Forced circulation systems use electrical pumps, valves and controllers to circulate water or other heat-transfer fluids through the collectors. This enables a high degree of flexibility in the positioning of the system components. For example, the tank can be installed in a basement. In addition, the system can operate with a series of collectors to supply heated water to several large tanks, making it suitable for hotels, swimming pools and other commercial applications.

Description:
This system provides hot water in large quantities for residences and institutions. It uses several solar collectors. The number and size of collectors differs with the heated water needs. A few collectors can serve a block of flats or a motel, while a few tens or hundreds together can cover the hot water needs in hotels, hospitals and factories. Such a configuration can be completed with conventional energy sources (electricity, gas, diesel oil), by means of a control system.