Introduction: DIY Solar Panels - Air Heaters Made of Pop Cans
It is really easy and simple to build cheap pop can DIY solar panels for supplemental home heating, by re-using scrap parts and empty pop cans. Pop can diy solar panels are actually thermal panels that heat and recirculate the air inside the room. Water, or any kind of liquid is not used here, which makes these panels resilient to extremely low temperatures and winter freezing accidents.
Solar absorbent / collector is crafted using empty beer and soda aluminum cans, painted in matte-black paint resistant to high temperature. The upper part (cover) of cans is specifically designed to provide more efficiency in heat exchange between the cans and the passing air.
Housing for solar collector is made of wood (plywood 15mm), while its front is 3 mm (0.12 inches) Plexiglas/polycarbonate (you can use tempered glass as well). The back of the case set is made of 20mm rock wool (or styrodur) insulation.
Checkout additional details on : https://www.freeonplate.com/how-to-build-diy-solar-panels-out-of-pop-cans/
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