Building Heating
Appliance, UL 103. (Fig. 3) The chimney and chimney
connector must be in good condition and kept clean.
A prefabricated double-
wall insulated chimney
A tile-lined
masonry
chimney
ST241
Fig. 3 Approved chimney types.
If you use an existing masonry chimney, it must be
inspected to ensure it is in a safe condition before the
stove is installed. Your local professional chimney
ST241
sweep, building inspector, or fire department official will
chimney types
12/13/99 djt
be able to inspect the chimney or provide a referral to
someone who can.
The chimney should extend at least 3' (914 mm) above
the highest point where it passes through a roof, and at
least 2' (610 mm) higher than any portion of a building
within 10' (3 m). (Fig. 4)
For proper draft and good performance, any chimney
used with an Encore should extend at least 16' (5 m)
above the flue collar of the stove.
0 To 10'
2' Min.
3'
Min.
Reference
Point
Fig. 4 The 2'-3'-10' Chimney Rule.
AC617
RLTSKC8
2/11/98
2000956
0 To 10'
2' Min.
3'
Min.
AC617
Encore Woodburning Stove
Masonry Chimneys
An inspection of the chimney must confirm that it has
a lining. Do not use an unlined chimney. The chimney
should have no cracks, loose mortar, other signs of
deterioration, and blockage. Repair any defects before
the chimney is used with your stove.
Unused openings in an existing masonry chimney must
be sealed with masonry to the thickness of the chimney
wall, and the chimney liner should be repaired. Open-
ings sealed with pie plates or wallpaper are a hazard
and should be sealed with mortar or refractory cement.
In the event of a chimney fire, flames and smoke may
be forced out of these unused thimbles.
The chimney should be thoroughly cleaned before use.
A newly-built masonry chimney must conform to the
standards of your local building code or, in the absence
of a local code, to a recognized national code. Masonry
chimneys must be lined, either with code-approved
masonry or pre-cast refractory tiles, stainless steel
pipe, or a code-approved, "poured-in-place" liner. The
chimney's clean-out door must seal tightly.
Prefabricated Chimneys
A prefabricated metal chimney must be one tested and
listed for use with solid-fuel burning appliances to the
High-Temperature (H.T.) Chimney Standard UL-103-
1985 (2100°F) for the United States, and High Temper-
ature (650°C) Standard ULC S-629 for Canada.
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE
SERVING ANOTHER APPLIANCE.
Chimney Size
An Encore with an 8" (203 mm) flue collar is approved
for venting into a masonry chimney with a nominal flue
size of 8" x 8" (203 x 203 mm) or 8" x 12" (203 x
305 mm), and into a round flue with nominal flue size of
8" (203 mm). An Encore with a 6" (152 mm) flue collar
is approved for venting into a masonry chimney with a
nominal flue size of 8" x 8" (203 x 203 mm), and into a
round flue with nominal flue of 6" (152 mm).
NOTE: When installed with a 6" flue collar, the
Encore may not be operated with the front doors
open.
Whatever the flue collar size, an Encore may be vented
into larger chimneys as well. However, chimneys with
liners larger than 8" x 12" (203 x 305mm) may experi-
ence rapid cooling of smoke and reduction in draft, es-
pecially if the chimneys are located outside the home.
These large chimneys may need to be insulated or
have their flues relined for proper stove performance.
Accessories to help make the connection between
stainless steel chimney liners and your Encore are
available through your local dealer.
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