Balcony Hanging solar water heater's special design and decent appearance are much popular in modern market. Balcony Hanging Solar SystemBalcony Hanging Solar Water Heater Specifications1) Consist of solar collector, water tank/boiler, circulation pump, expansion vessel, controller,flowing meter,pressure gauge2) Capacity: 120L,150L,200L,250L,300L3) Working temperature: 99 Celsius degree4) Vacuum ...