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Posted by boo on January 21st, 2003 03:07 PM
In reply to Banging Furnace by Diana on January 21st, 2003 06:08 AM [Go to top of thread]

The ducting is shrinking when the heat go's off. You need to find where the banging is coming from and trim the ducting so that it doesn't catch on the other ducting. The duct work needs to be able to expand and contract and it isn't able too.

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