Walter R. wrote:
I have a one story rancher. My NG furnace is in the attic above the
family room. It is very noisy because it sits right on a 1/2" plywood
platform on top of the floor joists in the attic.

I am replacing the furnace. What is the best way of making sure that
the new furnace will be very quiet?

Carpet underlayment? Thicker plywood? Special soundproofing material?
Put the furnace on springs?

Thank for any input

http://www.soundproofing.org/

May offer some helpful information and products.

--
Joseph Meehan

Dia duit