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Heat pump outdoor unit neatly against the facade
Knowledge base · Noise

Heat pump and noise: how many decibels?

Noise is a frequently asked question regarding heat pumps. We explain what is normal and how we keep it quiet.

A heat pump makes noise, but modern units are much quieter than a few years ago. More important than the decibels on paper is the placement and whether we stay within the applicable standards.

In short
  • Modern outdoor units are whisper-quiet
  • Legal noise standards apply at the neighbours'
  • Placement determines the noise experience
  • Enclosures and vibration dampers provide extra help
Standardlegal limit at the property boundary
Placementdetermines the experience
Whisper modequieter at night

What does the standard say?

For heat pumps, there is a legal noise standard at the property boundary with the neighbours. We dimension and install the unit so that we remain well within those limits; we check this in advance during the site survey.

Quiet through smart placement

We do not place the outdoor unit directly under a bedroom window or tight against the fence. With vibration dampers, the correct distance and possibly an enclosure we keep the noise low. Many units also have a quieter night mode.

Air-to-water heat pump outdoor unit on the facade
The right location and damping make the difference.

Ask during the site survey

Are you worried about noise? During the free site survey, we determine the best location and the quietest model for your situation, so that neither you nor your neighbours are bothered by it.

Frequently asked questions

Will I hear the heat pump inside?

The indoor unit is very quiet. You will hear the outdoor unit softly outside; with proper placement, you will not notice anything inside.

Can a heat pump be placed just anywhere?

Noise standards apply towards the neighbours. We ensure that the installation complies with these, and we include this in our advice.

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