Solar water heater 1,Work longer hours 2,Economical and high-efficiency 3,Modular design and auto-operation 4,Multifunction Solar water heater features:1.Modular design, arbitrary combination,harmonize with the building perfectly.2.Intelligent control and automatic operation.3.Multifunction: bathing, washing,domestic heating ect.4.Work longer hours,low cost and high-efficiency. Material of model: ...