Heat pump vs condenser tumble dryer: the running-cost maths

Tumble dryers are the appliance where the purchase price and the running cost pull hardest in opposite directions. A condenser dryer might cost £250 and £100 a year to run. A heat pump dryer might cost £500 and £40 a year. The break-even is the whole decision.

How each works

A vented dryer blows hot wet air out through a hose to outside. A condenser dryer cools the air to collect the water in a tank, then reheats it. A heat pump dryer does the same but recycles the heat instead of generating it fresh every cycle, which is why it uses roughly half the electricity.

The trade-offs

Heat pump dryers run cooler and slower. A full load that takes 90 minutes in a condenser takes two to three hours in a heat pump. Clothes come out gentler; the machine is kinder to fabrics. The lower temperature is why they're efficient and also why they're slow.

They also cost more to repair if the pump fails outside warranty, so a longer guarantee matters more here than on a condenser.

The sum

At 2026 electricity prices, a household drying four loads a week saves roughly £50 to £70 a year with a heat pump. Against a £200 to £250 price premium, that's a three to five year payback, inside the machine's life. Two loads a week and it's seven to ten years, which is marginal. If you dry rarely, buy the condenser.

Which to watch

Heat pump dryers discount hard in the January sales and around Black Friday because retailers hold stock of the previous year's models. Bosch, AEG and Beko heat pump models regularly drop £100 or more. Watch a specific model and buy on the dip; the price history on the deal page will show you what "dip" means for that machine.