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About product and suppliers:
        Alibaba.com offers 15,842 solar water thermal products. About 30% of these are solar collectors, 12% are solar water heaters, and 1% are hvac systems & parts. 

A wide variety of solar water thermal options are available to you, such as ce, cb, and rohs. You can also choose from evacuated tube, flat-plate. As well as from direct / open loop (active), indirect / closed loop (active). And whether solar water thermal is unpressurized, or pressurized. 

There are 15,842 solar water thermal suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of solar water thermal respectively. 

Solar water thermal products are most popular in Southern Europe, South Asia, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 6,253 with ISO9001, 2,183 with Other, and 1,248 with ISO14001 certification.