Detailed Product Description Working principles: 1) When the temperature of the heat collector reaches the set value, the controller will start the circulation pump automatically 2) The circulation pump makes heat-conducting liquid circulate automatically 3) Solar radiation is absorbed by the solar tubes and converted into heat. Heat pipes then conduct the heat from within the solar tube up to the header pipe   Features: 1) Collector separates with the storage tank. The tank can be put anywhere of the house 2) The collector can be put on the inclined roof or flat place 3) Module design, arbitrary combination, harmony with the building perfectly 4) Anti-freeze: no water inside the tubes when it works 5) The system controller has the anti-freezing function is that the temperature circulation will operate while it reaches the fixed temperature 6) Intelligent control: the system is equipped with computer automatic procedure and electric heating system to supplement heat 7) Wide application: the whole heat collection project can meet not only the requirements of hot water in all fields but also can be used for many other fields, such as warming, and industrial heating 8) Workable at anytime and enjoyable