Heating pumps by KSB

Heating pumps by KSB: Heating efficiently and saving power

Compared to old heating pumps, KSB’s state-of-the-art high-efficiency pumps work extremely efficiently and significantly lower the energy input.

Compared to old heating pumps, KSB’s state-of-the-art high-efficiency pumps work extremely efficiently and significantly lower the energy input.

Saving costs with high-efficiency pumps by KSB

Without an efficient heating pump, the house and flat remain cold in autumn and winter. It is estimated that more than 30 million pumps keep the heating in German households running. However, outdated heating pumps often circulate too much water. In a single-family house, an outdated heating pump consumes about one-fifth of the total energy. However, many homeowners do not include their heating pump in the basement in their calculations when they think about heating and electricity costs.

Compared to an old heating pump, a modern high-efficiency pump from KSB works extremely effectively and thus significantly reduces energy consumption. Our state-of-the-art circulators are available in the most diverse of variants. Naturally, all our high-efficiency pumps meet the requirements of the ErP Directive regulations applicable since 2015.

Benefits of a heating pump by KSB

  • Ease of use: Installation, commissioning and operation are simple and intuitive.
  • Maximum energy efficiency with high-efficiency drive and optimised hydraulic system, meeting the ErP requirements
  • Large product diversity: A wide range of closely-spaced sizes covers applications from single-family houses through to large objects with process control systems.
  • Versatility: Models with different load profiles for heating, ventilation and air-conditioning applications
  • Highest reliability: High quality and availability of pumps and service, individual service concepts and support with planning and implementing systems
  • Major savings: The installation of modern high-efficiency pumps and optimum setting of the heating circuit can lower your power costs by up to 80 percent.

Our heating pumps top seller

Calio heating circulation pumps

Calio S Pro

Calio S Pro

Maintenance-free high-efficiency screw-ended glandless pump with high-efficiency electric motor and continuously variable differential pressure control.

Eta pumps for heating, air conditioning and ventilation systems



Horizontal volute casing pump, single-stage, with ratings and main dimensions to EN 733, long-coupled, back pull-out design, with replaceable shaft sleeves / shaft protecting sleeves and casing wear rings, with motor-mounted variable speed system. With KSB SuPremE, a magnetless synchronous reluctance motor (exception: motor sizes 0.55 kW / 0.75 kW with 1500 rpm are designed with permanent magnets) of efficiency class IE4/IE5 to IEC TS 60034-30-2:2016, for operation on a KSB PumpDrive 2 or KSB PumpDrive 2 Eco variable speed system without rotor position sensors. Motor mounting points in accordance with EN 50347, envelope dimensions in accordance with DIN V 42673 (07-2011). ATEX-compliant version available.

Heating pumps. Short explained.

This is how circulators work

The heating pump (also called circulator) in a heating system is a centrifugal pump that circulates the heat transfer fluid through the piping in a closed circuit. It transports the hot heat transfer fluid to the heaters and returns it in cooled condition back to the boiler, where it is heated up again.
An old circulator consumes large amounts of power as it rarely adjusts to the actual heat demand and therefore always runs at maximum capacity.

What type of circulator have you got?

Fixed speed circulators do not allow for any settings to be adjusted. They always run at maximum capacity and therefore consume a lot of power.
Multi-level fixed speed circulators allow switching between three speed levels. At level 3 the power consumption markedly exceeds that of the lower levels. As this type of pump can only be either turned of or off, replacing it with a high-efficiency pump is recommended.
Circulators with an electronic control system adjust their operation automatically, depending on whether the radiator thermostats are open or closed. The pumps primarily run in the part load range and reduce power costs.

The high-efficiency pump is fitted with an optimised motor with variable speed system that adjusts the output to the actual demand. It is especially matched to the heating system it is used in and supports hydraulic balancing.

KSB circulators are versatile in use

For heating, air-conditioning and ventilation KSB offers suitable models of different sizes, designs and operating data. Whether in single-family houses or in large building complexes, our high-efficiency pumps provide a pleasant climate at all times.

Applications of KSB circulators:

  • Heating, ventilation and air-conditioning systems
  • One-pipe and two-pipe systems
  • Underfloor heating systems
  • Boiler or primary circuits
  • Storage tank circuits
  • Solar power systems
  • Heat pumps
  • Circulation systems