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  1. #26
    Join Date
    Oct 2009
    Location
    seatown
    Posts
    3,757
    thanks for the link DJ. i replaced my gas heater in a hurry when i moved in last year and have a solar cover but plan to get to solar set up by the time the heater’s life is up.

    we’ve had a cold spring and cranked it on last week for the first time this year, i was feeling guilty with temps at 82. last year we hit 96 pool temp when outside temps hit 105 for a over a week. gross.

  2. #27
    Join Date
    Dec 2012
    Posts
    15,307
    Do you live anywhere near volcanic activity? The ancient Romans used to heat their baths in Baiae with the nearby hot springs.
    "timberridge is terminally vapid" -- a fortune cookie in Yueyang

  3. #28
    Join Date
    Nov 2011
    Posts
    1,991
    The idea checks out. Question is, is there enough energy wasted to justify the cost of the heat exchanger? Look at your AC wattage and energy used by the pool heater. Do the AC wasted W/h recovered at max 80%(guesstimate) by the heat exchanger do much for heating your pool?

  4. #29
    Join Date
    Sep 2015
    Posts
    997
    Covers get you a lot for not much energy use, or hassle.
    I'm not a pool owner - but my parents have one.
    Now it's in central Washington, which is very sunny and quite hot during the summer - so I'm not sure how much this will apply to your situation.

    The cover we always used was like bubble-wrap. Blue in color (not as clear as you'd think.) And , obviously, much heavier duty than bubble-wrap.
    But it was also important to run the pump if you really wanted to increase temps. Otherwise the top 12" would get very warm, but the rest would still be cold. Yes, that heat would move lower in the pool, but the capture of the heat was just way more efficient if you kept the pump running and the temp would peak higher.

    We also, tried a hose-in-the-sun heating method. It worked quite well, but was prone to breakage and other fussiness. So we only used it a year or three. (This was back in the stone-age, so I'm sure the materials and experience has improved the situation a lot.)

    IMO, the simple cover+pump gets you a lot for not much effort or maintenance.

    The cover does break down though. I think we got like 5y on ours before it was falling apart.

    YMMV

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