D. CONNECTION TO A MASONRY CHIMNEY
1. 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. The size of the flue should be checked to de-
termine that it is not too large for the stove. For this stove, the flue should be no larger than 12” x 12”
or 12” in diameter. (8” x 8” or 6”-8” in diameter is recommended.) The internal cross-section of the
chimney must be at least 28 in. The chimney should also be checked to assure it meets the minimum
standards of the National Fire Protection Association (NFPA) Standard 211.
2. Thimble
. A thimble must be used when the connection from the stove is made through a combus-
tible wall to a masonry chimney. There are several methods to use for connection through a combus-
tible wall, two of which are illustrated in this manual. Local building authorities may be consulted or
NFPA 211 may be used for additional methods of chimney connection.
Also, listed prefabricated metal thimbles can be bought for use with coal stoves. The manufacturer’s
installation instructions for the thimbles must be strictly followed to assure the safety of the system. Be
sure to maintain the designated clearance to combustible materials
CONNECTION TO A MASONARY FIREPLACE
CONNECTION TO A MASONRY FIREPLACE
There are several kits available to connect the stove to a masonry fireplace. Look for a listed kit. The
kit is an adapter, which is installed at the location of the fireplace damper. The existing damper may
have to be removed to allow installation of the kit. The key points of this type of stove connection are
that the connector pipe must extend up the chimney above where the fire clay liner starts, and the ar-
eas of the kit installation and connector penetration should fit tightly and be sealed with high tempera-
ture furnace cement unless the kit’s instructions state otherwise. [See Figure 16:1.] The tight fitting
installation aids the proper draw of the chimney,
Summary of Contents for Swatara CS-85
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