10 Nov '12, 4pm

Nearly everything you ever wanted to know about solar water heaters

Why waste the sun’s immense potential on just a tan when you can use it to heat your water? Installing solar water heaters in your home can be a cost effective way to generate hot water because, well, sunshine is free! How Do Solar Water Heaters Work? Solar water heating systems are made up of a combination of storage tanks and solar collectors, and you can choose from two types : active and passive. The difference between them is that active systems have circulating pumps and controls, while passive ones don’t. Passive solar heating systems are normally less expensive than active ones and can also be more reliable and longer lasting. On the other hand, they’re not quite as effective as their active counterparts. Both systems usually require a well-insulated storage tank, with an additional outlet and inlet connected to and from the collector. In a two-tank version, the so...

Full article: http://www.resnet.us/library/using-solar-water-heaters/

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Now heating studio from green house = passive #solar during day~70 degrees~this works. : ) Kinda like this>

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