Are Air Source Heat Pumps the Answer for Noise-Sensitive Homes?

Are you considering installing an air source heat pump but concerned about the noise it may produce? However, noise can be a significant factor to consider when choosing an ASHP system. Understanding the potential sound levels of ASHPs can help you make an informed decision. They are a low-carbon heating solution that reduces energy bills. Even though the government of the UK provides free air source heat pump grant to low-income families to upgrade their old heating system with this eco-friendly option. Switching out fossil fuels is also key to the UK’s ECO4 scheme to achieve net zero by 2050. While ASHPs are good for the environment, they can be noisy, causing complaints. However, air source heat pumps typically produce between 40- 60 decibels of noise, which can be considered a low to average noise level.

We will discuss the things that raise noise levels, how technology has improved to make them quieter, and some useful tips on reducing noise for a better living space.

Debunking the Noise Myth

Noise Levels

Modern air-source heat pumps are made to be quiet, but older ones still make noise. The noise level is usually between 40-60 decibels from one metre away. To give you an idea of how loud this is, compare it to a refrigerator or a talk in a quiet room. They also make about the same amount of noise as a heater. The only difference is that a heat pump is located outside; you probably won’t notice the noise as much.

It is important to remember that air-source heat pumps make different amounts of noise depending on the type and installation method.

Advancements in Technology

People think air-source heat pumps are noisy because older types are louder. But technological improvements have made a big difference in lowering the noise level. To improve the general sound performance of heat pumps, manufacturers have made changes like adding better insulation, lowering vibrations, and making the fans and compressors quieter.

Regulations and Standards

Noise rules ensure that air source heat pumps don’t disturb the peace and quiet of neighbourhoods. Careful thought is given to where to put the outdoor unit during the building process so that it doesn’t cause noise problems for nearby homes.

The heat pump should be placed as far away from windows and beds as possible.

Noise Perception

It is important to know that how people hear noise is subjective and can change from person to person. Something that one person might think is noisy might be fine for someone else. When judging the noise level of an air-source heat pump, it is important to consider your own interests and sensitivity levels.

Practical Tips for Minimising Noise

In case you are worried about how loud your air source heat pump is, here are some valuable tips to help lower the noise and make your home quieter:

1- Choose a Quiet Model

If you’re looking for an air source heat pump, choose one that is made to operate quietly. Manufacturers usually list the noise levels of their goods, which helps you make an informed choice.

2- Optimal Positioning

Work closely with a professional to find the best location for your heat pump during installation. Consider things like how far away the windows are, the buildings next door, and possible noise sources.

3- Acoustic Enclosures

Acoustic barriers around outdoor mechanical equipment can significantly reduce noise levels. These boxes meet the wind and sound dampening needs to meet noise standards.

4- Anti-Vibration Measures

Implementing anti-vibration mounts and isolators can help lower noise transfer and shocks. These steps reduce the humming sound that air source heat pumps often make.

5- Regular Maintenance

Maintaining and repairing your heat pump daily will help it work at its best. This includes cleaning the outdoor unit and ensuring leaves don’t get stuck, checking for broken parts, and fixing any strange noises immediately.

You can get the most out of an air-source heat pump by doing these useful things while reducing noise issues.


Despite what people think, air-source heat pumps are not as noisy as they debunked. They might be relatively loud up close, but this noise reduces significantly with distance. As such, they are installed in more hidden locations, so the sound is not overly intrusive. Additionally, implementing careful installation methods has considerably lowered noise levels. You can make your home quieter and more comfortable by picking a modern model meant to operate quietly, placing the outdoor unit carefully, and taking steps to stop vibrations.

Making the switch to green energy doesn’t have to be loud. Air-source heat pumps are a quiet, eco-friendly way to heat your home without disturbing the peace.

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