As more UK households explore ways to reduce energy bills and carbon emissions, air source heat pumps (ASHPs) have become a hot topic—especially with rising support through government grants like the £7,500 Boiler Upgrade Scheme. But there's one question we often hear at Wright Renewables:
"Do air source heat pumps work in the cold?"
The short answer? Yes—modern air source heat pumps are designed to work efficiently even in freezing temperatures. But let’s dig deeper and address common concerns, backed by data, real-world UK performance, and our expert insights.
An air source heat pump extracts heat from the outside air—even when it’s cold—and uses it to heat your home and hot water. Think of it like a fridge in reverse.
They’re powered by electricity but can deliver three to four times more energy in heat than they consume, making them an efficient and low-carbon heating solution.
The UK isn’t exactly known for tropical winters. Temperatures can regularly dip below zero in places like the Peak District, the Scottish Highlands, and rural Nottinghamshire.
So how do heat pumps perform?
According to a detailed study by the Energy Saving Trust, most modern systems used in the UK work effectively in temperatures as low as -15°C. Even when frost bites, these systems continue to extract warmth from the air.
"It’s a myth that heat pumps only work in warm climates. In fact, they’re widely used in Scandinavia, where winters are much harsher than here in the UK." — Adam Roberts, Renewable Strategy Advisor, Wright Renewables
Here’s what the data tells us:
“Air source heat pumps work efficiently even in the depths of winter. They’re built to withstand UK weather conditions.”
– Lee Rolfe, Director at Wright Renewable Heating
Countries with far colder climates than the UK rely heavily on ASHPs. Norway, Sweden, and Finland lead Europe in heat pump adoption, where temperatures can reach -25°C or lower.
According to the International Energy Agency, Scandinavian countries have shown that well-installed heat pumps are highly reliable even in Arctic winters.
“The idea that heat pumps don’t work in cold climates is outdated. Modern systems are designed for performance in all weather conditions.”
— Dr. Jan Rosenow, Director of European Programmes at the Regulatory Assistance Project (linkedin.com)
How do air source heat pumps work in cold weather? They use a refrigerant with a very low boiling point, often around -30°C. This allows the system to absorb thermal energy even from very cold air.
They also feature:
At Wright Renewables, we only install high-performance systems from trusted manufacturers that are proven in UK and European climates.
Learn more about our ASHP installations
We’ve installed ASHPs in Nottinghamshire, Lincolnshire, and South Yorkshire—regions known for brisk winters. Feedback has been overwhelmingly positive, with clients reporting warm homes and stable hot water even during snow days.
“We’ve had our heat pump from Wright Renewables for two winters now, and it’s kept us warm even when it dropped below freezing. Would never go back to oil.”
– Homeowner in Retford, Nottinghamshire
Let’s tackle a few common Google queries head-on:
Not if installed correctly. Proper sizing, good insulation, and a high-quality installation are essential for consistent winter performance.
Absolutely. With energy costs rising and grants of up to £7,500 now available, the return on investment is better than ever. According to Ofgem, switching from oil or LPG can save over £1,000 a year.
Yes. For most well-insulated homes, heat pumps can fully replace traditional heating systems—and without the carbon emissions.
To ensure your heat pump works efficiently even on the coldest days:
As the UK moves towards its net zero targets, heat pumps will play a central role. The government has already set a target of 600,000 installations per year by 2028, and new homes are being built with heat pumps as standard.
With support from initiatives like the Boiler Upgrade Scheme and backing from major energy providers like our partners at OVO Energy, we’re seeing real momentum.
So—do air source heat pumps work in the cold?
Yes. And with UK winters becoming milder on average and support from the government at an all-time high, there’s never been a better time to explore your options.
At Wright Renewables, we’re proud to help homeowners transition to clean, cost-effective heating—whatever the weather.
📞 Call us on 01909 813456 or email sales@wrightrenewables.co.uk
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