Hot summer, hot water, solar water heater?

It’s getting hotter outside. As I have always thought, there must be easy way to utilize the sun light to heat water. I have found lots of lots ideas and commercial products through internet, so called solar water heater. However, those commercial products are mostly expensive. I understand that as the market is small and because of that, the material cost and labor cannot be any cheaper.

Anyway, I don’t want a commercial one since there is no fun.

I’m thinking to put some dark colored water hose on top of the roof with an insulated water tank. But the problem is it will look ugly. If I need just a little hotter than warm (38-40 deg.C) water for a couple of shower, I won’t need a big tank. Hmm…

Any good idea??


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