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Page 10
February 4, 2005
Isle Royale Wood Stove
250-5763B
Thimble Assembly:
12" (305mm) of brick
separation between
clay liner and
combustibles.
Fireclay liner 5/8"
(16mm) Minimum
or Equivalent.
Sill support
Header
Wood Stud 2"
(51mm)
Clearance
from chimney
wall
Fireclay liner 5/8"
(16mm) Minimum
or Equivalent.
FLUE SYSTEMS
Figure 10A - Chimney Connector
FLUE
GAS
DIRECTION
CRIMPED
END
TOWARDS
STOVE
T
here are two separate and different parts to a flue system: the
chimney connector and the chimney itself.
1. Single wall connector or stovepipe. This must be at least
24 gauge mild steel or 26 gauge blue steel. The sections
must be attached to the stove and to each other with the
crimped (male) end pointing toward the stove.
See Figure
10A
. All joints, including the connection at the stove collar,
should be secured with three sheet metal screws. Make
sure to follow the minimum clearances to combustibles as
set out on
pages 6 and 7
of this manual. Where passage
through the wall, or partition of combustible construction
is desired, the installation shall conform to CAN/CSA-
B365.
2. Factory-built listed chimney connector (vented). A listed
connector (vented) must be used when installing this unit
in a mobile home. A listed chimney and listed connector
must be used. they must conform to each other to ensure
a proper fit and seal.
MASONRY CHIMNEY
Figure 10B
For optimal performance, masonry chimneys used to vent this
appliance should be lined with a 6 inch stainless steel liner.
Installations into a clay flue without a stainless steel liner may
reduce efficiency, cause the glass to darken, and produce
excessive creosote.
Ensure that a masonry chimney meets the minimum standards
of the National Fire Protection Association (NFPA) Standard
211. It must have at least a 5/8 inch (16mm) fire clay liner or
a listed chimney liner system.
See Figure 10B
. Make sure
there are no cracks, loose mortar or other signs of deteriora-
tion and blockage. It is best to have the chimney inspected
by a professional and be sure to have the chimney cleaned
before the stove is installed and operated.
The flue should be checked to determine that it is
not
t
oo large
for the stove. NFPA 211 allows the cross-sectional area of
the flue to be no more than 3 times the cross-sectional area
of the flue collar of the stove (28 x 3 = 84 square inches). It
is recommended that a chimney with a larger diameter be
relined, since the oversized flue can cause poor performance
and contribute to the accumulation of creosote. (See
page 24
for more information about troubleshooting draft problems).
CAUTION! DO NOT CONNECT THIS UNIT TO A
CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
When connecting the stove through a combustible wall to a
masonry chimney, special methods are needed. There are
several ways to make this connection, including the construc-
tion of a masonry thimble. This installation shall conform to
CAN/CSA-B365. Check with your local building authorities
or consult the National Fire Protection Association (NFPA
211). Refer to
Figure 11B (page 11) and Figures 12A &
12B (page 12).
WARNING! IF INSTALLING THIS MODEL TO A MASONRY CHIMNEY, ALWAYS BE SURE THE CHIMNEY IS IN GOOD CONDITION AND THAT IT
MEETS THE MINIMUM STANDARDS OF THE NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) STANDARD 211.
THIS APPLIANCE IS MADE WITH A 6 INCH/152mm DIAMETER CHIMNEY CONNECTOR AS THE FLUE COLLAR ON THE UNIT. CHANGING
THE DIAMETER OF THE CHIMNEY CAN AFFECT DRAFT AND CAUSE POOR PERFORMANCE. IT IS NOT RECOMMENDED TO USE
OFFSETS OR ELBOWS AT ALTITUDES ABOVE 4000 FEET ABOVE SEA LEVEL OR WHEN THERE ARE OTHER FACTORS THAT AFFECT
FLUE DRAFT.
