Stainless steel unpressurized solar hot water heaters

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unpressurized solar hot water heaters specifications:

1,SUS304-2B Inner tank
2,Polyurethane foam insulation
3,Stainless or aluminum support
4,Trivalent element evacuated tube
5,Electromagnetism or ball valve(optional)
6,Electrical boost heater (optional)

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unpressurized solar hot water heaters Working principle:

1,The high quality vacuum tubed absorb the solar autraviolet ray,then heat the cold water in the vacuum tube
2,The hot water rise in the top of the water tank ,and the cold water sink to bottom then heat by solar collector.So the whole system is always circilating continuously
3,The electromagnetism or ball valve can perform the water supply automatically,the water in the tank is not sufficient,the electromagnetism valve will open its valve,the tap water flow in the water tank,if the water is full,it will close the valve automatically

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unpressurized solar hot water heaters Feature:

The Deno-NP003 type has the stainless shell,so it can be used in the acid rain area,Besides,it has 15years long life span,and the vacuum tubes can work individually,so if the only one of them can't work ,it won't influence on the others.The spare parts can be changed freely,it is suitable for the many resident buildings.