Tank materials:
Interior: steel coated Enamel
Exterior: galvanized steel
Frame: aluminum alloy with 1.5mm thickness
Insulation: 55mm polyurethane
Tank capacities: 80, 133, 150, 165, 200, 250 and 500L
Outer tank diameter: 420 or 470mm
Tank includes 1.5kW electric heating element
Tube quantity: 12, 14, 16, 18, 20, 24 and 30 pieces
Working pressure: 0.8MPa
Material of glass tube:3.3 High Borosilicate Glass
Outer diameter of outer tube:47mm or 58 mm
Inner diamenter of inner tube:37mm or 47mm
Length of vacuum tube:1500mm or 1800 mm
Thickness of glass tube:1.6 mm or 2.0 mm
Selective coating of vacuum tube:AL-N/AL or SS-CU- AL-N/AL
Hailstone resistance:diameter .25mm
Length of copper pipe:1500mm or 1700mm
Diameter of copper pipe:8mm
thickness of copper pipe:0.6mm or 0.7mm
Solar water heaters—also called solar domestic hot water systems—can be a cost-effective way to generate hot water for your home. They can be used in any climate, and the fuel they use—sunshine—is free.