Installation of Solar Water Heater with Copper Coil.SFD.

This video shows the installation method, operation steps, and precautions of 1st sunflower's Solar Water Heater with Copper Coil, which is the DIY installation guide. It will help you quickly complete the installation and use of SFD.
SFD is a domestic solar water heater that actively performs natural circulation by virtue of the thermosiphon principle. The water tank itself is not under pressure, but through the built-in copper coil in the water tank,the runing water is immediately exchanged for heat to achieve the purpose of utilizing fresh high-pressure hot water.
Product Link:http://en.sunflower.tw.ldyjz.com/SFD-...
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