Jining brand since the invention of the use of solar energy, the development has now been used in all areas of society, the general use of photothermal conversion of solar energy and photovoltaic in two ways. Solar has a "clean, huge capacity, generally high, sustainability" and many other advantages, has been favored by all sectors of today's society. Jining solar water heater is based on the principle of photothermal conversion to design and production, since 1891 the first solar water heaters in the United States, to the 1970s, solar glass in the market, also called solar vacuum tube, widely used in every corner of life until a few years ago appeared flat solar. This shows that with the continuous development of technology, the production process of continuous fine; solar water heaters and collectors are always improving capacity utilization. The advent of solar tube solar water heater before allowing entry, after decades of development, people's living standards and increase demand for each household in the civilian solar glass "no frost fragile and explosive, anti-natural disasters low "in the commercial supporting batch, vacuum tube solar" unsightly, difficult to maintain (easy furring, easy to clean), no pressure, easy bombing "and other factors have been criticized by the market; until a few years ago, flat plate solar water heater come out, more beautiful than the vacuum tube, strong resistance to natural disasters, and other characteristics can be easy to maintain pressure in recent years has been supporting the project, engineering, installation favored areas in the home not as good as high-vacuum flat solar cost is constrained not widely used.