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Post Info TOPIC: central air or heat pump


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central air or heat pump


I have central A C and gas furnace. After serveral refills of Freon I found the A coils have many leaks and is not repairable.  Should I go with a new A coil on a 15 year old unit, a whole new AC and furnace, or put in a new heat pump with gas backup?  The winter temp here is in the teens. How does a heat pump work?  I am ready to spend about $5000.  Any reply will be appreciated.   Herb



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I dont know anything about heat pumps, but I think it would be a lot more than 5Gs...could be wrong

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A heat pump gets very inefficient in temps below 32-35* F. I'm assuming that you have ducts and forced hot air. A good gas furnace is up to 94% efficient while the heat pump is at something well less. Take a look here https://answers.yahoo.com/question/index?qid=20081205193410AAjie6X (you will have to copy and paste, sorry)

As a note, I know one daughter in Richmond, VA - her heat pump/air costs her a small fortune every winter in both maintenance and operation plus her house is never warm



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Dave W (Irelands Child/IC2)

Quando omni flunkus, moritati (When all else fails, play dead - R Green)



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My $0.02 - - I've had heat pumps at three houses. Two houses, including the one we are in now, had a large unit that served the entire house but one house in the Hill Country had three window units. I have been very satisfied with all of them, HOWEVER, as Dave mentioned, our temps don't get down like our Northern neighbors do. I think I would go with Dave's advise on this, because our winters are about 2 months long and very seldom do we get a hard freeze.

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You would be money ahead to just replace the central unit you have with a new, more efficient one; technology has come a long way in the last fifteen years, and as Dave said, heat pumps are expensive to buy and to operate.

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I must admit that my reasons for using the heat pumps in the first place was because I did not want Gas or Propane piped into my home. When we were in the Hill Country I even sold the Propane tank and used the window units. Just weird me I guess?

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Mello Yello wrote:

I must admit that my reasons for using the heat pumps in the first place was because I did not want Gas or Propane piped into my home. When we were in the Hill Country I even sold the Propane tank and used the window units. Just weird me I guess?


 I have gas HW and heat with window units for a/c (no ducting, baseboard HW) and reasonable for my area gas and electric rates though nationwide, ridiculous. When the temps get below 32-35 or so - and believe me that here in Yankeeland, it stays that way from mid-Dec until April. There just is not enough latent heat in the air which means you need an alternate source of energy. Usually then electric resistance coils and the duct blowers supply the heat. Now how many watts are those resistance heaters and what is the cost per KWH in a particular area to maintain a comfortable home for a family. Ya gotta do that equation for your area but you also need to factor in that equation the insulation factors of exterior walls and the attic, window design, physical size of the building and how much of it you want to keep 65-68 winter comfort degrees

Now, if you have a geothermal source of input air or water(best), R-30+ attic and R-19+ side wall, and double or triple pane windows with argon then a heat pump in the North might be a good choice. And live South of the Mason-Dixon line.



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Dave W (Irelands Child/IC2)

Quando omni flunkus, moritati (When all else fails, play dead - R Green)



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I hope it's obvious that I DO AGREE with everything you have said, even tho I have done the opposite down here in the Humidity Belt where you can sleep thru winter time. biggrinbiggrin



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