1) I'm getting a new oil furnace in the basement, and the installerwants to put a brick under each corner. ?? Is this something old-timers do? Is it a good idea?Are the bricks to prevent rusting? There has been water in thebasement on several occasions but it only made it to the furnace whenthe furnace itself was leaking, that is, condensate from the AC wasoverflowing. And when the water heater leaked, but that's in a pannow. I've learned all the ways water can get on the floor and I don'tmake the same mistakes anymore. The current furnace about 25 yearsold only has a little bit of rust at the floor. Why would brickshelp?2) I also read somewhere, "NOTE: If you live in the South, you mustseal all joints, and insulate all the new ductwork leaving thefurnace." Why just the south? Are joints in hvac ductwork normallysealed with caulk? For that matter, what about joints in the 6" round metal flue pipes?TIA

Also, what do you call those things in the main ductwork that aremostly vinyl, 6 inches high, that clamp on to the ducts at each end?Are they there to keep noise from getting into the ducts, or are theythere to make up for misalignment of the furnace and the ducts. Thanks again.

Bricks under the furnace?

Nov 27, 2010 41 Replies

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Steve Barker 15 years ago

My guy uses that gray stuff on all my jobs.

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Rick 15 years ago

Thanks a lot for the advice about bricks. I enjoyed your chit-chat too.

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