This system consists five parts: solar collector, work station, expansion vessel, pressurized tank and controller. This system provides many advantages. It is the simplest and typically the least expensive active system to install. There is no heat exchanger, which allows efficient heat transfer directly to the water. The system operates at a standard line pressure. It is simple to add capacity to the system if demand changes. The system integrates easily with exsiting system. Solar heating system 1) once heat-exchange system 2)twice heat-exchange system ( single copper coil ) 3) twice heat-exchange system ( double copper coil ) Products are put into cartons firstly. The samples are loaded into the plywood boxes. For the fcl goods, cartons can be loaded into the container directly.