Compact vacuum pipe solar water heater: 1) Non pressurized. 2) Vacuum pipe 24pcs,1.8m. 3) Safe & warm water fast.

New design compact solar water heater thermo-siphon system work principle:

Vacuum tubes collector absorbs the heat energy to heat the water circulating within tubes & tank,when using the hot water,the high pressure press the cold water into the copper coil.When the cold water through the copper coil,the temperature rise up ceaseless,so the water temperature of the outlet is close to the water temperature of the water tank.

 Model No. SL-1B

24pcs vacuum tubes,length:1.8m,diameter:58mm.Capacity:200L.