Electric Heater Vs Gas Central Heating
Assumptions: 2kW electric heater for one room versus gas heating serving multiple rooms. Gas efficiency and standing charges vary.
| Scenario | Electric heater | Gas central heating | Likely better choice |
|---|---|---|---|
| One room for 1 hour | 49p | Depends on boiler and system | Electric can be practical |
| Whole home for evening | Often high | Usually better suited | Gas central heating |
| Personal warmth in bed | Use blanket instead | Whole-home heat | Electric blanket |
Cost comparison
Electricity is much more expensive per kWh than gas under the current Ofgem averages.
When each option wins
The comparison changes when you only need one occupied room for a short time.
What can change the result
Gas boiler efficiency, thermostat settings and the number of heated rooms matter more than a simple unit-rate comparison.
FAQs
Is electric heating cheaper?
Usually not for whole-home heating.
When does it make sense?
Short, targeted use in one room.
Does gas standing charge matter?
It matters for total bills, but not the marginal cost if you already use gas.
Can I use this for heat pumps?
No. Heat pumps need a coefficient-of-performance comparison.
Last reviewed 3 May 2026. Source: Ofgem energy price cap. Figures are estimates. Actual prices vary by region, supplier, tariff, payment method and meter type.