The domestic hot water heater is a kind of non-pressurized solar water heater. It combines solar collector and storage tank into one product and is specially suitable to supply hot water for private households (Sanitary Domestic Hot Water). Due to its environment-friendly technology, reliability and low price, the hot water heater is widely used throughout the world, especially in China, India, Malaysia, New Zealand, Singapore, South Korea, Japan and so on. This solar water heater have a long service life, provide hot water all year round, are easy to use and to maintain, have an aesthetic design, operate economically and create high customer value. ĦĦĦĦThis simple and economic system is an Open-loop system. It relies on warm water rising, a phenomenon effect, to circulate water through the tubes and to the tank. Mains Water flows into to the tank and then to the lower part of the vacuum tubes where it is heated. The water ascends in the tubes as it is heated and flows on to the tank, and from there on to the user.
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