Solar hot water tank
BOSTON--Gear for making buildings greener was on display at this year's BuildingEnergy conference of the Northeast Sustainable Energy Association, which seemed to have a greater emphasis on energy efficiency this year.
Pictured here is the inside of a solar hot-water storage tank from Stiebel Eltron. With solar hot-water systems, solar panels or tubes heat a liquid that is pumped into a storage tank to heat water.
March 12, 2010 7:31 AM PST
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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