The information on the system, product or material presented herein is provided for informational purposes only. There are no warranties, either expressed or implied, regarding the accuracy or completeness of this information. Full reproduction, without modification, is permissible. Details Solar water heaters come in a variety of configurations. Each differs in design, cost, performance, and level of complexity.
Most systems have back-up water heating such as electricity or gas.
A passive water heater consists of a water tank located above a solar collector. As water in the collector warms, water flows by natural convection through the collector to the storage tank. A forced circulation system requires a pump to move water from the storage tank to the collector. Most solar water heaters in the United States are the forced circulation type. There are several types of solar collectors.