Flexible space function

Intro

A new freedom of heat pump placement

Your home. Your choice.

As a homeowner, you usually have to compromise when choosing the location of your heat pump. Because they normally require significant clearance zones when they operate with the refrigerant R290, also known as propane, that limit your installation options. Our flexible space function changes that, allowing you to place it in locations previously considered impossible.

Minimal safety area. Maximal freedom.
Our industry-unique safety concept means that your heat pump can be installed with virtually no protective area.
Ready for doors, windows or basement shafts.
The feature opens up new possibilities and makes previously impossible locations a viable option.
Flexibility at the touch of a button.
Your installer activates the flexible space function if your installation requires a minimal protective zone.

A look under the cover

How does the flexible space function work?

The flexible space function is not merely an add-on; it’s a fully integrated system function that requires your careful consideration from the start. This option demands technical adjustments, as the standard product does not support it. Our engineers have meticulously redeveloped the heat pump control software, ensuring seamless operation while significantly reducing space restrictions.

Once activated, this feature is permanently active and influences various components within the device. You can expect a slight increase in electricity consumption, approximately 25 kW/h per year. Your installer is able to activate the flexible space function, granting you a new level of freedom in placing your heat pump.

Understanding the difference.

The flexible space function in action.

The following images illustrate how much spacing you can save with the flexible space function activated, revealing installation opportunities that were never possible before.

Freestanding heat pump installation
Heat pump wall installation

heat pump protective zone without flexible space function

heat pump protective zone with flexible space function

On the left you can see the freestanding unit before the flexible space function. It requires 1 meter radius as a protective area around the heat pump.

On the right you can see the freestanding installation after activation of the flexible space functionality. The heat pump now only requires 0.5 meters at the back of the heat pump and 0.1 m space from the ground.

On the left you can see the heat pump as a wall installation e.g. next to or below a window of a home. Before activating the flexible space function the heat pump needs a 1 meter radius in front of the heat pump and 0.25 meters distance to the wall.

On the right you can see the image of the heat pump, which after activating the flexible space function no longer needs any space around the heat pump, it merely keeps the 0.25 distance to the wall.

Our new heat pump topseller

Flexible space function included: our aroTHERM plus range.

Efficiency meets flexibility – our aroTHERM plus range leaves no room for compromises. With the new flexible space functionality it fits almost every installation area. And it also meets your efficiency requirements: With up to A+++ and a COP of 5.4 at A7/W35 it is our most efficient air-to-water heat pump yet. This not only saves you heating costs, but also makes your home more eco-friendly. And despite all these impressive key figures, your neighbour is unlikely to even notice it: the aroTHERM plus is even quieter than its predecessor.

Vaillant. That's innovation for over 150 years. And reliable comfort for you.

When you choose Vaillant, you're investing in reliability. Our commitment to quality is evident in every component we design and every system we create. We rigorously test our products beyond industry standards because we understand that heating isn't just about technology – it's about providing dependable comfort for every home.

Discover what's behind our quality promise

Frequently asked questions

Still have questions? We have the answers.

Does activating the flexible space functionality affect my heat pump's efficiency?

When your installer activates the flexible space functionality, your aroTHERM plus will maintain its efficiency ratings. The feature works by intelligently managing various system components through our specially developed control software. While this results in a minimal increase in electrical consumption (approximately 25 kWh per year), this small investment delivers value through unprecedented installation flexibility. The feature has no impact on your system's lifespan or reliability, ensuring you continue to enjoy the exceptional efficiency and comfort that makes the aroTHERM plus our most advanced heat pump solution.

Which heat pump models feature the flexible space functionality?

The innovative flexible space functionality is currently available with our aroTHERM plus and aroTHERM perform heat pump models. The feature has been specifically engineered for the new models, allowing these highly efficient air-to-water heat pumps to be installed with minimal protective zones. When purchasing a new system, your installer can activate the feature during setup, giving you unprecedented freedom in positioning your heat pump. As we continue to develop our product range, we remain committed to expanding this technology across more of our sustainable heating solutions, making efficient heating accessible for even more homes.

Dive deeper into efficient heating.

Dog sleeping infront of a heat pump in the garden

Flexible space function: breaking boundaries in heat pump installation.