Comparison
Gas Boilers vs Heat Pumps: The Full 2026 Comparison
Verdict: Heat pumps are the future-proof choice but gas boilers are cheaper now. Factor in the 2035 gas boiler ban before deciding.
Gas Boilers vs Heat Pumps: Side-by-Side Comparison
| Criteria | Gas Boilers | Heat Pumps |
|---|---|---|
| Upfront cost | £1500–£3500 | £7000–£15000 |
| Est. annual saving | £120/yr | £550/yr |
| Efficiency | 89% efficiency | 300%+ COP |
| Government grant | Check eligibility | Check eligibility |
| Carbon impact | Low carbon | Higher carbon |
| Installation time | 1–3 days | 1–2 days |
| Best for | Short-term budget installs | Long-term eco investment |
| Verdict | Heat pumps are the future-proof choice but gas boilers are cheaper now. Factor in the 2035 gas boiler ban before deciding. | |
Which Should You Choose?
Heat pumps are the future-proof choice but gas boilers are cheaper now. Factor in the 2035 gas boiler ban before deciding.
If you’re primarily concerned with upfront cost, Heat Pumps (typically £7000–£15000) is generally the lower-cost option. If you want potentially lower running costs and a smaller carbon footprint long-term, Gas Boilers may offer better long-term value.
Gas Boilers: Pros and Cons
| Pros | Cons |
|---|---|
| 89% efficiency efficiency | Higher upfront cost (£1500–£3500) |
| Est. £120/yr typical saving | Best suited to: Short-term budget installs |
| Lower carbon footprint | May require property assessment first |
Heat Pumps: Pros and Cons
| Pros | Cons |
|---|---|
| Lower upfront cost (£7000–£15000) | 300%+ COP only |
| Est. £550/yr typical saving | Higher carbon emissions |
| Best suited to: Long-term eco investment | Less future-proof |
Frequently Asked Questions
Which is cheaper — gas boilers or heat pumps?
Gas Boilers typically cost £1500–£3500, while heat pumps cost £7000–£15000. Compare both based on your property and energy needs.
Which saves more money — gas boilers or heat pumps?
Gas Boilers may save around £120/yr (estimated), while heat pumps may save around £550/yr (estimated). Actual savings depend on your property, usage and tariff.
Which is more efficient — gas boilers or heat pumps?
Gas Boilers have an efficiency of around 89% efficiency, compared to 300%+ COP for heat pumps.
Can I install both gas boilers and heat pumps?
Yes, many homeowners combine both technologies. A combined system may help reduce your bills further and increase your home’s energy independence.
Do both qualify for government grants?
Both gas boilers and heat pumps may qualify for government grants or schemes depending on eligibility. Criteria may change, so always check the latest requirements before proceeding.