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How it Works ?

All Solahart solar water heating systems, where the tank is roof-mounted, use the Thermosiphon principle to collect heat from the sun and transfer it to your hot water. The Thermosiphon principle is based on two naturally occurring phenomena:

  • Dark objects absorb heat
  • Hot water rises

All Solahart collector panels are coated with a dark, heat-absorbent surface. This coating absorbs the suns rays and heats the fluid in the collector panel called hartgard. As hartgard heats, it rises to the top of the collector panel and into the tank where it displaces cooler fluid which flows in to the bottom of the collector panel where the process is repeated.

ThermosiphonThe greater the temperature difference between the fluid in the collector panels and the water in the tank the faster the flow between them.

Hartgard  is circulated in a jacket around the tank to transfer the heat to the water inside. Closed circuit systems are recommended for situations with poor water quality.

In this way Solahart Solar hot water systems constantly soak up the sun's energy to maximise your energy savings.

With a Solahart Thermosiphon solar water heating system you can choose from a range of boosters including in-tank electric or gas boosters to ensure you always have hot water on tap even on cloudy days

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