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Thread: 94 or 80?
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03-09-2005, 09:04 PM #1
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In replacing a furnice, we were told that the existing ducts would not handle an 80% furnice but that they would do fine on a 94%.
Any idea why this is the case? or is it that they just want to sell a 94% furnice?
Thanks
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03-09-2005, 09:13 PM #2
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air doesn't care where it comes from. as long as it's sized (duct & furnace) correctly the furnace doesn't matter. i think they want to sell you the 94%er.
FILL OUT YOUR PROFILE!!
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03-09-2005, 09:14 PM #3
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never heard of a 94% furance.cfm is cfm no matter what the %
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03-09-2005, 09:16 PM #4
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Originally posted by hot wired
never heard of a 94% furance.cfm is cfm no matter what the %
I think he is talking about a 90% furance.
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03-09-2005, 10:12 PM #5
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Yea, sounds like horsehockey to me too.
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03-09-2005, 10:17 PM #6
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Either an 80% , or 94% efficient furnace can be sized correctly to your existing ductwork. The 90% + model is more efficient, and requires extra venting and condensate issues. The ductwork reasoning is not an issue , and I would recomend at least 2 other bids,based on that reasoning. Most reputable companies will give you a free estimate, at least here they do.
never say never
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03-09-2005, 10:18 PM #7
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Ask them to put it in writing, then find another contractor.
Doesn't carrier claim up to 94% on their high end VS units.
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03-09-2005, 10:32 PM #8
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Yes I agree, 94% could be a generalization (or lie) about actual efficiency. Generally, the rating of high eff. equipment by each manufacturer varies by the model #. The smaller units (40k - 60k btu,s ) have the higher eff. ratings, while the larger units have a lower eff. rating. Ask your contractor for specific ratings. Keep in mind unit must be properly sized & installed& adjusted to achieve these ratings.
never say never
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03-09-2005, 10:46 PM #9
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I posted this in a thread the other day, I dont have the link right now but if you will go to the web site of "consumer reports" in their home and garden section they have a page that can answer all of the questions you may have
also go to the energy star web site
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03-09-2005, 10:51 PM #10
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http://www.consumerreports.org/main/...=1110426474642
it is a long link but I did a C&p and tried it and it is the link you need
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