Yes. Heat pumps work in UK winters, and they do it well. The myth that they “stop working below freezing” is one of the most common reasons homeowners hesitate to switch from a gas boiler, and it is wrong.
If a heat pump is sized properly for your property and installed to a good standard, it will run through every cold snap the Cotswolds throws at it.
Where the myth comes from
Older heat pumps from the early 2010s did struggle in very cold weather. Compressor technology has moved on considerably since then. Modern air-source units use refrigerants and inverter compressors that work efficiently down to minus 20 Celsius, which is colder than the UK records in most years.
The cleanest example is Norway. Around 63% of Norwegian homes run on heat pump heating, and Norwegian winters routinely sit between minus 5 and minus 15 Celsius for weeks at a time. If heat pumps couldn’t handle real cold, Norway wouldn’t be the world’s most enthusiastic adopter.
What actually matters
Two things decide whether a heat pump will heat your home reliably in winter:
- The system has to be designed for your specific property. That means a heat loss calculation, sensible radiator sizing, and the right kW rating.
- The install has to be done properly. Poorly insulated pipework, badly placed external units, or short-cycling controls are what people mistake for “the heat pump failing”.
Skipped or rushed installs are the source of most of the horror stories you read about online. A correctly designed and installed system just heats the house.
What our engineer says
“As long as they’ve been designed for the individual property and installed to a high standard, they will always work. For example, Norway has 63% of houses adopted heat pumps, and that’s pretty cold out there.”
Talk to us
Get in touch for a heat pump consultation and we’ll work out the right design for your property. If funding is on your mind, our 2026 Boiler Upgrade Scheme offer covers most of the install cost.