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Why solar water heating?6 C, ?. _1 @. L' q( A
Amount of energy used today to heat domestic water is enormous.
4 g+ b% S9 L/ dCompared to burning of fossil fuels, direct energy from the Sun produces heat5 c: Y7 e2 g# e8 r
that is almost free, environmentally clean and socially more acceptable.# o$ {/ v( K3 z- R/ h( o4 }4 T: p
Possible energy savings for hot water in sunnier places are 80 percent or more
: `2 j5 m" j, J, pand in cloudiest climates are from 50-60 percents. |
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发表于 2009-8-1 07:05:49
