Split Druck Solarwarmwassersystem

split solar water heater split pressurized solar water heater features: 1, Diameter of vacuum tube:47mm/58mm/70mm 2,Length of vacuum tube:1500mm/1800mm/2100mm 3,Quantity of vacuum tube:10/15/18/20/24/30/36 4,Capacity optional:100L/150L/200L/250L/300L350L/500L 5, cold resistance:-30degree Advantages: , Double coils system can combine with the original water heater perfectly 2,split pressured system is special designed for the cold area, more effective than the other type solar water heater in the cold winter 3,Double coil system can used for heating 4,Solar collector can be placed on the flat roof or sloping roof of fixed on the balcony pls contact me for more details in any time!