"'nuther Bob" wrote in message
...
My current furnace is a 1985 model. If I buy a new furnace will I need
to recalculate the size of the cold air returns or will they be about
the same size for the new furnace?

A professional HVAC contractor can figure this out for you. If you
plan to replace the furnace, I'd skip the duct work you mentioned
and start there. BTW - unless that furnace is having problems, a
mid 80's 80% efficient unit is not too bad. It will be a long time
before a 90% efficient unit will have any payback - and by then
it will need replacement too. Don't fix it if it ain't broke.

Bob

Awwwwww......Depending on the OP's location that 90-92% furnace can/will pay
for itself.

It all depends.

--
kjpro
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( kjpro @ starband . net ) remove spaces to e-mail

Want it done yesterday? Or done right today, to save money tomorrow!!

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