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Posted by Darrel Cheney on January 23, 2008 at 08:15:56:
I have a problem that developed this heating season after 21 yrs. I Have a boiler pipe that runs through a floor joist and whenever that zone calls for heat this pipe expands causing it to bang slightly as it slides through the joist. This is a hard to reach area as far as opening the hole up larger. Is there anything I can put on this pipe to quiet this down?