Version 1.03
April 2011
Chinook CBT
Page 16
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OM CK24C/CK24F
Chimney connector sections must be attached to the
stove and to each other with the crimped end toward the
stove (Fig. 8). This allows creosote to run into the stove
and not onto the outside of the pipe. All joints should be
secured with three metal screws. Otherwise, in the
event of a creosote fire, the connection may vibrate
apart. Horizontal lengths of chimney connector should
have an upward slope from the stove of 1/4 inch per
foot.
CONNECTION TO A MASONRY CHIMNEY
Should the stove be connected to a masonry chimney, the chimney should be examined for cracks, loose
mortar, other signs of deterioration, and blockage. The stove should not be installed until it is determined
that the chimney is safe for use. Since an oversized flue contributes to the accumulation of creosote, the
size of the flue should be checked to determine that it is not too large for the stove. For this stove it is
recommended that the flue size should not exceed the overall area of a 6” flue (28.3 square inches).
Blaze
King recommends the use of a Stainless steel liner, preferably insulated, inside a masonry
chimney. This to maintain proper draft and better operation of the unit.
The chimney should also be checked to assure it meets the minimum standards of the National Fire
Protection Association (NFPA) Standard 211. Following is a list of the more critical minimum requirements
for a properly constructed chimney.
1.
The masonry wall of the chimney, if brick or modular block, must be a minimum of 4 inches nominal
thickness. A mountain or rubble stone wall must be at least 12 inches thick.
2.
The chimney must have a fire clay flue liner (or equivalent) with a minimum thickness of 5/8 inch and
must be installed with refractory mortar. There must be at least 1/2-inch air space between the flue liner
and the chimney wall (Fig. 9). An equivalent liner might be a listed chimney liner system or other
approved material.
3.
A chimney inside the house must have at least 2 inches of clearance to the combustible structure. A
chimney outside the house must have at least one-inch clearance to the combustible structure. Fire
stops must be installed at the spaces where the chimney passes through floors and/or ceiling (Fig. 10).
Remember that insulation must not contact the chimney. There must be air space around the chimney.
Insulation must be 2 inches or more from the chimney (Fig. 11).
4.
A chimney must be the required height above the roof or other obstruction for safety and for proper draft
operation. The requirement is that the chimney must be at least 3 feet higher than the highest point
where it passes through the roof and at least 2 feet higher than the highest part of the roof or structure
that is within 10 feet of the chimney,
measured horizontally (Fig. 12).
Fig.8 Flue Gas Direction
INSTALLATION INSTRUCTIONS - VENTING
Minimum 2” clearance for
interior chimney
Fig. 9 Masonry Chimney Construction
Fig.10 Fire Stopping
½”
Air Space
⅝”
Fireclay
Flue Liner
Chimney Wall
4” (Nominal)
Flue
Foundation
