How Does Your Solar Heater Work?

Customers often ask us: "But how does the hot water go up without electricity?" It is a reasonable question. The answer lies in physics and the intelligent design we have been applying for decades.

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Let's see exactly how these systems work:

Nature's "Magic": The Thermosiphon Flow

The operation of a solar heater relies on a physical principle called "Thermosiphon Flow." No complex pumps or mechanisms are needed. Quite simply, hot water is lighter than cold water.

The Water Cycle

The process resembles a continuous cycle:

1.  Cold water flows down from the storage tank into the collectors (the panels).

2.  There, solar energy is "trapped," heating the water inside the copper pipes.

3.  As the water heats up, it becomes lighter and naturally rises, returning to the tank, ready for use.

This continues automatically as long as the sun is shining, ensuring you have hot water without any intervention on your part.

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Photo by Appropedia (The sustainability wiki)

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The Importance of Correct Positioning

For this cycle to work correctly, detail makes the difference. At GASOS, we ensure the collector always faces South, at a specific 45-degree angle. This is the "sweet spot" for absorbing the maximum possible radiation throughout the day.

What If It’s Cloudy?

We live in Cyprus, but even here, the sun sometimes hides. That is why a proper system is always prepared. The solar water heater includes a supplementary heat source—usually an electric element. So, even on days with heavy cloud cover, you will never be left without hot water.

At GASOS, we understand the science behind your comfort, so you can simply enjoy the result: hot water, economically and reliably.