Stainless Steel Non Pressure Solar Water Heater

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Detailed Description Specification:

Inner tank: Food grade stainless steel SUS**4/2B, 0.*1mm thickness.
Outer tank: stainless steel SUS**4/BA, 0.*1mm thickness
Frame:stainless steel, 1.5mm thickness.
Insulation: Polyurethane frothing, *0mm thickness.
Vacuum tube: Tri-elements(AI-N/SS/CU) coating, Ø*7mm× ***0mm/Ø*8mm×***0mm.
Accessories: Water auto-feeding tank, electrical heater.
Capacity: **0/**0/**0/**0/**0/**0/**0/**0L.
Logo: OEM sticker/ colour printing
Heat preservation: *2 hours
Hail resistance: *5mm
 
Working pinciple:

Solar vacuum tube was evacuated into the tank, the coating inside of tube can absorb more than *2% heat energy from sunshine. The cold water in water tank flows into the tube and become hot, because of diffierent density between cold and hot water, there will be a natual circulation in the tube, hot water will float back to tank. *0mm thickness heat  insulation layer by polyurethane between inner and outer tank can keep the temperature of hot water for about 2 days without any sunshine, consumer can enjoy comfortable bathe anytime.