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| SFT Non pressure Solar Water Heater |
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| SFT non pressure No assist tank fixed |
A non-pressure solar water heater is a type of solar water heating system that operates without the use of a pressure storage tank. Unlike traditional solar water heaters, which rely on pressure to deliver hot water, non-pressure systems use natural convection to circulate water through the system.
In a non-pressure solar water heater, cold water is supplied to a flat plate or evacuated tube collector, which absorbs sunlight and heats the water. As the water heats up, it becomes less dense and rises naturally through the system, allowing cooler water to take its place. This process, known as thermosiphon, creates a continuous circulation of water, with hot water rising to the top and cold water sinking to the bottom.
The heated water is then stored in a non-pressurized storage tank located above the collector. Since there is no pressure in the tank, it doesn't require additional safety measures such as pressure relief valves or expansion tanks.
Non-pressure solar water heaters are often used in areas with low water pressure or in situations where a simple and cost-effective solar water heating solution is desired. They are relatively easy to install and maintain, and their efficiency can be improved by insulating the storage tank and pipes to minimize heat loss.
It's important to note that non-pressure solar water heaters are not suitable for high-demand applications or areas with extremely cold climates, as they may not provide sufficient hot water or freeze protection. In such cases, pressurized solar water heating systems or other alternative options may be more appropriate.
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| Non Pressure Solar Heater different install way |
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| Non pressure Solar Heater work picture |
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| TK-7 controller install manual A |
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| TK-7 controller install manual B |
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