... 2,easyly installation, energy-saves 3,competitive price compacte non-pressuriced solar system One pipe inlet-outlet on the water tank,and ... two pipes inlet-outlet on the water tank. Details of non-pressure solar water heater: 1. Inner tank: Stainless steel SUS 304-0 ... , 24, 30, 36tubes 7) Capacity: 100-360 liters Solar water heater Remark: 1. Solar heat storage tank diameter(mm): 410/4602. Thickness ...