A solar water heater is a solar-powered device that relies on the energy from the sun to heat water. Normally, it consists of a system installed on the rooftop that collects sunlight which is used to heat water.
This system isn’t connected to a power supply and doesn’t have an on-off switch. The sunlight collected throughout the day is used for heating the water in tubes or flat panels and the heated water is then stored in an insulated tank - a solar geyser.
Investing in a solar geyser will save you money in the long run. Free energy to heat your water may see savings of up to 90% on your electricity bill in summer months. This is because most households use by far the most electricity for heating water.