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through a combustible wall. A commonly used
method to pass through a wall directly to a masonry
chimney is to clear a minimum 12"(300 mm) around
the entire chimney connector, and 9ll it with brick
masonry which is at least 3.5"(90 mm) thick. A
9reclay liner, minimum 3/8" (9 mm) wall thickness
must run through the brick wall to the chimney
liner (but not beyond the inner surface of the liner).
It must be cemented in place with refractory cement.
is method is illustrated. For details on the other
three options, refer to the most recent edition of the
NFPA 211 code.
U.S. Wall Pass-Through
Wall Pass-Through: Canada
ree methods are approved by the Canadian
Standards Association.
paragraph shows one method requiring an 18"
(450mm) air space between the connector and the
wall. It allows use of one or two covers as described
in the diagram.
e two other methods are described
in detail in the current issue of CAN/CSA B365, the
national standard.
e diagram following this
Canadian Wall Pass-Through
BOILER LOCATION
Your SF170/SF270 boiler will radiate a good deal
of heat.
is heat can be dangerous if the boiler is
improperly installed.
A fire could be started if the boiler is
installed too close to walls,
furniture, carpet or draperies.
e boiler must stand on a noncombustible
material such as brick, stone tile or concrete.
Eoor needs to be Eat and must be able to support the
boiler's weight, the weight of the Euid in the system,
plus the weight of piping and other a=achments.
NEVER place a boiler directly on a wood Eoor. If a
noncombustible material is used under the boiler to
protect a combustible Eoor, than this material must
extend at least 12 inches beyond the base of the
boiler in the rear and on the sides and at least 36
inches in front. Floor protection must also extend 2
inches beyond Eue connecting pipe also. See the
Eoor protection diagram that follows for installation
guidelines.
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e
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