Tumble Dryer Running Cost UK: Is It Worth Running One in Summer?

That doesn't mean you should never use it. There are plenty of legitimate reasons — rainy days (this is the UK, after all), rental flats with no outdoor space, families who genuinely cannot wait for an airer. But knowing the cost per load puts you in a much stronger position to decide when it's worth it and when it isn't.

These ranges are approximate and based on established guidance from organisations such as the Energy Saving Trust. Your actual consumption may differ — a fuller drum, a heavier cotton load, or an extended programme will all push the figure up.

• Older vented or condenser dryers (typically C-rated or below): As a rough guide, a typical cycle uses somewhere in the region of 4–5 kWh, though the exact figure depends on the drum size, the load weight, and the programme you select. Always check your appliance's manual or energy label for the rated consumption.
• Heat-pump tumble dryers (typically A-rated or above): These are significantly more efficient because they recycle warm air rather than generating fresh heat each time. Consumption per cycle is broadly in the range of 1.5–2.5 kWh, again varying by model and load. They cost more to buy upfront but cost considerably less to run.

Step 1 — Find your kWh per cycle. Check the energy label on your dryer or the specification sheet in the manual. If you cannot find it, the general ranges above are a reasonable starting point, but use your model's actual rating where possible. Step 2 — Find your unit rate. Look at a recent electricity bill. The unit rate is listed in pence per kWh (p/kWh) and varies depending on your tariff and supplier. The Ofgem price cap sets a maximum rate for default tariffs, but fixed-rate deals and variable tariffs can sit above or below it. Your bill is the most accurate source. Step 3 — Multiply. If your dryer uses 4.5 kWh per cycle and your unit rate is, say, 25p/kWh, your cost per load would be around £1.13. If you're on a different tariff, the number changes — which is exactly why we encourage you to plug your own figures into the free tumble dryer cost calculator rather than rely on a generic estimate that may not reflect your bill.

A practical summer scenario: suppose your household does five loads of washing per week. In June, July, and August — roughly 13 weeks — you might reasonably line-dry four out of five loads on most weeks. If each tumble dryer load costs you around £1 (based on your own tariff calculation), switching those four loads per week to line drying saves you roughly £52 over the three summer months. Run the numbers for your own situation using the tumble dryer cost calculator to see what the figure looks like for your appliance and tariff.

A fridge freezer, by contrast, uses electricity continuously but at a low rate. The tumble dryer's high draw is because it is generating heat over a sustained period — that is inherently expensive.

Explore more energy-saving tips and tools at our energy tools hub.

• Only run a full load. Tumble dryers use roughly the same energy whether the drum is half-full or full. A half-load is effectively twice the cost per item dried.
• Spin at high speed first. A longer, faster washing machine spin cycle removes more water mechanically, which takes far less energy than evaporating it thermally in the dryer. Reducing residual moisture before tumble-drying shortens cycle time.
• Use a sensor-dry programme where available. Modern dryers with moisture sensors stop automatically when the load is dry. Timed programmes often run longer than necessary and waste electricity.
• Clean the filter before every load. A clogged lint filter reduces airflow efficiency, making the machine work harder and use more energy.
• Consider a heat-pump upgrade if your dryer is ageing. If your machine is more than ten years old, a replacement heat-pump model could cut your per-load running cost substantially — though this is a significant upfront investment that needs to be weighed carefully against your usage and current tariff.
• Use the tumble dryer selectively in summer. Line-dry on warm, breezy days and reserve the dryer for rainy spells or bulky items like towels and duvets that take very long to air-dry.

Enter your appliance's wattage or kWh per cycle, the number of loads you run each week, and your current unit rate from your electricity bill. The calculator shows your estimated cost per load, per week, per month, and per year — so you can see clearly what summer line-drying could save you. Results are estimates only — always check against your own bill or supplier.

Q: How much electricity does a tumble dryer use per load in the UK? A: It varies considerably by appliance type. Older C-rated vented and condenser dryers typically use around 4–5 kWh per cycle; modern heat-pump dryers (A-rated and above) use roughly 1.5–2.5 kWh. Check your appliance's energy label or manual for the precise figure, then multiply by your unit rate to get the cost per load.

Q: Is it cheaper to line-dry clothes than to use a tumble dryer? A: Line drying on a dry day costs nothing — £0 per load versus whatever your tumble dryer uses at your current electricity rate. In summer, for most UK households with outdoor space, line drying is by far the cheapest option. The tumble dryer remains useful for rainy days, bulky items, or households without outdoor drying space.

Q: What is the cheapest way to dry clothes in the UK? A: Outdoor line drying on a dry, breezy day is the cheapest option — it is free. An indoor airing rack is also free to run (though slower). If you must use an appliance, a heat-pump tumble dryer costs significantly less per load than an older vented or condenser model. Running a full load, using a high spin speed on the washing machine first, and using a sensor-dry programme all help reduce costs further.

Q: How can I reduce my tumble dryer running costs? A: Always dry full loads, spin clothes at a high speed in the washing machine first to remove as much water as possible before tumble-drying, clean the lint filter before every use, and use sensor-dry programmes rather than timed drying. In warmer months, line-drying when weather allows is the single biggest saving most households can make.