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Problem: Down draft on chimney caused by one or more of the following.
• Cast iron damper in “CLOSED”
position.
• Open damper.
Possible Causes:
Remedies:
• Flue has a cold spot which
inhibits exhaust discharge from
rising properly.
• This problem may occur in factory built flues because the insulation
has settled or a seam has ruptured. In masonry flues, mortar loss
may be causing seepage of cooler outside air into the stack. Check
entire flue for structural integrity and leakage. Correct or repair as
needed, or replace or re-line the chimney.
• Remove obstruction.
• Increase chimney height.
• Increase chimney height.
• There is an obstruction outside
chimney, such as a tree.
• Flue is located too close to the
peak of the roof or does not rise
above it to provide the proper
draft.
• Flue is too close to another
building.
9.
• Check entire chimney system including stove pipe run. Utilize
chimney cleaning device to remove any obstruction or foreign
matter.
• Remove as necessary.
• Obstruction in chimney.
• Excessive ash accumulation.
Problem: Excessive smoke discharge from fuel door during reloading.
• Exhaust bypass rod is in
“CLOSED” position.
• Always pull the exhaust bypass rod completely out before opening
the loading door.
Possible Causes:
Remedies:
• Cast iron damper in the
“CLOSED” position.
• Open damper.
• See #6.
• See #6.
• Too many elbows.
• Excessively long stove pipe run
from furnace flue.
10.
• See #6.
• See #9.
• Excessive smoke accumulation.
• Insufficient draft.
Summary of Contents for SF2626
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