Tuesday, September 18, 2018

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

December 24, 2011 by  
Filed under Guest Articles on Low Cost Heating

greenpowerscience.com This is a large Fresnel Lens focused on a copper 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 [...]

« Previous Page