Are Heat Pumps Worth It in the UK?
For most homes coming off oil, LPG or electric heating, yes. A heat pump cuts those bills and the £7,500 grant takes most of the sting out of the upfront cost. If you are on cheap mains gas the sums are tighter, and the honest answer there depends on your house, your insulation and how long you plan to stay.
Quick Answer
Heat pumps are worth it for most UK homes replacing oil, LPG or electric heating, where they cut running costs sharply and the £7,500 grant offsets the upfront cost. For homes on cheap mains gas the case is weaker and payback longer, so it comes down to insulation, house size and how long you will stay.
Honest assessment as of early 2026, based on UK running costs and installer quotes.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
Is a heat pump worth it for your home?
The answer hinges on what you heat with now. Here is the honest picture by current heating type, for a reasonably insulated home.
| You currently heat with | Worth it? | Why |
|---|---|---|
| Oil or LPG | Strong yes | Biggest running-cost saving, fastest payback |
| Electric storage heaters | Strong yes | Heat pump uses a third of the electricity for the same heat |
| Mains gas, well insulated | Often yes | Modest bill change, but grant, comfort and lower carbon stack up |
| Mains gas, poorly insulated | Insulate first | Fix insulation before the heat pump, or running costs disappoint |
A heat pump tariff such as Octopus Cosy tilts the gas comparison further in the heat pump's favour. See heat pumps vs boilers.
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Get a Quote →Heat pump pros and cons
Pros
- Cheaper to run than oil, LPG and electric heating
- £7,500 grant and 0% VAT cut the upfront cost
- Lasts 15 to 20 years, longer than a boiler
- Lower carbon, cleaner still on a renewable tariff
- Improves your EPC rating and can lift property value
- Provides heating and hot water from one system
Cons
- High upfront cost before the grant
- Smaller saving if you are on cheap mains gas
- Needs decent insulation to perform well
- Older radiators may need upsizing
- Outdoor unit needs space and makes some noise
Are heat pumps expensive to run?
No, this is where heat pumps earn their keep. By turning one unit of electricity into 3 to 4 units of heat, a heat pump runs well below oil, LPG and electric heating, and lands close to mains gas. A specialist tariff pulls the cost down further.
| Heating System | Annual Cost (avg 3-bed) |
|---|---|
| Oil boiler | £1,500–£2,200 |
| LPG boiler | £1,800–£2,600 |
| Electric storage heaters | £1,800–£2,500 |
| Gas boiler | £1,000–£1,500 |
| Heat pump | £700–£1,100 |
| Heat pump on a heat pump tariff | £500–£900 |
Heat pump payback period
After the £7,500 grant, payback depends almost entirely on what you are replacing. Coming off oil or LPG, the annual saving is large and the net cost is low, so it pays back quickly. Coming off gas, the saving is smaller and payback is longer, which is why the gas case leans on comfort, carbon and the grant rather than pure bill cuts.
| Replacing | Typical Annual Saving | Payback (after grant) |
|---|---|---|
| Oil boiler | £600–£1,300 | 3–7 years |
| LPG boiler | £900–£1,600 | 2–6 years |
| Electric storage heaters | £1,000–£1,700 | 2–5 years |
| Gas boiler | £0–£400 | 10+ years |
Net cost after the £7,500 grant is usually £500 to £6,500. See the full heat pump cost breakdown.
Are Heat Pumps Worth It FAQ
Are heat pumps worth it in the UK?
For most homes replacing oil, LPG or electric heating, yes. The running-cost saving is large and the £7,500 grant offsets the upfront cost, giving payback in 2 to 7 years. For homes on cheap mains gas the saving is smaller and payback longer, so the case rests more on comfort, carbon and the grant.
Are air source heat pumps any good?
Yes, for a well-insulated home with correctly sized radiators. A good air source heat pump with a SCOP of 3.5 to 4 is cheaper to run than oil, LPG and electric heating, lasts 15 to 20 years, and qualifies for the £7,500 grant.
Do heat pumps save money on running costs?
For most homes, yes. A 3-bed home spends £700 to £1,100 a year running a heat pump, dropping to £500 to £900 on a specialist heat pump tariff. That undercuts oil, LPG and electric heating, though the saving against cheap mains gas is smaller. The grant and long lifespan strengthen the case.
Are heat pumps cheaper to run than gas?
Usually they land close to mains gas rather than clearly below it, because electricity costs more per unit than gas. On a specialist heat pump tariff a heat pump can match or beat gas. Against oil, LPG and electric heating it is clearly cheaper.
Is a heat pump worth it if I have gas central heating?
It is a closer call. The bill saving against cheap mains gas is small, so the value comes from the £7,500 grant, lower carbon, improved EPC and long lifespan rather than fast payback. A well-insulated home and a heat pump tariff improve the case.
What is the payback period for a heat pump?
After the £7,500 grant, 2 to 7 years when replacing oil, LPG or electric heating, and 10+ years when replacing cheap mains gas. The net cost after the grant is usually £500 to £6,500, which is what drives the payback.
Do heat pumps add value to a home?
They can. A heat pump typically improves a home's EPC rating by 2 to 3 grades, and a better EPC is linked to higher property value and easier sale or rental. The long lifespan and low running costs are also a selling point.
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Related Guides
Heat Pump Cost
Full price breakdown by type and home size, plus running costs.
Heat Pump vs Boiler
Cost, running costs, lifespan and carbon compared, plus hybrids.
Air Source Heat Pumps
Cost, best brands, running costs, and pros and cons for UK homes.
Heat Pump Grants
The £7,500 Boiler Upgrade Scheme, Scotland grants, and 0% VAT.
Sources
- GOV.UK: Boiler Upgrade Scheme (BUS)
- Energy Saving Trust: Air Source Heat Pumps
- MCS: Certified Products & Installers
Last updated: June 2026
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He researches every battery and inverter brand against manufacturer datasheets, MCS and Ofgem data, and feedback from the MCS-certified installers in our directory before publishing.
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