I had a new gas hot air furnace installed in my attic. The
installer/contractor sealed any obvious leaks in the 25 year old duct system
in my attic. My ceilings are well insulated.

Today, the outside temp is 55, in the garage (nonheated, non insulated) it
is 60, in the house it is 72 and in the attic the temp is 70.

Seems to me, the attic should be just about the same temp, maybe a tad
higher, than the garage.

How can I find out where my ducts are leaking? Can I do a "smoke test"
myself? Any suggestions?
--
Walter
www.rationality.net
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