Solar collector boiler (definition)

Boiler for solar collectors — is a specialized storage water heater designed to work with solar hot water supply systems. Such a boiler is usually equipped with one or two built-in heat exchangers through which the coolant passes, heated by solar collectors.

Boiler for solar collectors: operating principle

The water in the boiler is heated by the transfer of heat from the coolant, which circulates in a closed circuit between the solar collectors and the boiler. Boilers for solar collectors can also be equipped with additional heat sources, such as electric heaters or connection to the heating system, to provide hot water during periods of low solar activity.

Bivalent boiler (boiler for solar collector)

This is a storage water heater that is equipped with two heat exchangers (coils) for connection to two different heat sources. Typically, one heat exchanger is connected to a solar collector, and the second to an additional heat source, such as boiler or heat pump.

This design allows for the efficient use of renewable energy sources for heating water, while ensuring stable hot water supply even in conditions of insufficient solar activity. Bivalent boilers are often used in systems that require a high degree of energy saving and flexibility in using various heat sources.

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