Heat Pump vs Boiler — Which Is Right for You in 2026?
With the £7,500 Boiler Upgrade Scheme grant still available and energy prices remaining unpredictable, more homeowners are seriously considering making the switch from a gas boiler to a heat pump. But is it the right move for everyone? Here's an honest comparison — no sales pitch.
The upfront cost reality
A new gas boiler typically costs between £1,800 and £3,500 installed. A heat pump installation costs more upfront — but the £7,500 BUS grant changes the picture significantly. Many homeowners in Chesterfield and Derbyshire end up paying less for a heat pump than a new boiler once the grant is applied.
The grant is available until 2028, but funding is allocated on a first-come, first-served basis. It won't be around forever.
Running costs — the honest picture
Heat pumps run on electricity, which is currently more expensive per unit than gas. However, a well-designed heat pump system typically achieves a Coefficient of Performance (COP) of 3–4 — meaning for every 1 unit of electricity used, it produces 3–4 units of heat. This offsets the higher electricity cost.
With smart electricity tariffs like Octopus Agile or Economy 7, running costs can be reduced further. The long-term trajectory also favours heat pumps as the grid decarbonises and gas prices remain volatile.
Side-by-side comparison
| Factor | Heat Pump | Gas Boiler |
|---|---|---|
| Upfront cost | Higher — but up to £7,500 grant available | Lower — typically £1,800–£3,500 installed |
| Running costs | Lower long-term, especially with smart tariffs | Dependent on gas prices, which remain volatile |
| Carbon emissions | Significantly lower — runs on electricity | Higher — burns fossil fuel |
| Installation time | 4–7 days depending on system complexity | Usually 1 day |
| Lifespan | 20+ years with annual servicing | 10–15 years typically |
| Maintenance | Annual service recommended | Annual Gas Safe service required |
| Planning permission | Usually not required (permitted development) | Not required |
| Future-proofing | Aligned with UK net zero targets | Gas boiler ban planned for new builds from 2025 |
When a boiler still makes sense
If your home is a flat, a listed building, or has very poor insulation that can't be improved, a new boiler may be the more practical choice right now. Similarly, if you're planning to sell in the next 2–3 years and don't want the disruption of a larger installation, a boiler replacement might be the right call.
We'll always give you honest advice on both options. We install both — so we have no reason to push you towards one or the other.
The bottom line
For most homeowners in Chesterfield and Derbyshire who own their property and are replacing a fossil fuel boiler, a heat pump with the BUS grant is the better long-term investment. Lower running costs, lower carbon, longer lifespan, and a significant government contribution towards the cost.
But the right answer depends on your specific property. The only way to know for certain is a proper heat loss survey — which we offer for free.
Not sure which is right for you?
Book a free survey and we'll assess your home and give you an honest recommendation — heat pump or boiler, whichever makes more sense for your situation.