Heated Airer Running Cost Calculator

Use the wattage printed on your heated airer and the number of hours you normally run it. Covers and room ventilation can affect drying time, but the electricity calculation itself is based on rated power and runtime.

Appliance power (watts)Hours per sessionSessions per weekElectricity rate (pence/kWh)

Energy per session1.800 kWh

Cost per session£0.47

Weekly£1.90

Monthly estimate£8.21

Annual estimate£98.54

Formula: watts ÷ 1,000 × hours × electricity rate. This is an estimate; cycling appliances may draw less than their full rated power for part of the session.

What the result means

Different heated airers have very different power ratings.
Longer drying sessions can cost more even when the appliance wattage is low.
Use your own tariff rate for the most relevant estimate.

Related guides

Read more about the topics covered by this calculator:

Heated airer running cost explained

How this calculator works

Formula

Watts ÷ 1,000 × hours × electricity rate (pence/kWh) = cost in pence

Inputs

Heated airer power in watts (from the label)
Hours per session
Sessions per week
Electricity unit rate in pence per kWh

Outputs

Energy per session (kWh)
Cost per session
Weekly cost
Monthly estimate
Annual estimate

Assumptions

Rated wattage is used for the full session duration.
Heated airers typically run at constant power without a thermostat cycle.
Covers reduce drying time but do not change the electricity calculation.

Example calculation

A 300W heated airer running 6 hours at 26.32p/kWh: 300 ÷ 1,000 × 6 × 26.32 = 47.4p per session.

Tariff source

Default rates are sourced from Ofgem. Users can override the rate.

Limitations

Some heated airers have multiple heat settings; use the wattage for your chosen setting.
Drying time depends on room temperature, humidity and whether a cover is used.
This calculator estimates electricity cost only.