thinking in the long-run this would be solar panel heating. Also this would be Eco friendly. However is there a way I can get it to heat in the winter too? Or is there a cheaper option?
If you live in or close to the country side then think about straw burning boiler My friend has had one for twenty years and his pool is always at 70° F summer and winter, very little ash from a bale of straw, and all it cost more cheap.
