How does solar hot water work?

House Sun rays Sun rays External pipe up External pipe down Boiler Internal pipes Hot water Hot water Clouds Weak sun rays Weak sun rays Electric booster * * * * * Number 1 Number 2 Number 3 Number 4 Number 5 Click to begin animation.

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  • 1 The Solar Hot Water system detects the roof mounted panels are being heated by the sun.
  • 2 The system sends cold water up to and through the panels and returns heated water back to the storage tank ready for use.
  • 3 The system continues to harness solar energy until all the water in the tank has reached optimal temperature.
  • 4 Solar heated hot water is available to be used by the house at any time.
  • 5 In periods of poor solar gain or heavy water usage, if the water does not reach the optimal temperature, it is 'boosted' by an electric element or gas heater when required.