Heat pumps, made simple
Thinking about replacing your boiler with a heat pump? These guides explain whether heat pumps are worth it, how to check if your home is suitable, what installation involves, how much they cost, and how to run one for less.
Where do you want to start with heat pumps?
Switching to a heat pump is a journey, from deciding if it suits your home to running it for less. Jump to the stage that fits where you are.
Is a heat pump right for your home?
Start with the big questions: whether a heat pump makes sense, how it compares with a gas boiler, and whether your home is likely to be suitable.
A clear look at the costs, savings, comfort and trade-offs of switching from a gas boiler to a heat pump.
Worth it? →
Compare upfront costs, running costs, efficiency, comfort and long-term value side by side.
Compare →
The key things that affect suitability — insulation, radiators, space and heat loss — explained in plain English.
Check your home →Plan the right heat pump setup
A good heat pump installation starts with proper design. Learn how heat loss, heat pump size and radiators all affect comfort and running costs.
The room-by-room survey that sizes your heat pump and underpins a proper system design. Skip it and you risk an oversized, under-performing install.
Why it matters →
Why the right heat pump size depends on your home’s heat loss, not the size of your current boiler.
Sizing explained →
When existing radiators can stay, when they need upgrading, and why flow temperature changes the answer.
Radiators →Understand the cost
See what heat pumps cost to install, how the Boiler Upgrade Scheme works, and what affects your running costs after installation.
Typical 2026 UK install prices, the extras most quotes don’t mention up front, and what can push a quote higher or lower.
See prices →
How the government grant works, who can apply, and how much support you may be able to get towards your install.
Grant explained →
What affects day-to-day running costs, and how heat pumps compare with gas heating once the system is dialled in.
Run the numbers →Run your heat pump for less
Get more from your heat pump with better settings, smarter tariffs and simple changes that can reduce your energy bills.
The settings and habits that help your heat pump run more efficiently — flow temperature, weather compensation, schedules and the controls people get wrong.
Tune your system →Octopus Cosy
A closer look at Octopus Cosy and how its cheaper windows can work for heat pump households on the right schedule.
Read guide →Not sure where to start?
Heat pump content can feel intimidating. You don’t need to read everything — most households only need one or two guides below before they’re ready to get quotes. Pick the line that sounds most like you.
All heat pump guides
Browse all our heat pump guides in one place.
