Grundfos Circulators for Heating and Air Conditioning.

Circulators for heating and air conditioning

Importance of circulators in the home heating system

Heating circulators play a fundamental role in the efficiency and operation of home heating systems. These pumps, often underestimated, are essential for ensuring uniform heat distribution within the home. Their task is to keep the heat transfer fluid (water or water/glycol mixture) moving through the radiators or radiant floor panels, thus allowing the transfer of heat from the heating elements to the domestic environments. Correct selection and maintenance of circulators allows not only to optimize thermal comfort but also to reduce energy consumption. The modern technologies used in the most advanced circulators, such as those with variable speed and automatic regulation, contribute significantly to energy saving, adapting to the various needs of the system and reducing the waste of electricity to a minimum. Choosing the appropriate circulator requires attention to the technical characteristics of the heating system, such as the necessary flow rate and head, while periodic maintenance ensures that these devices maintain optimal performance and energy efficiency over time. It is therefore clear that a good knowledge of heating circulators is essential for those who want to best manage their domestic heating system.

How to choose the right circulator for your system

The choice of the heating circulator is a fundamental step to guarantee the energy efficiency and thermal comfort of your home. To select the most suitable model, it is necessary to consider various factors, including the water flow rate required by the system, the head, i.e. the height to which the water must be pushed, and the overall dimensions of the heating system. A circulator that is too small would not be able to adequately move the water through the radiators or the radiant floor, while one that is too large would waste energy without providing benefits. Furthermore, it is important to evaluate circulators with variable speed technology which automatically adapt to variations in the thermal load, offering further energy savings and greater durability over time. Choosing a quality circulator with the right technical specifications means optimizing the performance of the heating system and reducing bill costs. Don't also neglect the aspect of compatibility with any smart management systems or automatic regulation devices, these aspects can make the difference in terms of comfort and control of energy consumption.

Discover the main categories:

  1. Grundfos Magna1 pumps
  2. Grundfos Magna3 Circulators
  3. Grundfos Alpha1
  4. Grundfos Alpha2
  5. Grundfos UPS 2
  6. Grundfos Alpha3
  7. Grundfos Mixit

Maintenance and resolution of common problems in heating circulators

Regular maintenance of heating circulators is essential to guarantee the efficiency and life of the home heating system. The most common problems that can occur with circulators include rotor blocking, unusual noises during operation, water leaks and a decrease in thermal performance. To prevent these problems, annual maintenance is recommended which includes checking the condition of the seals, internal cleaning of any limescale accumulations and lubrication of the moving elements if they are not magnetic seal models, which have no susceptible parts. to mechanical wear.


In case of malfunctions, it is important to perform an accurate diagnosis. If the circulator does not start, check the power supply and the thermostat; However, if you hear an abnormal noise or vibrations, it may be necessary to replace the rotor or damaged parts. If the pump becomes less effective in circulating hot water, it may be necessary to adjust the speed or check the pipes for blockages. Finally, if water leaks are found from the circulator machine body, it will be essential to check the seals and replace them if damaged.

Relying on a specialized technician may be the best choice to ensure that the operations are carried out correctly. It is also recommended to consult the specific instruction manual of the model in use to follow the manufacturer's instructions relating to the ordinary and extraordinary maintenance of affordable heating circulators and their operational management.

-47%

Grundfos mixing group MIXIT 25-6.3 L cod. 99508816

Available
Grundfos mixing unit MIXIT 25-6.3 NRV left bypass cod. 99508816
Useful to:
Air conditioning - Commercial buildings
Heating in commercial buildings
The Grundfos MIXIT valve unit is designed for heating and cooling systems. MIXIT offers temperature control, application-specific settings, ecological functions, such as balance limiters and pressure independence, as well as access to the Grundfos BuildingConnect Free Monitoring solution.
€1,387.01
€2,617.00
-51%

Grundfos circulator ALPHA SOLAR 25-145 180 cod.98989297

Available
Grundfos circulator ALPHA SOLAR 25-145 180 cod.98989297
Useful to
Heating in commercial buildings
Home heating
Industrial heating
ALPHA SOLAR is a circulator designed for thermal solar systems. It features three constant curve modes and the speed can also be controlled by a low voltage PWM signal from a solar controller.
€485.10
€990.01
-52%

Grundfos circulator ALPHA SOLAR 25-75 130 cod.98989299

Available
rundfos circulator ALPHA SOLAR 25-75 130 cod.98989299
Useful to
Heating in commercial buildings
Home heating
Industrial heating
ALPHA SOLAR is a circulator designed for thermal solar systems. It features three constant curve modes and the speed can also be controlled by a low voltage PWM signal from a solar controller.
€443.52
€924.00
-51%

Grundfos circulator ALPHA SOLAR 25-75 180 cod.98989300

Available
Grundfos circulator ALPHA SOLAR 25-75 180 cod.98989300
Useful to
Heating in commercial buildings
Home heating
Industrial heating
ALPHA SOLAR is a circulator designed for thermal solar systems. It features three constant curve modes and the speed can also be controlled by a low voltage PWM signal from a solar controller.
€452.76
€924.00
-53%

Grundfos circulator ALPHA SOLAR 15-75 130 cod.98989298

Available
Grundfos circulator ALPHA SOLAR 15-75 130 cod.98989298
Useful to
Heating in commercial buildings
Home heating
Industrial heating
ALPHA SOLAR is a circulator designed for thermal solar systems. It features three constant curve modes and the speed can also be controlled by a low voltage PWM signal from a solar controller.
€418.77
€891.00
-58%

Grundfos pump UPS2 32-80 180 Cod. 98707855

Available
Grundfos circulator UPS2 25-80 180 cod. 98707855
Useful to
Heating in commercial buildings
Domestic hot water recirculation
Grundfos UPS2 circulation pumps are equipped with advanced control modes that allow you to adjust the pump performance to the actual system requirements in one- and two-pipe heating systems. The motor is based on permanent magnet technology and a compact rotor which ensures silent operation and low energy consumption.
€492.24
€1,172.01
-58%

Grundfos pump UPS2 25-80 180 cod. 98707853

Available
Grundfos pump UPS2 25-80 180 cod. 98707853
Useful to
Heating in commercial buildings
Domestic hot water recirculation
Grundfos UPS2 circulation pumps are equipped with advanced control modes that allow you to adjust the pump performance according to the actual system requirements in one- and two-pipe heating systems. The motor is based on permanent magnet technology and compact rotor which guarantees quiet operation and low energy consumption.
€430.92
€1,026.00
-47%

Grundfos circulator pump ALPHA3 32-80 180 cod. 99371965

Available
Grundfos variable speed pump ALPHA3 32-80 180 code 99371965
Useful to
Heating in commercial buildings
Home heating
Industrial heating

ALPHA3 is a circulator designed for heating systems and is fully controlled via the Grundfos GO Remote app, allowing radiator and underfloor heating systems to be easily hydronically balanced.
€803.48
€1,516.00
-55%

Grundfos circulator Alpha 2 32-80 180 cod. 99411263

Available
Grundfos variable speed circulator ALPHA2 32-80 180 code 99411263
Useful to
Heating in commercial buildings
Home heating
Industrial heating
The Grundfos ALPHA2 series consists of highly efficient circulation pumps, designed for heating and air conditioning systems. It is equipped with the AUTOADAPT function which automatically adjusts the pump according to the needs of the system for optimal comfort and lower energy consumption, as well as simple commissioning.
€505.80
€1,124.00
-56%

Grundfos circulator Alpha 2 32-60 180 code 99411221

Available
Grundfos variable speed circulator ALPHA2 32-60 180 code 99411221
Useful to
Heating in commercial buildings
Home heating
Industrial heating
The ALPHA2 model is a circulator designed for heating and air conditioning systems. AUTOADAPT continuously adapts the pump to the requirements of the system to offer optimal comfort, low energy consumption and simple commissioning
€395.56
€899.01
-52%

Grundfos circulator Alpha 2 25-80 180 cod. 99411178

Available
Grundfos variable speed circulator ALPHA2 25-80 180 code 99411178
Useful to
Heating in commercial buildings
Home heating
Industrial heating
The ALPHA2 model is a circulator designed for heating and air conditioning systems. AUTOADAPT continuously adapts the pump to the requirements of the system to offer optimal comfort, low energy consumption and simple commissioning.
€488.64
€1,018.00
-57%

Grundfos circulator Alpha 2 25-60 180 cod. 99411175

Available
Grundfos variable speed circulator ALPHA2 25-60 180 code 99411175
Useful to
Heating in commercial buildings
Home heating
Industrial heating
The ALPHA2 model is a circulator designed for heating and air conditioning systems. AUTOADAPT continuously adapts the pump to the requirements of the system to offer optimal comfort, low energy consumption and simple commissioning.
€351.31
€817.00
-57%

Grundfos circulator Alpha 2 25-40 180 cod. 99411165

Available
Grundfos variable speed circulator ALPHA2 25-40 180 code 99411165
Useful to
Heating in commercial buildings
Home heating
Industrial heating
The ALPHA2 model is a circulator designed for heating and air conditioning systems. AUTOADAPT continuously adapts the pump to the requirements of the system to offer optimal comfort, low energy consumption and simple commissioning.
€305.73
€711.00
-52%

Grundfos circulator ALPHA2 25-80 130 cod. 99411163

Available
Grundfos variable speed circulator ALPHA2 25-80 130 code 99411163
Useful to
Heating in commercial buildings
Home heating
Industrial heating
The ALPHA2 model is a circulator designed for heating and air conditioning systems. AUTOADAPT continuously adapts the pump to the requirements of the system to offer optimal comfort, low energy consumption and simple commissioning.
€488.64
€1,018.00
-57%

Grundfos circulator Alpha 2 25-60 130 cod. 99411150

Available
Grundfos variable speed circulator ALPHA2 25-60 130 code 99411150
Useful to
Heating in commercial buildings
Home heating
Industrial heating
The ALPHA2 model is a circulator designed for heating and air conditioning systems. AUTOADAPT continuously adapts the pump to the requirements of the system to offer optimal comfort, low energy consumption and simple commissioning.
€351.31
€817.00