The Principal Connection Diagram

The Thermosyphon Principle: Hot water is lighter than cold water and flows upwards, while cold water flows down.
Such a "sun generator" circulates water all day long and stops when the sun go down.

Natural Circulation

Chiang Mai Solar is a brand of Oelmaier Technology Company Limited
40 Moo 2, Si Bunrueang Road, Soi 4, T. Nonghoi, A. Muang, Chiang Mai 50000, Thailand,