Asia Solar water heating

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new solar hot water installations during 2007, worldwide.


after 1960 systems marketed in japan.


australia has variety of national , state , regulations solar thermal starting mret in 1997.


solar water heating systems popular in china, basic models start @ around 1,500 yuan (us$235), around 80% less in western countries given collector size. @ least 30 million chinese households have one. popularity due efficient evacuated tubes allow heaters function under gray skies , @ temperatures below freezing.








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