clipped from: solarwaterheater.vox.com   

These systems are able to heath water for various uses including industrial, business or home users. The most popular uses for solar water heaters are hot water heating for radiant heating in the floor and for heated swimming pools.


A solar water heater can be the most efficient way to heat the water in your home and is easy on the environment. A solar system for heating water has solar thermal collectors that moves the heat from the thermal collector to the item where it is intended using a fluid system. Using a small amount of electricity, the system pumps the fluid and includes a tank or reservoir to store the heat to use later.