Heat pump vs boiler
Compare yearly running costs with your current heating.
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How this was calculated
We estimate how much heat your home needs in a year: from your own fuel use if you gave it, otherwise from typical use for the type and size of home, anchored on Ofgem's typical household gas use.
Your current system turns fuel into heat at about 85% efficiency. A heat pump typically delivers about 2.8 units of heat for each unit of electricity across a year, in line with UK field trials, and a little less for hot water.
Prices: current Ofgem price cap, GB average, Direct Debit, for electricity and gas. Standing charges are left out unless you choose to remove gas. Installation costs are not included.
Method version 1.0, checked 2026-10-02. Ofgem typical use · Electrification of Heat trial
Include installation costs
Average air source heat pump installation
About £13,300
MCS, certified installations in 2025
After the Boiler Upgrade Scheme grant
About £5,800
Average minus the £7,500 grant (England and Wales)
An average, not a quote: individual homes can cost much more or less. Installation costs are kept separate from yearly running costs.