Are air source heat pumps worth it?
Air source heat pumps have become an increasingly popular heating option for homeowners across the UK. As a result, one of the most common questions is whether an air source heat pump is actually worth the investment.
The answer depends on several factors, including the insulation levels within the property, the energy tariff being used, the existing radiator setup and the overall quality of the installation. Let’s explore these aspects in more detail, so you can determine if the heating solution is right for your home.
Are heat pumps worth it?
| Property type | Is a heat pump worth it? | Why |
| Rural cottages using oil heating | Usually yes | Homes off the gas grid have high oil costs, so a heat pump can reduce expenses |
| New build | Yes | New builds are typically well-insulated and designed for low-temperature heating systems |
| Home with solar panels | Very often yes | Solar panels can help offset the electricity used by a heat pump |
| Older homes | Sometimes | A heat pump can still work, but insulation upgrades and larger radiators may be required |
| 3-4 bedroom family home | Often yes | Many standard family homes can run efficiently with a properly designed system and suitable insulation |
For many homeowners, an air source heat pump is absolutely worth the expense. However, we understand not every home is the same. Older or poorly insulated homes may require upgrades before a heat pump becomes a cost-effective option.
Properties with good insulation, modern windows and correctly sized radiators or underfloor heating tend to see the best results. Homes that rely on expensive fuels such as oil can also benefit significantly from switching to a heat pump.
What is an air source heat pump and how does it work?
An air source heat pump takes heat from the air outside and uses it to warm a home and its hot water system, even when it’s cold outdoors.
The system works by drawing outside air through an outdoor unit, where a refrigerant absorbs the heat. As it absorbs this energy, the refrigerant changes from a liquid into a gas. A compressor then increases the pressure of the gas, which raises its temperature significantly. This heat is then transferred into the home’s heating and hot water system. Once the heat has been released, the refrigerant cools and returns to a liquid state, allowing the cycle to repeat.
Discover more about how air source heat pumps work in our helpful blog post.
Should you get an air source heat pump?
Now that you have a better understanding of how air source heat pumps work and the types of homes they are best suited to, here are some of the main reasons homeowners choose to install them.
Lower energy bills
ASHPs can reduce heating costs, particularly in well-insulated homes.
Improved efficiency
Heat pumps transfer existing heat rather than generating it, making them highly energy-efficient year-round.
Reliable heating
Modern air source heat pumps provide consistent heating and hot water, even during colder winter temperatures.
Future-proof alternative
As the push to reduce reliance on fossil fuels continues, heat pumps offer a lower-carbon alternative that can support long-term sustainability goals.
The truth about heat pumps
There are a few misconceptions about heat pumps and how they function. They’re an efficient heating solution for many homes in the UK, including older properties; however, they’re not automatically the best option for every home. Let’s clarify some of this information.
Heat pumps still work in cold weather
One of the most common misconceptions is that air source heat pumps stop working during winter. This is inaccurate. Modern ASHPs are designed to operate efficiently in sub-zero temperatures.
Insulation and system design matter
Heat pumps are not simply a direct replacement for every boiler setup. They work most effectively in homes that retain heat well and use lower flow temperatures.
Installation quality makes a huge difference
A heat pump is only as good as the design and installation behind it. Poorly sized systems or incorrect setup can lead to higher running costs and disappointing performance.
So, are heat pumps any good? Deciding as a homeowner
It’s important to consider all your options when it comes to heating your home. Remember to assess your building’s insulation, radiator size and overall heating system suitability.
Alongside air source heat pumps, options such as combi boilers and hybrid heat pump systems may also be worth considering, depending on the age, layout and heating demands of the home. Read our full guide on whether air source heat pumps are any good.
What’s next for installers?
As demand for lower-carbon heating grows, more installers are training to work with air source heat pumps. Completing an air source heat pump course helps engineers develop the skills needed for efficient installation and system design. Intergas continues to support the industry through training hybrid heating innovation and future-focused heating solutions.
Government incentives and the ongoing shift away from fossil fuel heating are creating opportunities for heating engineers to offer heat pump installations alongside traditional boiler work. Enrolling in a course can be advantageous to help tradespeople stay up to date with industry changes.
FAQs: Is it worth getting a heat pump?
Do heat pumps actually save money?
Yes, they can save money but this is largely determined by insulation, electricity tariffs, radiator size and existing heating costs. Homes replacing oil or LPG systems often see greater savings.
Are air source heat pumps cheaper to run than gas boilers?
Yes, air source heat pumps can be cheaper to run than gas boilers in many homes, particularly well-insulated properties with correctly sized heating systems. For a more detailed comparison, read our blog that discusses heat pumps vs gas boilers.
Do air source heat pumps work in winter?
Yes, air source heat pumps do work in winter, including during cold UK temperatures. They work by extracting heat energy from the outside air, even when it feels cold outdoors, and transferring it into the home through a refrigerant and compressor system. This cycle repeats efficiently, providing homes with consistent heating.
Do heat pumps need bigger radiators?
Sometimes, yes. Air source heat pumps operate at lower flow temperatures than traditional gas boilers, so larger or more efficient radiators may be needed to maintain comfortable room temperatures. Air source heat pumps use radiators most effectively in well-insulated properties.
Are air source heat pumps noisy?
No, most modern air source heat pumps are not noisy. They produce a low, steady sound similar to an air conditioning unit or modern refrigerator while operating outdoors.
Can you get a government grant for a heat pump?
Yes, homeowners in the UK may be eligible for a government grant to help reduce installation costs. Heat pump government grants, such as the Boiler Upgrade Scheme, offer financial support for qualifying properties
