5
Encore
®
FlexBurn
®
2040 Non-Catalytic / Catalytic Wood Burning Stove
30005295
If you use an existing masonry chimney, it must be in-
spected to ensure it is in a safe condition before the stove
is installed. Your local professional chimney sweep, building
inspector, or fire department official will be able to inspect
the chimney or provide a referral to someone who can.
The chimney must extend at least 3’ (914 mm) above the
highest point where it passes through or near a roof, and at
least 2’ (610 mm) higher than any part of a building within
10’ (3 m) horizontally. (Fig. 3)
For proper draft and good performance, any chimney used
with a Encore
®
should extend at least 16’ (5 m) above the
flue collar of the stove.
2' Min.
2' Min.
3'
Min.
0 To 10'
3'
Min.
0 To 10'
AC617
RLTSKC8
2/11/98
Reference
Point
AC617
Fig. 3
The 2’-3’10’ Chimney Rule.
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 Temperature
(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 connector 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 305 mm) may experience
rapid cooling of smoke and reduction in draft, especially 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 stain-
less steel chimney liners and your Encore
®
are available
through your local dealer.
Chimney Connector Guidelines
A chimney connector is the single-wall pipe that con-
nects the stove to the chimney. The chimney itself is the
masonry or prefabricated structure that encloses the flue.
Chimney connectors are used only to connect the stove
to the chimney.
Single-wall connectors should be made of 24 gauge or
heavier steel. Do not use galvanized connector; it cannot
withstand the high temperatures that can be reached by
smoke and exhaust gases, and may release toxic fumes
under high heat. The connector may be 6" (152 mm) or 8
“ (203 mm) in diameter.
If possible, do not pass the chimney connector through
a combustible wall or ceiling. If passage through a com-
bustible wall is unavoidable, refer to the section on Wall
Pass-Throughs. Do not pass the connector through an
attic, a closet or similar concealed space. The whole con-
nector should be exposed and accessible for inspection
and cleaning.
Masonry Chimneys
An inspection of the chimney must confirm that it has a lin-
ing. 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. Openings
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 stan-
dards of your local building code or, in the absence of a
local code, to a recognized national code. Masonry chim-
neys must be lined, either with code-approved masonry or
pre-cast refractory tiles, stainless steel pipe, or a code-ap-
proved, “poured-in-place” liner. The chimney’s clean-out
door must seal tightly. A loose or leaky clean-out door can
weaken chimney draft, causing performance problems.
