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About product and suppliers:
        Alibaba.com offers 2,023 closed hot water system products. About 73% of these are solar water heaters, 4% are pumps, and 2% are industrial chiller. 

A wide variety of closed hot water system options are available to you, such as ce, cb, and rohs. You can also choose from water source heat pump, evacuated tube, and flat-plate. As well as from freestanding, wall mounted. And whether closed hot water system is stainless steel, or plastic. 

There are 2,057 closed hot water system suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Australia, and Taiwan, which supply 97%, 2%, and 1% of closed hot water system respectively. 

Closed hot water system products are most popular in South America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,650 with ISO9001, 744 with Other, and 244 with ISO14001 certification.
        
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