The details of material:
Evacuated tube: High quality borosilicate glass 3.3, Φ47×1500,  Φ58×1800, Φ70×2100
Inner tank: SUS304-2B stainless steel plate
Outer tank: Colour steel plate
Insulating layer: Polyurethane foam
Bracket: Galvanized steel plate
Capacity of tank: 75L 100L 125L 150L 200L 225L 250L 300L

Feature:
◆ Highly efficient absorber of high performance with daily average efficiency over 50%.
◆ Start up quickly, heat pipe transfer the heat energy into the storage tank in one direction.
◆ Withstand pressure of 6 bar, can be connected directly with city water.
◆ No water inside the evacuated tubes, the solar water heater can still in service even with several tubes breakage.
◆ Highly efficient insulation with polyurethane foam.
◆ Simple structure,easy to assembly and install.
◆ Can be used all year round in the cold climate.
◆ Can be used together with auxiliary electric boost.
◆ Long service life, can be used over 15 years.