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Posted by steve h2 on March 11, 2005 at 19:09:56:
Hello,
I have a 11 year old Burnham boiler (oil/steam) and when it starts up to heat it sounds fine. When it shuts off, it rumbles, noticeably enough that the house seems to tremble a little. Some times it happens every 10-20 minutes and then repeats itself. I know its cold out but this has been happenning for a week now. Does anyone know what causes this shut down rumble? Thank you.
steve H2