Results 1 to 10 of 10
  1. #1
    Join Date
    Jan 2006
    Location
    McQueeney, Texas
    Posts
    3,790

    Backwords a/c for heat.

    I'd like to heat my shop a little in the winter. It doesn't get that cold here- but it can for a few days.

    I have an older 2 ton cooling only system I pulled out and was thinking.

    If I installed the air handler outside and the condenser inside- wouldn't that give me heat on 35* days and above?

    I could increase the air handler blower speed if needed to help prevent icing when it gets colder and install a freezstat. ?

    Crazy idea huh?

  2. #2
    Join Date
    May 2010
    Location
    Oxford, UK
    Posts
    336
    Fit a reversing valve and accumulator on it. And defrost board!

  3. #3
    Join Date
    Aug 2012
    Location
    Gainesville, FL
    Posts
    325
    Quote Originally Posted by walterc View Post
    I'd like to heat my shop a little in the winter. It doesn't get that cold here- but it can for a few days.

    I have an older 2 ton cooling only system I pulled out and was thinking.

    If I installed the air handler outside and the condenser inside- wouldn't that give me heat on 35* days and above?

    I could increase the air handler blower speed if needed to help prevent icing when it gets colder and install a freezstat. ?

    Crazy idea huh?
    I'm thinking there won't be much load on your evaporator coil so the pressures would be off. It might work a little bit but it would be inefficient.

    Why not just burn a kerosene cannon?

  4. #4
    Join Date
    Jun 2004
    Location
    Eugene, Oregon
    Posts
    1,018
    Wouldn't work. Coils not designed for the application.
    You could try re-piping the outdoor unit so the compressor discharges into the suction line, remove the meterting device from the indoor coil and install it at the outdoor unit between the liquid line and outdoor coil, and pipe the outdoor coil to the compressor suction. Then come up with some creative way to defrost.
    Or you could buy a heat pump.
    "The bitterness of poor quality remains long after the sweetness of low price is forgotten". --Benjamin Franklin
    "Don't argue with an idiot, they will drag you down to their level and beat you with experience". --Mark Twain
    http://www.campbellmechanical.com

  5. #5
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    6,725
    You can get a dry 22 hp for pretty cheap.

  6. #6
    Join Date
    Dec 2010
    Location
    Down by the river
    Posts
    1,646
    You can get a small gas furnace cheaper

  7. #7
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,031
    Just wait till you change out a heat pump.

  8. #8
    Join Date
    Jan 2006
    Location
    McQueeney, Texas
    Posts
    3,790
    It was just a challenging thought as to why it would or wouldn't work.
    I guess piping it would be the better solution. Defrost would be a problem if it did ice up and a freezstat would probably just keep it off all the time below 32* anyway.

    I can just run the elect heat (No natural gas pipe run to the shop- 90' away from the house.) I hate giving the elect co-op my money though.

    I made a used motor oil drip heater out of a freon jug with a furnace draft blower that heats up real well, gets red hot and rumbles, but I don't like the idea of possible runaway burning oil.

  9. #9
    Join Date
    Jun 2013
    Location
    orange county, ny
    Posts
    135
    i dnt think it would work but you should wait for a change out and do it anyway...sounds like a fun beer drinking project for the weekend

  10. #10
    Join Date
    Jun 2009
    Location
    Ontario, Canada
    Posts
    1,029
    bring couple of the local college chick and a bed....lol.
    Parts Changer Extraordinaire
    ------------------------------------------------------
    Have tools and gauges, will travel.

    RIDGID|YELLOW JACKET|UEI|TESTO|STANLEY|CPS|VETO| KLEIN|MILWAUKEE|MASTERCRAFT|

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event