Last reviewed: June 2026
TL;DR- Heat pump dryers are the cheapest to run at approximately 25p to 37p per load, using 1.0 to 1.5 kWh per cycle at the Q3 2026 Ofgem unit rate of 24.50p per kWh.
- Condenser dryers cost approximately 49p to 61p per load using 2.0 to 2.5 kWh per cycle.
- Vented dryers cost approximately 61p to 86p per load using 2.5 to 3.5 kWh per cycle -- the most expensive type to run.
- Running costs are calculated using the Ofgem price cap unit rate which changes quarterly.
Tumble Dryer Running Cost by Type
The running cost of a tumble dryer depends primarily on the type of dryer (heat pump, condenser or vented), the energy efficiency rating of the specific model, the load size, drying temperature selected and the cycle used. The figures below are calculated using the Ofgem price cap electricity unit rate of approximately 24.50p per kWh, which applies from July 2026 for a typical direct debit customer in England, Scotland and Wales. Actual costs vary by supplier tariff and household usage pattern.
| Dryer Type | kWh per Cycle | Cost per Load | Annual Cost (5x/wk) |
|---|---|---|---|
| Heat pump (A-rated) | 1.0 to 1.5 | 25p to 37p | approx. 65 to 96 |
| Condenser (B/C-rated) | 2.0 to 2.5 | 49p to 61p | approx. 127 to 159 |
| Vented (C/D-rated) | 2.5 to 3.5 | 61p to 86p | approx. 159 to 224 |
Calculated at 24.50p per kWh (Ofgem price cap Q3 2026, England, Scotland and Wales, direct debit). Actual costs vary by tariff and usage.
Heat Pump Dryers
Heat pump dryers are the most energy-efficient type available. They use a closed-loop refrigerant system that extracts heat from the exhaust air and recirculates it back into the drum, rather than expelling it to the room. This approach requires significantly less electrical energy to generate and maintain the heat needed to dry a load compared to conventional resistance heating designs. A-rated heat pump dryers typically consume 1.0 to 1.5 kWh per cycle, compared to 2.5 to 3.5 kWh for a comparable vented dryer.
The trade-offs are a higher purchase price (typically 200 to 400 pounds more than a comparable condenser model), longer drying cycles (typically 30 to 60 minutes more per load), and a need to clean the heat exchanger filter periodically in addition to the standard lint filter. Over the lifetime of the appliance, the energy saving for a household drying five loads per week typically offsets the higher purchase cost within three to five years at current electricity prices.
Heat pump dryers operate at lower temperatures than conventional resistance-heated dryers, which is gentler on fabrics and reduces the risk of heat damage and shrinkage for temperature-sensitive items. They do not require an external vent and collect extracted moisture in a removable reservoir in the same way as condenser dryers.
Condenser Dryers
Condenser dryers extract moisture from the warm air leaving the drum by passing it over a cold condenser surface, causing water vapour to condense into liquid water that is collected in a removable reservoir. They do not require an external vent and can be installed in any room with adequate ventilation, which makes them the most common type in UK homes where a through-wall vent is not practical. Condenser dryers typically consume 2.0 to 2.5 kWh per cycle and cost approximately 49p to 61p per load at the current Ofgem rate.
The reservoir must be emptied after each cycle, or more frequently for larger or wetter loads. Some models can be plumbed into a drain to eliminate the need to empty the reservoir manually. The condenser unit must be cleaned regularly as lint accumulation on the condenser surface reduces heat exchange efficiency, increasing drying time and energy consumption per load.
Vented Dryers
Vented dryers expel warm, moist air from the drum through a flexible hose to an external vent or window opening. They are the simplest mechanical design, typically the cheapest to purchase and generally faster at drying a given load than condenser or heat pump models. However, they are the most expensive to run because they draw in cool ambient air with each cycle and must reheat it from ambient temperature, without recapturing any heat from the expelled air.
Vented dryers require access to an external wall or window that the vent hose can exit through. They cannot be used in rooms without external wall access and are not suitable for high-rise flats where an external vent outlet cannot be safely installed. Running a vented dryer without a properly terminated external vent causes moisture to accumulate in the room, creating conditions for condensation and damp.
How to Reduce Tumble Dryer Running Costs
Running costs can be reduced through several practical measures. Spinning laundry at the highest spin speed the fabric care labels allow before transferring to the dryer significantly reduces residual moisture and drying time. A spin speed of 1,400 rpm compared to 800 rpm can reduce residual moisture content by 15 to 20 percent, directly reducing dryer cycle length and energy consumption per load.
Drying full loads rather than partial loads is more energy-efficient per item dried, as the energy required to heat the drum and maintain temperature is largely fixed regardless of load size within the rated capacity. Cleaning the lint filter after every cycle is important for maintaining airflow -- a blocked lint filter forces the dryer to work harder and extends cycle time. For condenser and heat pump models, cleaning the condenser unit or heat exchanger according to the manufacturer schedule is equally important for maintaining efficiency over time.
Using lower heat settings or sensor-drying modes for synthetic fabrics and lightweight garments reduces energy consumption. Sensor drying detects residual moisture in the drum and ends the cycle automatically when the laundry reaches the selected dryness level, preventing over-drying and unnecessary energy use beyond that point.
When a tumble dryer develops a fault -- such as failing to heat, taking significantly longer than usual to complete a cycle, or making unusual mechanical noises -- repair is often more cost-effective than replacement, particularly for heat pump models where the purchase cost is higher. Domestic & General offers appliance cover plans that include call-out, parts and labour for mechanical and electrical faults after the manufacturer warranty expires, covering tumble dryers as part of their home appliance protection range.
Frequently Asked Questions
How much does it cost to run a tumble dryer per load in the UK?
At the Q3 2026 Ofgem price cap rate of approximately 24.50p per kWh, a heat pump dryer costs around 25p to 37p per load, a condenser dryer around 49p to 61p per load, and a vented dryer around 61p to 86p per load. Annual running costs for a household using a dryer five times per week range from approximately 65 pounds for an A-rated heat pump model to over 220 pounds for a vented model.
Are heat pump dryers worth the extra cost?
For most households using a tumble dryer regularly, a heat pump dryer pays back its higher purchase price through energy savings within three to five years. The payback period depends on usage frequency, the price premium of the specific model and the prevailing electricity unit rate. At current UK electricity prices the annual saving compared to a vented dryer is approximately 100 to 130 pounds for a household drying five loads per week.
How can I check how much electricity my dryer uses?
The energy consumption per cycle is stated on the EU energy label and in the product specification, expressed in kWh per standardised test cycle. A smart plug with energy monitoring can measure actual consumption across a full cycle in real-world use. The label figure may differ from actual usage depending on load size, fabric type, cycle selection and the residual moisture content of the laundry transferred from the washing machine.
Why is my tumble dryer taking longer to dry clothes?
The most common causes are a blocked lint filter restricting airflow, a blocked or dirty condenser unit or heat exchanger on condenser and heat pump models, a kinked or blocked vent hose on vented models, overloading the drum, a fault with the heating element or heat pump system, or a worn drum belt or motor reducing rotation. A dryer taking significantly longer than usual is also consuming more electricity per load than it should, increasing running costs.
What is the cheapest tumble dryer to run?
A-rated heat pump dryers are the cheapest to run, consuming 1.0 to 1.5 kWh per cycle compared to 2.5 to 3.5 kWh for a vented dryer of equivalent capacity. At current UK electricity prices the difference is approximately 36p to 49p per load, equivalent to approximately 95 to 127 pounds per year for a household drying five loads per week.
Sources
- Ofgem -- Energy Price Cap
- Energy Saving Trust -- Home Appliances
- Department for Energy Security and Net Zero
Tumble Dryer Energy Labels and Efficiency Ratings
Tumble dryers sold in the UK since March 2021 carry the revised EU energy label on a scale from A to G, replacing the old A+, A++ and A+++ rating system. The rescaling was introduced because almost all appliances had clustered at the top of the old scale, making it difficult for consumers to differentiate between products. Under the new scale, the most efficient heat pump dryers typically achieve an A or B rating. Condenser dryers are typically rated C or D and vented dryers typically D or E.
The energy consumption figure on the label is expressed in kilowatt-hours per cycle (kWh/cycle) based on a standardised test using a full rated load at a cotton programme with a starting moisture content of 60 percent. This standardised test allows direct comparison between models, but actual real-world consumption will vary depending on the load composition, selected programme, starting moisture content of the laundry and ambient room temperature.
The label also shows the rated capacity in kilograms, the programme duration for the standardised test, the noise level in decibels and, for condenser dryers, the condensation efficiency rating. When comparing models, the kWh per cycle figure combined with typical weekly usage allows the annual running cost to be estimated with reasonable accuracy using the current Ofgem unit rate.
Older tumble dryers that predate the current labelling system may have significantly higher energy consumption than their rated efficiency under the old system implies. A tumble dryer more than eight to ten years old is likely to have higher energy consumption per cycle than a current mid-range model of the same type, even if it was rated A+ under the old system at the time of purchase. The technology improvements in heat pump dryers in particular have been substantial over the past decade.
