Our 5000 gallon pool keeps a steady 65 degrees, even with a solar blanket. Pretty cool even on a hot day. I rigged up this unit mostly from stuff I had around. There is 50 feet of 3/4" copper tubing coiled in the stove, inlet and outlet are teed into the pressure hose from the pool pump. I haven't taken temperature readings yet, but it seems to be working.
Summer in Alberta.
