Split solar heater: *Materials: A) Inner tank: SUS304-2B food grade stainless steel B) Outer tank: Galvanized steel sheet C) Bracket: Aluminum-alloy*Thickness: A) Inner tank: 2mm B) Outer tank: 0.4mm Bracket: 1.6mm * Heat collector: vacuum tube + heat pipe: A) Highly absorptive vacuum with aluminum nitride coating B) Straight copper heat pipe with anti-freeze liquid inside which can prevent the tube from breaking in low temperature C) Heat absorption rate: More than 93% D) Diameter: 47mm or 58mm E) Length: 1500 or 1800mm*Insulation layer A)Material: Rock-wool B) Thickness: 50mm (for maximum 72 hours of conservation) *Capacity: 150, 200, 250, 300, 400 and 500 Liters *3 years international quality guarantee for the whole system *Certificate: ISO9001: 2000, CE certificate * Packaging: Vacuum tube / carton, water tank / carton, bracket / cartonsolar water solar energy heater,solar water heater,solar collectorType Heat Pipe Vacuum TubePressurePressurizedCirculation TypeIndirect / Closed Loop (Active)Heating SystemThermosyphon (Passive)Connection TypeSplitInstallationFreestandingHousing MaterialStainless SteelCertificationCEBrand NamekaidunModel NumberKD-SPAcolour steelsus 304 steelSunshore solar heater:When the temperature of the heat collector reaches the set value, the controller shall start the circulation pump automatically.