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  • Solar panel

    i need to make a solar panel to heat my pools water
    has any one made one
    i cot some ideas on line but i would like to see if some one made one from there own way
    Charlie

    My seek the peek fundraiser page
    http://observatory.mountwashington.o...nal&fr_id=1040


    http://www.mountwashington.org/weather/conditions.php

    new work pictures 12/09
    http://public.fotki.com/hvachawk/

  • #2
    Re: Solar panel

    It will probably be cheaper to buy one though my dad used to throw a 500' coil of black PE 1 1/4" on the ground and pipe the filter through.
    sigpic

    Comment


    • #3
      Re: Solar panel

      I made one several years ago from one inch pvc, got roughly fourteen or so connected with 90 degree elbows on a sheet of plywood and sprayed them black. I used a small circulator pump, but honestly I agree with NHMaster in buying one. The ones you buy have much smaller tubes and more of them, you have to remember how difficult it is to raise the temperature of those thousands of gallons of water and passing them through any solar device is tricky. I think if I were to make one today I would use smaller tubing, plenty of it and have the circulator on a timer so that the water would sit in the contraption for five or ten minutes, long enough to get hot (lose it's cool) and then go back into the pool. I also thought about laying the tubing on my roof, sure gets hot up there. If you decide to make one, make sure to drain it before the winter comes. Good luck.

      Comment


      • #4
        Re: Solar panel

        A space which gets hot even on not so sunny says is an attic. If you have a garage you might take advantage of the heat up there and place that spool of pipe up there and let it soak up the heat.

        I have a indoor/outdoor thermometer in my garage shop. Just for kicks I placed the outdoor sensor up in the attic space when I insulated the shop ceiling a couple years ago.

        For an example today the outdoor temps was 52°F, but up in there it was 74°F. I have watched it over the years and most days the temp is 20 degrees or more above the temp in the shop or outdoors. In the dead of winter it rarely goes below freezing and to get temps below freezing for days at a time here in the winter is not unusual. In the summer I honestly don't know how hot it gets up there. The display tops out at 127°F and starts blinking until the temp drops below 127 again. It rarely goes over 95 °F here, but on occasion it can reach 100 once or twice a year.

        So my point is use that space as your collector and run your transfer piping through it at a low flow rate to give it time to pick up the heat. Use a solar powered pump and you will save on electric too.
        ---------------
        Light is faster than sound. That's why some people seem really bright until you hear them speak.
        ---------------
        “If I had my life to live over again, I'd be a plumber.” - Albert Einstein
        ---------
        "Its a table saw.... Do you know where your fingers are?"
        ---------
        sigpic http://www.helmetstohardhats.com/

        Comment


        • #5
          Re: Solar panel

          the one i made as an experiment was a 500' roll of 1/2 black poly pipe on my composition garage roof. it got real hot, but still had only 1/2'' flow for a 25,000 gallon pool.

          the ones that are very efficient are the ones that are a 2'' manifold with a matting of 1/4'' flexible rubber tubng that are molded into a sheet and lay on the roof. the filtered water is bypassed up to the roof and then returned into pool via the filter pump.

          since there are literally hundreds of 1/4'' capillary tubes the line has time to heat.

          rick.
          phoebe it is

          Comment


          • #6
            Re: Solar panel

            Originally posted by PLUMBER RICK View Post
            the one i made as an experiment was a 500' roll of 1/2 black poly pipe on my composition garage roof. it got real hot, but still had only 1/2'' flow for a 25,000 gallon pool.

            the ones that are very efficient are the ones that are a 2'' manifold with a matting of 1/4'' flexible rubber tubng that are molded into a sheet and lay on the roof. the filtered water is bypassed up to the roof and then returned into pool via the filter pump.

            since there are literally hundreds of 1/4'' capillary tubes the line has time to heat.

            rick.
            And more surface area to collect that heat.
            ---------------
            Light is faster than sound. That's why some people seem really bright until you hear them speak.
            ---------------
            “If I had my life to live over again, I'd be a plumber.” - Albert Einstein
            ---------
            "Its a table saw.... Do you know where your fingers are?"
            ---------
            sigpic http://www.helmetstohardhats.com/

            Comment


            • #7
              Re: Solar panel

              i do have 100fr of black garden hose on the shed roof and it does work a little .
              i did try some fin tube about 15ft in the garage attic and it did work a little but there was a lot of condensation .

              i will try some different things
              Charlie

              My seek the peek fundraiser page
              http://observatory.mountwashington.o...nal&fr_id=1040


              http://www.mountwashington.org/weather/conditions.php

              new work pictures 12/09
              http://public.fotki.com/hvachawk/

              Comment


              • #8
                Re: Solar panel

                but there was a lot of condensation .
                Sounds like the cooler water caused the moisture in the air to condense
                on the fin tube. Did this happen when the humidity was higher than normal?
                Not that it matters, if it can occur for any reason its not good. You don't
                want condensation in an attic space for sure so sounds like that is out.
                ---------------
                Light is faster than sound. That's why some people seem really bright until you hear them speak.
                ---------------
                “If I had my life to live over again, I'd be a plumber.” - Albert Einstein
                ---------
                "Its a table saw.... Do you know where your fingers are?"
                ---------
                sigpic http://www.helmetstohardhats.com/

                Comment


                • #9
                  Re: Solar panel

                  yes that was out in 15 min after it started . it was so hot and dry up there i think it was just a large spread on the water temp and air temp .
                  Charlie

                  My seek the peek fundraiser page
                  http://observatory.mountwashington.o...nal&fr_id=1040


                  http://www.mountwashington.org/weather/conditions.php

                  new work pictures 12/09
                  http://public.fotki.com/hvachawk/

                  Comment

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