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INSTALLATION ILLUSTRATION, ALL MODELS –VERTICAL CHIMNEY
CAUTION with ALL HEATERS & CHIMNEYS
Allow for adequate make-up air to enter the room where the burner operates. Allowing for a
opening of 140 square inches per gallon of fuel consumed is normal. Starving the burner of air is
more likely in smaller, and well insulated weather tight rooms.
In poor natural draft conditions a draft inducer placed near the
outlet can be used to improve poor draft conditions and
should be placed as near the roof as possible. Inducers will
pull air better than push it. A 1/4 HP like Grainger 4C732
or is suggested. Smaller HP inducers and squirrel cage
types will not be strong enough in some chimney installations.
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