Heat Pump Tumble Dryer Running Costs Calculator
Enter your electricity price and how often you dry laundry to see your heat pump dryer's real running cost, and compare it with a vented or condenser dryer.
Calculator Inputs
Breakdown
| Step | Calculation | Result |
|---|---|---|
| Cost per cycle | Enter kWh and electricity price above | - |
| Cost per week | Cycles per week × cost per cycle | - |
| Cost per year | Cost per week × 52 | - |
| Comparison dryer (year) | Cycles per week × 52 × comparison kWh × price | - |
Scenario Analysis
| Scenario | Annual Cost | Change |
|---|---|---|
| Your current estimate | - | - |
| Electricity price +10% | - | - |
| Electricity price -10% | - | - |
| +2 cycles per week | - | - |
How Much Does A Heat Pump Tumble Dryer Cost To Run?
A heat pump tumble dryer typically uses around 1.9 kWh for a full-load cotton cycle. At the Ofgem Direct Debit price cap average of 26.11p/kWh, that is roughly 50p per cycle, or about £103 a year at 4 cycles a week. Your actual cost depends on your specific appliance's energy use and your own electricity tariff.
How Does A Heat Pump Dryer Save Energy?
A heat pump dryer recycles and reuses hot air within a closed loop, extracting moisture and reheating the air rather than constantly generating fresh heat with a resistive element. This is what gives it roughly half the energy use, or less, compared with a vented or standard condenser dryer, which both rely on a heating element the whole cycle.
Heat Pump vs Vented vs Condenser Dryers
Vented dryers expel warm, moist air outside through a hose or vent. Standard condenser dryers keep the moist air inside but condense it into a water tank, using the same resistive-element heating as a vented dryer. Heat pump dryers use a genuinely different mechanism, recycling heat through a closed-loop heat pump system, which is the source of their lower running cost.
Common Mistakes When Estimating Dryer Running Costs
Common mistakes include using a generic "average dryer" cost figure instead of checking the specific model's energy label, forgetting that condenser dryers cost about the same to run as vented dryers (not less), and using an out-of-date electricity price when the Ofgem cap changes roughly every three months.
Making The Most Of A Heat Pump Dryer
Cleaning the lint filter and heat exchanger regularly keeps a heat pump dryer running efficiently, since a blocked filter or exchanger can extend cycle times and increase energy use. Running fuller (but not overloaded) loads and using the appropriate programme for the fabric type also reduces the number of cycles needed overall.
Important Considerations
This calculator estimates running (energy) costs only; it does not account for the higher upfront purchase price of heat pump dryers, potential repair costs, or the time value of a longer cycle length. Always check your specific appliance's stated energy consumption and your own tariff's unit rate for the most accurate figure.
Frequently Asked Questions
How much does it cost to run a heat pump tumble dryer?
At the Ofgem Direct Debit price cap average of 26.11p/kWh, a typical full-load cotton cycle using around 1.9 kWh costs about 50p. At 4 cycles a week, that works out at roughly £103 a year, though your actual cost depends on your appliance's energy use and your own electricity tariff.
How much cheaper is a heat pump dryer than a vented or condenser dryer?
Heat pump dryers typically use less than half the energy of a vented or standard condenser dryer per cycle (around 1.9 kWh versus around 4.0 kWh), because they recycle and reuse hot air rather than constantly generating fresh heat with a resistive element. At typical usage this can mean well over £100 a year in savings, though the exact figure depends on your frequency of use and tariff.
Are heat pump and condenser dryers the same thing?
No. A standard condenser dryer uses a resistive heating element (like a vented dryer) and simply condenses the moist air into a water tank instead of venting it outside, so its energy use is broadly similar to a vented dryer. A heat pump dryer uses a genuinely different heat-pump mechanism to recycle heat, which is what gives it the substantial energy saving.
Why does my heat pump dryer take longer to run a cycle?
Heat pump dryers typically run at a lower temperature and recycle air through the heat pump system, which usually makes a full cycle longer (often 2.5-3.5 hours for a full cotton load) than a vented or condenser dryer. The trade-off is lower energy use per cycle, not a faster cycle.
Does the electricity price used here match my own bill?
Only if you are on the Ofgem Direct Debit price cap default tariff at the current rate. Prices vary by supplier, tariff type, region, and payment method, and the price cap itself changes roughly every three months, so replace the default with your own unit rate for an accurate result.
Why is the comparison dryer figure the same for vented and condenser?
Both vented and standard condenser dryers heat air with a resistive element in essentially the same way; the difference between them is how they get rid of the moisture, not how the heat is generated. That is why this calculator uses one comparison figure for both dryer types.
How many cycles a week is normal for a UK household?
Usage varies widely by household size, but a commonly cited estimate is around 3-5 cycles a week for an average family household. Larger households or those without outdoor drying space may run considerably more.
Does this calculator account for standing charges?
No. This calculator estimates only the additional energy cost of running the dryer itself; your electricity standing charge is a fixed daily cost you pay regardless of dryer usage, so it is not part of a dryer-specific running cost comparison.
Is a heat pump dryer worth the higher purchase price?
That depends on how often you dry laundry and how long you plan to keep the appliance. Heat pump dryers typically cost more to buy but can save well over £100 a year in energy for a moderate-use household, so the extra purchase cost is often recovered within a few years of typical use.
Can I use this calculator if I don't know my dryer's exact kWh per cycle?
Yes. The default 1.9 kWh figure is a reasonable typical estimate for a full-load cotton cycle, but for a more accurate result, check your appliance's EU/UK energy label or manual.
Do smaller loads use less energy?
Generally yes; a smaller or lighter load typically uses somewhat less energy than a full-load cotton cycle, though the reduction is not always proportional to load size, since some fixed energy is used regardless of load.
Does the price cap changing affect my results?
Yes. The Ofgem price cap changes roughly every three months, and this calculator's default reflects the rate in place for July-September 2026. Update the electricity price field with the current rate for the most accurate ongoing estimate.
What's the difference between cost per cycle and cost per month here?
Cost per cycle is a single wash-and-dry cycle's energy cost. Cost per month multiplies your weekly usage by 52 weeks and divides by 12, giving an average monthly figure rather than assuming exactly 4 weeks in every month.
Why does the scenario table show a +10%/-10% electricity price?
Electricity prices change periodically, and showing how a 10% price move affects your annual cost helps you understand how sensitive your running cost is to future tariff changes, without needing to re-enter figures manually.
Sources
- Ofgem – Energy price cap unit rates and standing charges
- Energy Stats UK – Heat pump tumble dryer cost
- InTheWash – Heat pump vs condenser dryer running costs
Last updated: 2026-07-25. This page gives an estimate only and is not a substitute for your actual energy bill.