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Vermont Castings Vigilant
2000898
A
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ST562
Chimney hazards
12/14/00 djt
ST562
Fig. 6 Existing chimney.
D. Blockage within flue; remove.
E. Improper clearance between chimney and com-
bustible materials. Generally, a clearance of 2” (50
mm.) is required to all combustible walls and framing
members; check local codes.
F. Improper clearance between smoke chamber and
adjacent framing members; check local codes.
G. Creosote accumulation; chimney needs thorough
cleaning.
H. Structural deterioration of the fireplace; must be
repaired before use.
I. Loose or broken bricks or mortar; replace and
remortar.
J. Loose or broken clean-out door; repair or replace.
Existing masonry chimneys, especially older ones, may
have two or more openings through the chimney walls
to the same flue. The openings were used to connect
stoves in different rooms to the chimney. The unused
openings must be sealed with masonry to the thickness
of the chimney wall. Unused openings sealed with
pie plates or wallpaper are a hazard. In the event of a
chimney fire, flames and smoke may be forced out of
these unused thimbles.
DO NOT CONNECT YOUR STOVE OR INSERT TO A
CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
Chimney Size
When outfitted with the standard 6” (150 mm) flue col-
lar, The Vigilant II Coal Stove is designed to perform
well when vented through flues that have these dimen-
sions:
Prefabricated
Round Liner, I.D. 6” (150 mm)
Masonry
Square Liner 8” x 8” (nominal)
Rectangular Liner 7” x 11” (nominal)
Round Liner 6” (inside dimensions)
A Vigilant II Coal Stove equipped with the optional 8”
(200 mm) flue collar is designed to perform well when
vented through flues that have these dimensions:
Prefabricated
Round Liner 8” (inside dimension)
Masonry
Square Liner 8” x 8” (nominal)
Rectangular Liner 8” x 12” (nominal)
Round Liner 8” (inside dimensions)
CHIMNEYS WITH LINERS LARGER THAN 8” X 12”
MAY EXPERIENCE RAPID COOLING OF COMBUS-
TION GASES AND REDUCTION IN DRAFT, ESPE-
CIALLY IF THEY ARE LOCATED OUTSIDE THE
HOME.
These large chimneys may need to be insulated or the
flues re-lined for good stove performance. Vermont
Castings offers chimney lining accessories to help
make the connection between stainless steel chimney
liners and our stoves and fireplaces.
If you are planning to vent a small stove into a large
flue, particularly an exterior masonry flue, you may find
it necessary to insulate the chimney, reline the chimney,
or operate the stove with the damper open to maintain
high flue temperatures.