Air Source Heat Pumps in the UK: Costs, Advantages, and Government Funding
Rising energy bills are a growing concern for UK households, prompting many homeowners to explore efficient, long-term heating solutions. Air source heat pumps (ASHPs) are quickly becoming a leading alternative to traditional gas boilers.
But how do they work, how much do they cost, what funding is available, and how much can you realistically save? Here’s a complete guide.
What Is an Air Source Heat Pump?
An air source heat pump is an environmentally friendly heating system that draws heat from the outside air—even in cold weather—and uses it to warm your home and provide hot water.
Unlike conventional gas or oil boilers, ASHPs transfer heat instead of burning fuel, making them far more energy-efficient and sustainable.
They are ideal for homeowners who want to:
Cut household energy bills
Reduce carbon emissions
Upgrade to a future-proof heating system
Replace an old or inefficient boiler
How Do Air Source Heat Pumps Work?
Air source heat pumps extract heat from the air using a refrigerant fluid. This fluid is then compressed to increase its temperature, transferring warmth into your central heating system.
For every unit of electricity used, an ASHP can generate approximately three units of heat, resulting in a Coefficient of Performance (COP) around 300%, making them much more efficient than standard boilers.
Air Source Heat Pump Costs in the UK
The installation cost of an air source heat pump usually falls between:
£8,000 – £14,000
Actual costs depend on factors such as:
Home size
Current heating setup
Insulation quality
Radiator upgrades
Hot water cylinder installation
Although the initial investment is higher than replacing a boiler, government incentives can significantly offset the cost.
Government Support for Air Source Heat Pumps
The UK Government encourages adoption of low-carbon heating through schemes such as the Boiler Upgrade Scheme, making ASHPs more affordable for homeowners.
Boiler Upgrade Scheme Grant
Homeowners in England and Wales may qualify for:
💷 Up to £7,500 towards the installation of an air source heat pump
The grant is applied directly through your installer, reducing your upfront expense instantly.
In Scotland, similar support is available via Home Energy Scotland grants and loans.
Who Is Eligible?
You could be eligible if you:
Own your home
Are replacing a fossil fuel heating system
Have a valid Energy Performance Certificate (EPC)
Meet minimum insulation standards
Many households are unaware they qualify, so it’s worth checking.
Potential Savings with an Air Source Heat Pump
How much you save depends on your current heating system, energy tariffs, and the efficiency of your home. Typical annual savings include:
Old electric heating systems: £800 – £1,200
Oil boilers: £400 – £700
LPG systems: £300 – £600
Modern gas boilers: Smaller savings, but protection against future energy price rises
Over 10–15 years, this could save thousands of pounds in energy costs.
Additional benefits:
Increased property value
Improved EPC rating
Reduced carbon footprint
Less reliance on fossil fuels
Are Air Source Heat Pumps a Good Investment?
For many UK households, especially those off the gas network or with older heating systems, air source heat pumps represent a smart long-term solution.
With grants covering up to £7,500, installing an ASHP is now more accessible than ever. It also helps future-proof your home against rising energy costs and supports the UK’s transition to low-carbon heating.
Take Action Today
If you’re thinking about installing an air source heat pump, now is the perfect time. Government funding is available, but waiting may mean missing out.
✔️ Check if you qualify for government support
✔️ Estimate your potential savings
✔️ Get advice from trusted specialists
Fill out our enquiry form today for free, no-obligation guidance and discover how an ASHP could reduce your energy bills and make your home more efficient.