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Vermont Castings Seville
30001490
Masonry Chimneys, cont'd.
• 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
standards of 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 precast refractory tiles,
stainless steel pipe, or a code-approved, "poured-in-
place" liner. The chimney clean-out door must seal
tightly to ensure a good draft.
Prefabricated Chimneys
A prefabricated metal chimney must be one that is
tested and listed for use with solid-fuel burning appli-
ances to the High-Temperature (H.T.) Chimney Stan-
dard UL-103-1985 (2100° F.) for the United States, and
High Temperature (650°C) Standard ULC S-629 for
Canada.
Chimney Size
This Seville is approved for venting into a masonry
chimney with a nominal flue size of 8" x 8" (203 x
203mm), and into a round flue size of 8" (203mm) or 6"
(152mm). It may be vented into larger chimneys as
well, however, chimneys with liners larger than 8" x
12" (203 x 305mm) may experience rapid cooling of
smoke and reduction in draft, especially if they are
located outside the home. Such large chimneys may
need to be insulated or relined for proper stove perfor-
mance.
Chimney Connector Guidelines
A chimney connector is the double-wall or single-wall
pipe that connects the stove to the chimney. The
chimney itself is a masonry or prefabricated structure
that encloses the flue. Chimney connectors are used
only to make the connection from the stove to the
chimney. They are for interior use only.
Double-wall connectors must be tested and listed for
use with solid-fuel burning appliances. Single-wall
connectors should be made of 24 gauge or heavier
steel, and should be 6" (152mm) in diameter. Do not
use galvanized chimney connector; it cannot withstand
the high temperatures that can be reached by smoke
and exhaust gases, and may release toxic fumes
under high heat.
If possible, do not pass the chimney connector through
a combustible wall or
ceiling. If passage
through a combustible
wall is unavoidable,
refer to the recommen-
dations in the section
following on Wall
Pass-throughs. Do not
pass the connector
through an attic, a
closet or any similar
concealed space. The
whole chimney con-
nector should be
exposed and accessible for inspection and cleaning.
Install the single wall chimney connector not less than
18" (457mm) from the ceiling. Keep it as short and
direct as possible, with no more than two 90 degree
turns. If possible, use 45° elbows. Slope horizontal
runs of connectors upward 1/4" per foot (20mm per
meter) going from the stove toward the chimney. The
recommended maximum length of a horizontal run is 3’
(914mm), and the total length of chimney connector
should be no longer than 8’ (2.4m).
In cathedral ceiling installations, extend the prefabri-
cated chimney downward to within 8’ (2.4m) of the
stove.
SAFETY NOTE: Always wear gloves and protective
eyewear when drilling, cutting or joining chimney
connector sections .Chimney Connectors
Flue gas
direction
Toward
stove
Fig. 4 Chimney connector.
Do not connect this unit to a chimney flue
serving another appliance.
NOTE: Do not vent this stove into a factory-built
(zero-clearance) fireplace. This stove has not
been tested and listed for that type of installa-
tion. Factory-built fireplaces and their chim-
neys are specifically designed as a unit for use
as fireplaces. It may void the listing or be
hazardous to adapt them for any other use.
Do not connect the stove to any air distribution
duct or system.