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Pump groups connect the heat supply system, usually a boiler, with consumer circuits, such as underfloor heating or radiators. Pump groups are always equipped with a pump and enclosed in a compact, well-insulated casing. They are used for installations divided into several heating circuits, where constant temperature regulation and efficient energy use are required, ensuring the proper functioning of devices requiring different heating medium parameters, such as traditional radiators and low-temperature underfloor water heating. Compared to simple pump groups, double pump groups allow the connection of two different heat sources, such as a gas condensing boiler and a solid fuel boiler, which requires protection against excessively low return water temperature from the heating unit. Various models of pump groups are available, with equipment depending on the level of sophistication, purpose, and operating conditions. Units are offered with a three-way thermostatic mixing valve for constant temperature regulation in the heating circuit. Depending on the model of the pump groups, they may be equipped with various control fittings. Also, don't overlook the range of manifolds and accessories for pump groups.