Heat pump vs gas
Heat pump vs gas at 18,000 kWh useful heat demand
This is an energy-cost comparison only. It does not determine whether a property is technically suitable for a heat pump.
Base: 25p electricity · COP 3.2 · 6.5p gas · 90% boilerGas saves £106/year
Heat pump £1,406/yr · gas £1,300/yr
Tariff and COP sensitivity
| Scenario | Electricity | COP | Gas | Heat-pump energy | Gas energy | Difference |
|---|---|---|---|---|---|---|
| Cautious for heat pump | 30p | 2.8 | 6.5p | £1,929 | £1,300 | gas saves £629 |
| Base | 25p | 3.2 | 6.5p | £1,406 | £1,300 | gas saves £106 |
| Favourable to heat pump | 20p | 3.5 | 7.0p | £1,029 | £1,400 | HP saves £371 |
Illustrative energy rates only. Seasonal COP depends on heat loss, weather, emitters, controls, hot-water demand and installation quality. This is not engineering or installer advice.