Get rid of the air from your system and save money!

Air in your heating or cooling system is really a culprit. It prevents water from flowing properly through your pipes. This means that your heating gets less hot, your pump has to work harder, and your system uses more energy than necessary. And honestly? Nobody is waiting for malfunctions, noise or sky-high energy bills.

By removing air, your system works as it should: quietly, economically and efficiently. Moreover, you prevent wear and tear and expensive repairs. So it's not only better for your comfort, but also for your wallet and your system!

A system without air breathes peace, works more economically and lasts longer

Air in your heating or cooling system: the hidden culprit

Did you know that air in your heating or cooling system is often the cause of malfunctions and high maintenance costs? It can lead to bubbling radiators, noise in pipes and pumps, and even problems with properly adjusting your system. But it goes further: air causes corrosion, which creates dirt and magnetite. This not only reduces heat or cooling, but also causes wear and tear on important components or, in the worst case, a complete blockage.

And of course you don't want that. A shut down installation means dissatisfied customers, residents and considerable costs. Without air separators, this is inevitable in the long run.

Do you want to prevent problems and ensure a more efficient system? We have the solution: discover how our air separators protect your system and make it perform optimally!

The three forms of air in system water

Did you know that system water always contains air? This air comes in three different forms, each with its own challenges to the functioning of your system:

Free Air

These are air bubbles that accumulate in specific places in your system, also known as air pockets. This air causes a poorer flow and hinders the transport of heat or coolness.

Microbubbles

Small, almost invisible air bubbles floating in the water. Although they are small, microbubbles can cause major problems over time, such as accumulation and reduced efficiency of your installation.

Dissolved gasses

Water also contains non-visible gases, such as nitrogen, oxygen and carbon dioxide, which are dissolved in the water. These gases can be released by temperature fluctuations or pressure changes, which exacerbates the air problems in your system.

How do you recognise air in your heating system?

Air in your central heating system is often easy to recognise. A common signal is a bubbling or ticking sound in the pipes or radiators. You also notice it when radiators at the top stay cold while the bottom does get warm. In some cases, the boiler starts more often than necessary, or you have to bleed radiators over and over again to make the system work properly.

All these signals indicate that there is air in the system, which hinders the flow and reduces the efficiency. The sooner you recognise this, the better you can prevent bigger problems.

Removing all these forms of air is essential to keep your system running efficiently, quietly, and sustainably.

Check out what air in your heating system means!

The perfect solution for any installation

Can't predict exactly where air will be released in your system? Then it is difficult to determine where to place an air separator. In such cases, a vacuum degasser is the ideal choice. This solution works throughout the system and prevents air problems, even in places where gas build-up is difficult to predict.

When is a vacuum degasser the best choice?

Here are some situations where gas buildup is tricky to predict:

Large differences in altitude in your system, above the hottest point
Underfloor heating with pipes that are not completely flat
Low-temperature heating with a low flow temperature
Heat pumps with low heat transfer temperatures in the heat exchanger

With a vacuum degasser, you are always assured of an air-free system, regardless of the complexity of the installation. It is the smart solution to a problem that you would otherwise not be able to fully control.

What is vacuum degassing?

A vacuum degasser subjects system water to very low pressure, far below atmospheric pressure, and this releases the dissolved gasses.

Water, by its very nature, absorbs gases easily until saturated. The level of saturation depends on the pressure and temperature. At low pressures, less gas can be absorbed. Vacuum degassing treats water from the system in small set volumes. The water is subjected to vacuum pressure, releasing all the dissolved gases. It is a bit like opening a fizzy drinks bottle. As soon as you start to unscrew the cap, you hear and see the gas appear.

The small volumes of degassed water are returned to the system. The system water is now “hungry” for gas and quickly dissolves any gas pockets it encounters in the system. The saturated water is fed back to the degasser and once again subjected to a vacuum to remove the dissolved gases.

Vacuum degassing uses Henry's law, the affect of pressure and temperature on the absorbent capacity of water in degassing situations, to keep the entire system free of air/gas.

Learn more about Henry's law

Where do you place an air vent or vacuum degasser in your installation?

The correct placement of an air vent or vacuum degasser is crucial to effectively remove air from your installation. Here are the most important guidelines:

Air vent (SpiroTop)

A SpiroTop air vent should be placed at the highest point of your heating or cooling installation. This prevents air from accumulating in so-called air pockets, so that the flow remains optimal.