Question:
There is this system with a meandering system of black rubber hoses which are mounted to the roof of the house, and a little solar-powered motor pumps the water into the house's warm water boiler to reduce the amount of energy necessary to heat up the water in the house - who makes that? I want one.
Thanks.
Passive solar hot water heater. You can make it yourself.
ITS COIL OF PVC PIPE ,YOU CAN BUY IT AT ANY HARDWARE STORE ALSO GOOD FOR HEATING SWIMING POOLS
solar powered pre-heater
Normobrian is correct. The others are guessing.
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