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#4 Installing into an existing chimney
This method provides excellent venting for normal
operation. This method also provides natural draft
in the event of a power failure. If the chimney
condition is questionable you may want to install a
liner as in method #7. Check with your local codes
to be sure a liner is not mandatory.
#5 Installing into an existing replace
chimney
This method provides excellent venting for normal
operation. This method also provides natural draft
in the event of a power failure.
The damper area must be sealed with a steel
plate or berglass. A cap should be installed on the
chimney to keep out rain. If the chimney condition
is questionable you may want to install a liner all
the way to the top as in method #6. Check with
your local codes to be sure a liner is not mandatory.
Fig. 10
Fig. 11
Venting