By extracting heat from the outside air, they provide reliable heating and hot water all year round.

Whether you’re upgrading your existing system or planning a new installation, an air source heat pump offers a modern, low-carbon alternative to traditional heating methods. However, as with any new technology, myths start to circulate leaving people unsure about available products and what they can do. Let’s tackle some of the most common myths surrounding air source heat pumps to set the record straight.

Myth 1: Air Source Heat Pumps Don’t Work in the UK

One of the most widespread myths about air source heat pumps is that they are not effective in cold weather. While it’s true that ASHPs extract heat from outdoor air, modern pumps are designed to operate efficiently even when temperatures drop below freezing. In fact, air source heat pumps have been installed successfully in many colder countries, including parts of Scandinavia and Canada, proving that they can handle the demands of British winter weather.

Myth 2: They Are Only Useful for New-Build Homes

Another misconception is that air source heat pumps are only suitable for brand new homes. While ASHPs are a great addition to modern, well-insulated properties, they can also be successfully installed in older buildings. In some cases, minor insulation upgrades may be recommended to enhance efficiency, but with the right planning, an air source heat pump can provide cost-effective heating to a variety of building types.

Myth 3: Air Source Heat Pumps Are Noisy

If you’re worried that installing an air source heat pump will lead to constant background noise, put your mind at ease. The latest heat pumps have been designed with noise reduction technology. Most pumps produce a level of sound that is comparable to a refrigerator, and units are quiet enough to be installed discreetly without disturbing the homeowner or surrounding neighbourhood.

Myth 4: Air Source Heat Pumps Are Too Expensive to Run

The idea that air source heat pumps are expensive to run is a common concern. While it’s true that installing a heat pump has upfront costs, the long-term energy efficiency they offer can lead to significant savings on energy bills. By transferring rather than generating heat, ASHPs can achieve efficiencies of 400% and beyond, meaning they use far less energy than conventional heating systems. Over time, the reduction in energy bills offsets the initial cost, making ASHPs an economical choice in the long run. And with Government grants available to help with the cost of installation, heat pumps are home investments well worth making.

Myth 5: They Don’t Provide Enough Heating for the Whole House

There’s a belief that air source heat pumps can’t adequately heat an entire family home, especially during the winter months. However, with the correct system size and set up, an ASHP can heat an average property comfortably. 

Myth 6: Heat pump installation causes major disruption.

False. Installing a heat pump is a full heating system upgrade, typically taking 5–7 days. Most installations include a new hot water cylinder and may require radiator upgrades. Although more involved than replacing a boiler, the work is carefully planned to minimise disruption.

Myth 7: ASHPs Don’t Work with Radiators

False. Air source heat pumps work perfectly with radiators, but they must be correctly sized. Most installations require larger radiators, although some existing radiators may already be suitable or can be reused elsewhere. A proper heat loss calculation ensures every room is heated correctly.

Myth 8: Heat Pumps Don’t Last Long

False. A quality air source heat pump is designed to provide many years of reliable heating. With correct installation and regular servicing, a typical lifespan of 15–20 years is generally expected. Like any heating system, some components may require repair or replacement over time, so annual maintenance is recommended to keep the system running efficiently and to help protect the manufacturer’s warranty.

Final Thoughts

Air source heat pumps are a proven, efficient way to heat your home, but they’re not the right solution for every property. The key to a successful installation is choosing the right system, designing it correctly and installing it to a high standard. If you’re considering an air source heat pump, our experienced team can provide honest advice and help you decide whether it’s the right choice for your home.