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FRESNEL LENS SOLAR HOT WATER, Heat Solar Pool Heater Solar Swimming Pool greenpowerscience

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A large Fresnel Lens (moderate Fresnel groove) solar focused on a copper lens tube with a 12 V pump (powered by two 6 watt solar panels) with water circulating through the unit. Water, seven gallons, was raised from 63 F to 106 F in one hour. It is not super efficient as heat is lost at the open top of the glass tank. This is designed to illustrate one method of solar heating a swilling pool with a Large Fresnel Lens.

TESTING HDD AQUA BLOCK.
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