Old 10-02-04, 08:02 AM
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Smile Furnaces

We are purchasing a new furnace. Our current furnace is probably 50+ years old and is running at 50% efficient. We also have a.c. Our compressor on the a.c. is fine; the a.c is not real efficient and we were told that the duct work was too small for the unit. One bidder told us that a variable furnace would solve the problem regarding our duct work and another bidder said we did not need to have variable furnace and a non-variable would do just fine. Does anyone have an insight on this question? Thank you. And bye the way it is getting cold here.
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Old 10-04-04, 04:22 PM
Ed Imeduc's Avatar
Join Date: Aug 2002
Location: Mountain Williams Missouri
Posts: 18,389
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Well a lot is in what you can spend are want to here. Get 3 bid for the job and make sure they run a heat loss and AC load on the home. You dont say where you are .Like a long winter and short summer go for a AFUE furnace of 90% and a AC of 12 to 14 SEER. If short winter long summer go for a furnace of AFUE 80% and a AC of 16 SEER.
V/S blower very good and a better heat in the home. if you think you will stay in the home for a time go for the better units for sure. That would be like Trane they have a 10 year warranty on every thing now if put in at the same time . For freon 22 in the AC unit you can buy freon 22 till the year 2030

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