Cold outside, cozy inside

Cold outside, cosy inside – efficient central heating pumps for a comfortable home

The heart of your heating system

Being too cold or too warm can affect how we enjoy our homes, and having a reliable heating system that is affordable to run is essential to improving our comfort level. Did you know that heating systems rely on a circulation pump to make them work? In older properties, the central heating pump may have been installed many years ago and could be costing more than your old washing machine to run, which could severely impact your energy bill. It could also break down and be the reason why your heating stops working when you need it most.

A modern central heating pump is not only energy efficient and can help to reduce your energy bills, it will also improve the comfort of your home environment by helping to move heat around the system more effectively. Your local installer will be able to guide you on whether your pump is working efficiently or needs upgrading.

Central heating pumps for radiators and underfloor heating

Benefit from our 5 year warranty

Our central heating pump range is suitable for any home, no matter what size, reliably distributing hot water around your radiators and underfloor heating to bring a comfortable temperature to all rooms.

Every heating circulation pump in our range offers the highest level of energy efficiency and comes with a 5 year warranty for your peace of mind. Choose from a range of functions, from fully automatic setup options to simple - yet effective - controls.

We recommend you contact your local qualified plumbing and heating installer to discuss the most suitable pump for your home.

Open data

Wilo-Stratos PICO

Heating circulation pump

Experience pumping excellence with our premium range

Features

  • Highest efficiency premium pump
  • Easy configuration and large coloured display
  • Night set-back function for maximum efficiency and energy saving
  • Operation with mobile devices and BMS systems (optional)
  • Insulation shell included for maximum efficiency
  • Suitable for radiators and underfloor heating

Highlights

  • Best in class
  • Easy to install
  • Automatic set-up function (dynamic adapt plus)

Wilo-Yonos PICO

Heating circulation pump

For the perfect balance of performance and affordability

Features

  • High energy efficiency
  • Intuitive user interface with easy to follow symbols
  • LED display showing performance data
  • Suitable for radiators and underfloor heating

Highlights

  • Best seller
  • Pre-selectable controls for radiators and underfloor heating

Wilo-Varios PICO-STG

Heating circulation pump

Ideal for geothermal & solar applications

Features

  • Efficient pump for solar & geothermal applications
  • Flexible settings and control modes
  • iPWM connection for renewable energy applications

Which heating pump is best suited to your home?

Discover installation recommendations and compare technical details

Find the right pump for your home using the simple selection chart below. Consider the size of your home, your boiler output, the number of radiators and the size of the heated floor area.

It's important to size the pump correctly to meet your needs best.

We recommend you contact a qualified plumbing and heating installer to advise on the right pump selection for your home, and to ensure it is installed safely.

Small houses
Medium houses
Large houses
Parameters
Boiler output P
< 10 kW
10 to 16 kW
< 24 kW
Number of radiators
< 15 pcs
15 to 20 pcs
< 30 pcs
Heated floor area
< 120 m²
120 to 220 m²
< 300m²

How does a central heating pump work?

The central heating system is designed to heat multiple rooms simultaneously using a heat source located either within one of the heated rooms or in an external location. Regardless of the heat emitters used, such as radiators or underfloor heating, the liquid central heating system relies on the circulation of the heating medium along the boiler-radiator route. This circulation is usually forced and carried out by a central heating pump. But what exactly is it? And how does it work?

Heart of the heating system: The pump

The heating pump is a crucial component of the heating system as it ensures that the hot water, heated in the boiler, circulates through the supply pipes to the radiators in each room. Without the pump, the water would not flow properly, and the heating system would be inefficient. The pump creates a pressure difference in the system and moves the water along the pipelines. This ensures that the water reaches all radiators evenly, effectively heating the rooms.

Choosing the right heating pump is of immense importance. It must meet specific parameters to meet the system's requirements. A pump that is too weak cannot generate enough pressure to transport the water to the farthest radiators, while an oversized pump consumes unnecessary amounts of energy.

Different types of heating pumps

Over the decades, the technology, operation, and efficiency of heating pumps have significantly changed.

Uncontrolled pumps offer no option to adjust power or speed. Their performance is typically too high, and they are often oversized for the heating system they are installed in. This means that these pumps always run at full capacity, often even outside the heating season. As a result, they are among the least efficient of their kind.

Electronically controlled heating pumps operate according to the thermostat settings of the radiators. They adjust their power consumption electronically and independently based on the thermostat settings and outside temperature. They are the precursor to high-efficiency pumps and require only about half the energy compared to uncontrolled pumps.

High-efficiency pumps automatically adjust their speed and power to the current heating demand and are continuously adjustable. They are designed to only run when water needs to be circulated. Among all heating pumps, they have the lowest power consumption. This not only saves energy but also potentially extends the pump's lifespan.

The difference in annual consumption between old single-stage uncontrolled pumps and high-efficiency pumps is significant:

A properly functioning heating pump, ideally a high-efficiency pump, is therefore a crucial factor for the optimal operation of the central heating system. It ensures even distribution of heat throughout the house and helps improve energy consumption and significantly reduce heating costs.

If you have any questions regarding the selection of the right heating pump, your installer will be happy to assist you.

Hocheffizienzpumpe im Vergleich zu ungeregelten Altpumpe

FAQs

Why is my central heating not working?

There could be a number of reasons why your central heating system is not working and your radiator is not heating up, including an interruption in supply of gas, electricity or water. It could be that your boiler is not working, or it could be that your room thermostats are set too low and your boiler doesn't know to heat up your home.

Discover our expert-recommended seven-step guide to troubleshoot and fix heating issues quickly and efficiently. Why is my central heating not working?

When should I call a professional for help with my central heating?

If you have followed the simple steps in the link above and cannot activate your heating system you will need to call a qualified plumbing and heating installer who will be able to identify why your central heating system is not working.

How can I prevent central heating problems in the future?

Make sure that your central heating system is checked annually by a qualified plumbing and heating installer. This includes checking that your boiler and any components on the system, including your central heating pump, are working correctly.

Why is my central heating pump so noisy?

There are several reasons why a heating pump may make noise. It is important to identify the exact cause of the noise in order to effectively address the issue. In most cases, it is recommended to seek advice from a professional and have the pump inspected. 1. Air in the system: If there are air bubbles in the heating system, they can cause noise when passing through the pump. Bleeding the system can help resolve this issue. 2. Clogged pipes: Deposits or blockages in the pipes can hinder the flow of heating fluid and result in noise. Professional pipe cleaning may be necessary to address this. 3. Faulty bearings or components: Worn or damaged bearings or components in the pump can cause unusual noises. 4. Incorrect settings: Incorrect pump settings, such as excessive speed, can lead to vibrations and noise. Check the pump settings and adjust them if necessary.

Can I replace a central heating pump myself?

It is important to note that replacing a central heating pump without the necessary expertise and skills is not recommended. There is a risk of malfunctions or damage to the heating system. Therefore, we strongly recommend contacting a professional plumber to carry out the pump replacement. A certified installer has the necessary knowledge to perform the installation safely and efficiently.

When should I replace my central heating pump?

Replacing an old central heating pump with a new, energy efficient model can help to reduce your energy bills. Older pumps run at fixed speeds and are energy-intensive. It is therefore advisable to replace an outdated heating pump with a modern version that meets the latest standards. Please consult with your professional installer for advice.

Do you have any questions? We're here to help!

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The Wilo Group is one of the world's leading manufacturers of pumps and pump systems for water supply and HVAC technology. Our focus is on sustainable solutions and products.

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