Costs use 26.32p per kWh, the Ofgem price cap, Direct Debit average for England, Scotland and Wales for 1 October to 31 December 2026. Your own tariff may differ. How we calculate.
| Link | ||||||
|---|---|---|---|---|---|---|
| Belaco 3 Bar Halogen Heater | Halogen heater | 1.2kW | 32p | £38.41 | No | Amazon (opens Amazon UK in a new tab) |
| Warmlite 7 Fin Oil Filled Radiator with Timer | Oil-filled radiator | 1.5kW | 39p | £48.01 | Yes | Amazon (opens Amazon UK in a new tab) |
| Dreo Heater 316 Ceramic Heater | Ceramic heater | 1.5kW | 39p | £48.01 | Yes | Amazon (opens Amazon UK in a new tab) |
| Warmlite 2kW Thermo Fan Heater | Fan heater | 2kW | 53p | £64.01 | Yes | Amazon (opens Amazon UK in a new tab) |
| VonHaus 11 Fin 2500W Oil Filled Radiator | Oil-filled radiator | 2.5kW | 66p | £80.01 | Yes | Amazon (opens Amazon UK in a new tab) |
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Which suits which room
- Oil-filled radiators warm up slowly and give off gentle heat for a long time. With a thermostat they suit a bedroom or a room you sit in all evening.
- Fan and ceramic heaters warm a room fast and are good for short bursts, like a home office first thing or a spare room you use for an hour. Their manuals warn against using them near a bath or shower.
- Halogen heaters heat whatever is in front of them rather than the air. They are cheap to buy, but most have no thermostat, so they run at full power for as long as they're on.
How a thermostat changes the cost
Once a room reaches the set temperature, a thermostat switches the heating element off until it cools again. In a reasonably insulated room the element may only be on for part of each hour, so a more powerful oil radiator with a thermostat can cost less over an evening than a smaller halogen heater that never stops.
Heating cost per hour Compare the hourly cost of a heated throw, electric blanket, plug-in heaters, and gas, oil, heat pump and electric central heating.