What does it cost to run? UK appliance running costs
Costed on the Ofgem price cap, 1 October to 31 December 2026 (direct debit, average, VAT removed): 26.32p per kWh. Pick an appliance for typical figures from real UK listings, or put your own in the calculator.
Dehumidifier
4.9p to 5.5p an hour (compressor (10 to 12 litres a day))
Electric blanket
1.1p to 2.6p an hour (single)
Heated airer
5.8p to 7.9p an hour (winged or tiered airer)
Oil-filled radiator
53p to 66p an hour (large (9 to 11 fin))
Electric heater
39p to 53p an hour (fan or ceramic heater)
Work out your own
- Per day
- 26p
- Per week
- £1.84
- Per year
- £95.80
Watts ÷ 1,000 × hours × pence per kWh.
How these figures are worked out
Cost per hour is the power in watts, divided by 1,000, times the unit rate. The rate is the Ofgem price cap, 1 October to 31 December 2026 (direct debit, average, VAT removed). Heaters and radiators are costed at full power; with a thermostat they usually use less once the room is warm. Each appliance page lists the UK listings its typical power comes from.