Components

Your geyser

No additional storage tank is necessary - we use your existing geyser.

Solar collecting tubes

18 or 24 aesthetically pleasing tubes nearly 2 metres long catch the energy from the sun and heat the water. These collecting tubes have a life expectancy of more than 30 years.

A pump

Called a Wilo pump, this 3 speed hot water circulation pump moves the heated water around the system.

A monitor

With this device, you can set the temperature at which the element of your geyser will be switched on should the water temperature drop below a certain level.

Lets say it is a particularly cloudy day and everyone has had their showers and the temperature of the water is below 45 degrees. Your existing geyser will then kick in and heat up the water.

As long as the temperature is above 45 degrees, your electricity will be turned off. In the South African climate, this will be very seldom depending on where you live in the country but in the highveld, it will be fairly rare.

This is a great electricity saver as your geyser will only be activated when absolutely necessary

How the system works

The solar collectors hold a relatively small volume of water. The collectors convert solar energy into heat and the water in the collector is heated up.

When the controller detects that the water in the collector is 8 degrees warmer than the water in the geyser, the water circulation pump is activated and the warm water is circulated into the geyser and replaced with the cooler water from the geyser. This water is now heated until it is 8 degrees warmer than the geyser and this cycle is continued all day long until the desired temperature is reached or the sun goes down.

The controller also has control over the geyser element and if the temperature in the geyser drops below a certain temparature, the element heats up to heat the water. The element is only activated when it is absolutely necessary to heat the water.