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Question DetailsAsked on 8/22/2014

What is the best and most efficient central air unit?

Looking for a reviews on central air units regarding pricing and energy efficiency.

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2 Answers


Check out the Carrier Greenspeed system, top of the line ,high efficiency system. Variable speed Copeland Compressor, for better comfort and dehumidification in the summer.

Cut my bill and many of our customers by 30%.


Answered 6 years ago by bayareacool


I agree with BayAreaCool - for residential use, if I had to give a unit a preference over all others, that Carrier unit would probably be it. There are a number of good brands out there (and bad ones too) which I have given my thoughts on in prior HVAC posts, but Carrier seems to me to be the most reliable, long-lived of the economically priced units.

If I had to buy a unit to keep me alive on Mars or on an island miles and a very pricey service bill from the nearest repairman and needed the utmost reliability there are a couple of other very pricey brands which I would choose, but they specialize in clean room and hospital and similar environment situations so are NOT economic for a house. Otherwise, Carrier seems to have an unusually long lifespan - many times you see the cheapest brands such die in 5 years or so, but a LOT of Carriers go 20-25+ years with normal maintenance servicing and a few wear-and-tear type minor repairs, and I have seen both residential and commercial building units still going strong with the major components being 40-50 years old.

Answered 6 years ago by LCD

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