Sustainable development

Solar water heater


How does a solar water heater work ?

Solar water heater—also called solar domestic hot water system—can be a cheap system to generate hot water for your home. They can be used in any climate, and the fuel they use—sunshine—is free.

Solar water heating systems include storage tanks and solar collectors. There are two types of solar water heating systems: active, which have circulating pumps and controls, and passive, which don't. Solar panels can’t be used to generate electricity, but heat up water. They are often located on the roofs of buildings.