When considering an air source heat pump installation for your home in Newcastle or the North East, one question often comes up: “Are air source heat pumps noisy?” It’s a valid concern. No one wants to trade lower energy bills for a disruptive hum outside the living room window.
The truth is, modern air source heat pumps are far quieter than many people assume. Most operate at sound levels similar to a fridge or dishwasher, and with the right placement and model choice, the noise can be virtually unnoticeable.
That said, it’s not just about decibels, regulations, installation techniques, and even seasonal changes all influence how noticeable an air source heat pump sounds.
In this article, we’ll break down everything you need to know, from average noise levels and UK noise regulations, to expert tips on minimising sound.
What are the Noise Levels of Air Source Heat Pumps?
Air source heat pumps typically produce noise levels between 40 and 60 decibels, which means they operate at sound levels comparable to a dishwasher or microwave. While this might seem a bit loud at first glance, it’s important to consider that these levels are generally perceived as background noise once you get used to them.
Interestingly, the noise levels from air source heat pumps can vary significantly. They range from 40 to 80 decibels, depending on the model and its operating conditions. However, most modern units are designed to keep the noise to a minimum, ensuring they are less disruptive than you might expect.
This means that while they might be the loudest among various types of heat pumps, they are still designed to blend into the background noise of your home.
Think of it this way: the next time you hear a slight hum near your heating system, it’s probably just your air source heat pump working efficiently to keep your home warm. This level of noise is a small trade-off for the significant energy savings and environmental benefits these systems offer.
What Does an Air Source Heat Pump Sound Like?
So, what does an air source heat pump actually sound like? You might be surprised to learn that it’s not as noisy as you might think. When operating, air source heat pumps produce a low whirring sound, which is often compared to the hum of a refrigerator. This sound is largely generated by the pump’s fans and compressors.
Many people mistakenly believe that air source heat pumps are very noisy. This is often attributed to the fan in the external unit of the outdoor unit. However, in reality, the noise produced is similar to that of common household appliances like dishwashers and microwaves.
This means that while you might hear a slight hum, it won’t be any more disruptive than the everyday sounds you’re already accustomed to.
Many air source heat pumps operate at noise levels similar to, or even quieter than, traditional gas boilers. If you’re used to the sound of your current heating system, transitioning to an air source heat pump won’t be a jarring change.
The key to a quieter experience lies in understanding these sound levels and knowing what to expect.
Noise Regulations for Air Source Heat Pumps
Adhering to noise regulations is necessary when installing air source heat pumps in UK homes. In the UK, regulations mandate that air source heat pumps should not exceed 42 decibels when measured from neighbouring properties, which are approximately one metre away.
This ensures that the operation of your heat pump doesn’t contribute to noise pollution in your community.
Consulting local authorities before installation ensures your setup meets all specific noise regulations. Installations close to neighbours’ windows have a noise limit of 45 decibels, while at night, noise limits should stay below 40 decibels. This helps maintain a peaceful environment, especially in residential areas, where noise can feel louder.
Placing your air source heat pump near natural sound barriers like hedges helps minimise noise disturbance. Installers must adhere to the MCS 020 standard to ensure the heat pump’s noise levels remain low and compliant with regulations. These guidelines help you avoid potential noise complaints and ensure a harmonious neighbourhood.
At Future Heat, we’re fully MCS-certified and trusted by homeowners throughout Newcastle and the North East for compliant, expert air source heat pump installations.
We understand the importance of proper placement and noise regulation and take every step to ensure a smooth, stress-free experience. Request a free air source heat pump installation quote today and take the first step toward quieter, more efficient home heating.
Indoor Noise Experience
Inside your home, the noise from an air source heat pump is generally classified as low-level to moderate. Imagine the constant hum of a fridge or dishwasher – that’s the kind of sound level you can expect. This steady hum, usually between 40 and 60 decibels, is designed to be as unobtrusive as possible.
Proper installation significantly minimises indoor noise. Positioning the heat pump appropriately diminishes sound significantly with distance. Even if the pump is installed outside a window, keeping the window closed greatly reduces the noise indoors.
Heat pumps are among the least mentioned sources of indoor noise complaints in residential areas. Most homeowners notice the noise only when standing close to the installation site with windows open.
Correct installation and consumer education make heat pump noise unlikely to be a nuisance.
Quietest Air Source Heat Pumps on the Market
Several models of air source heat pumps are designed for those particularly sensitive to noise. The Ideal Logic Air heat pump, for example, operates at a remarkably low noise level of 38 decibels while heating. Similarly, Vaillant’s aroTHERM Plus heat pump ranges from 35 to 38 decibels, depending on the model size.
Daikin E-Series heat pumps are also known for their quiet operation, achieving noise levels of around 40 decibels or even lower, depending on the specific model. For comparison, ground source heat pumps typically generate noise levels around 40 to 42 decibels, making them slightly quieter than their air source counterparts.
Consulting the Quiet Mark helps identify heat pump models certified for low noise levels under the microgeneration certification scheme. This certification ensures the heat pump will not disrupt your peace, offering a significantly quieter alternative to traditional heating systems.
Methods to Reduce Air Source Heat Pump Noise
Several effective methods can reduce the noise from your air source heat pump. Proper insulation and strategic placement mitigate noise for both users and neighbours. Installing the heat pump away from the corners of the property reduces sound reflection from walls.
Soundproof barriers and anti-vibration mounts significantly minimise noise. Anti-vibration feet reduce mechanical vibrations that produce less noise, making the operation smoother and quieter.
Barriers like fences or hedges help diminish sound transmission to neighbouring properties, addressing potential noise impacts, lowering noise levels, and reducing noise.
Implementing these methods ensures your air source heat pump operates as quietly as possible, maintaining a peaceful environment for everyone.
Comparing Air Source and Ground Source Heat Pumps
One key difference between air source and ground source heat pumps is their noise levels. Air source heat pumps can produce noise levels up to 60 decibels, comparable to gas boilers. Ground source heat pumps operate between 40 and 42 decibels, making them generally quieter.
Ground source heat pumps are quieter because they do not require a fan, a primary noise source in air source systems. This makes the ground source heat pump a preferable option for those sensitive to noise.
In comparison to traditional heating systems, the noise generated by ground source heat pumps is often significantly lower. This makes both types of heat pumps quieter and more environmentally friendly alternatives to conventional heating methods.
Still unsure if an air source heat pump is right for you? Take a look at the complete pros and cons of air source heat pumps to make an informed decision.
Factors Influencing Air Source Heat Pump Noise
Several factors contribute to the noise output of air source heat pumps. The type and design of a heat pump, such as the fan model and speed, greatly influence noise production. Proper installation is important for reducing operational noise, as poor installation can lead to heightened sound levels.
Environmental factors also play a role. For instance, outdoor temperature and natural noise from the surroundings can change how noisy the heat pump appears during operation.
During colder months, heat pumps can produce additional sounds, such as whooshing noises during defrosting or de-icing modes, due to increased workload.
Understanding these factors helps you choose the right heat pump model and ensures it operates quietly and efficiently in your environment.
Not sure what size heat pump you’ll need? Don’t worry, we’ve got you covered. Check out our comprehensive guide on choosing the right size air source heat pump to ensure you’re investing in a system that delivers optimal performance and efficiency for your space.
Impact of Seasonal Changes on Air Source Heat Pump Noise
Seasonal changes significantly impact the noise levels of your heat pump. In colder conditions, heat pumps work harder, leading to slightly elevated noise levels compared to warmer months. This is because the system has to operate more intensely to maintain the desired temperature.
During cold weather, you might also hear a whooshing sound as the heat pump goes into defrosting or de-icing modes. These sounds are a normal part of the heat pump’s operation and indicate that the system is working efficiently to prevent ice buildup.
Knowing how seasonal changes affect noise levels helps you manage and anticipate variations, ensuring your heat pump continues to operate quietly and effectively throughout the year.
Long-Term Noise Considerations
Over time, the noise levels of your heat pump may increase as components wear down. Regular maintenance is key to preventing noise issues and ensuring that your system continues to operate efficiently. Excessive noise during winter could indicate that the heat pump is overworked due to airflow restrictions or installation issues.
Having your heat pump inspected by a professional annually can help identify and address any issues before they become significant problems. It’s also worth noting that because air source heat pumps are entirely above ground, any changes in noise levels are easier to detect.
Considering these long-term factors helps maintain a quiet and efficient heating system for years to come.
Ideal Installation Practices
Proper installation minimises noise from your heat pump. Install air source heat pumps away from windows and as far as possible from neighbours’ properties to minimise noise impact. Acoustic enclosures can reduce noise output by up to 32 decibels, while suitable materials within the property limit vibrations.
A professional installer should evaluate noise levels and placement to ensure the heat pump is installed correctly and operates quietly and efficiently. These practices help you avoid potential noise issues and ensure a peaceful living environment.
Assessing Noise Levels Before Purchase
Assessing the noise levels of different models is vital before purchasing a heat pump. Manufacturer specifications typically include decibel levels during operation, which is essential for comparing noise output.
Checking the manufacturer’s website or online manual provides detailed information about the noise level of a specific model.
Comparing noise levels ensures the selected air source heat pump will operate quietly within your specific environment. This careful assessment helps you choose the best model for your needs, ensuring both efficiency and quiet operation.
Take a look at our range of air source heat pumps to find the right unit that fits your home, budget, and comfort preferences.
Potential Noise Complaints and Solutions
Communicating installation plans to your neighbours prevents misunderstandings and complaints. If neighbours express concerns about noise, an open discussion addresses their worries directly.
Consulting local authorities ensures installations meet regulatory standards for noise emissions from air source heat pumps and planning permission.
Maintaining good relations with neighbours enhances community living and reduces potential noise complaints. Taking these steps ensures a harmonious environment and smooth operation of your heat pump in the house.
Frequently Asked Questions (FAQs)
Air source heat pumps usually make noise levels between 40 and 60 decibels, which is similar to the sounds of everyday appliances like dishwashers and microwaves. So, you can expect them to be fairly quiet!
Absolutely! Many air source heat pumps can operate as quietly as gas boilers, especially when they’re installed and maintained properly.
To reduce heat pump noise, try proper insulation, strategic placement, soundproof barriers, and installing anti-vibration mounts. These methods can help create a more peaceful environment.
Yes, there are noise regulations for air source heat pumps, typically not exceeding 42 decibels from neighbouring properties in the UK. It’s a good idea to check with local authorities before you install one.
Before buying a heat pump, definitely check the manufacturer’s noise level specs, compare models, and think about how sound will affect your living space. It’s all about finding a balance that keeps your home comfortable and quiet.
Final Thoughts
In conclusion, air source heat pumps, while producing some noise, are generally not disruptive and can be managed with proper installation and maintenance. Understanding the noise levels, regulations, and methods to reduce sound can help you make an informed decision.
Embracing renewable energy solutions like air source heat pumps can significantly benefit the environment and your energy bills. If you’re wondering how much they actually cost to install and run, check out our full guide to air source heat pump costs.

Myles Robinson is a seasoned expert in the boiler and home improvement industry, with over a decade of experience. He is deeply committed to environmental sustainability, actively promoting energy-efficient heating solutions to help households reduce their carbon footprint. By combining industry expertise with a dedication to environmental responsibility, Myles continues to lead efforts in transforming home heating practices towards a more sustainable future.