Topic
Running costs
Electricity cost is watts times hours divided by 1,000, times your unit rate. Use the rate in pence per kWh from your own bill rather than an average figure.
- Formula
- W x h ÷ 1,000 x p/kWh
A dehumidifier, a heated airer and a tumble dryer each turn electricity into dry washing at a different rate. Enter each one's wattage and hours, or a tumble dryer's kWh per cycle from its energy label, in the running-cost calculator to see them side by side.
Unit rates differ by supplier, tariff and region, and change over time, so this site never assumes one.
Guides on this topic
- How long should you run a dehumidifier each day?How long to run a dehumidifier: run to a humidity target, not a clock. Typical hours by season, what that means in kWh, and whether it can stay on.How-to
- Heated airer vs tumble dryer: time and kWh per loadHeated airer vs tumble dryer compared on drying hours, kWh per load from stated wattages and the moisture each one leaves in your room.Comparison
- How much does a heated airer cost to run?Work out heated airer running costs in kWh from its watts and hours, with a table for typical airers, then price it at your own unit rate.Guide
- Dehumidifier vs tumble dryer for winter laundryDehumidifier and airer vs a heat pump or condenser tumble dryer for winter washing: kWh per load, drying time, space, fabric care and damp.Comparison
- How much does a dehumidifier cost to run?Dehumidifier running costs in kWh for compressor and desiccant types by stated wattage, per day and per month, so you can price them at your own unit rate.Guide
Buying guides on this topic
- Best dehumidifiers under £300Branded dehumidifiers under the premium tier compared on stated litres per day, tank size, room size and laundry modes from each listing.Buying guide
- Best low energy dehumidifiersLow energy dehumidifiers ranked by rated watts divided by stated litres per day, with energy saving modes and tank sizes compared.Buying guide