UK Indoor Laundry Cost Comparison
There is no single cheapest indoor-drying method for every household. A heated airer can work well for small loads, a compressor dehumidifier can dry clothes while removing moisture from the room, and a heat-pump tumble dryer can be cheaper and much faster when you regularly dry full family-sized loads.
Quick answer: choose a heated airer for small loads when purchase price and quiet operation matter; choose a dehumidifier when condensation or humidity is part of the problem; and use a heat-pump tumble dryer for frequent large loads if you already own one or have space for one. Compare total cost per completed load, not just pence per hour.
Heated airer vs dehumidifier vs tumble dryer: quick comparison
| Method | Typical strength | Main weakness | Best fit |
|---|---|---|---|
| Heated airer | Low hourly wattage, low purchase price, quiet | Slow for large loads; moisture stays in room | Small loads, flats, no tumble dryer |
| Compressor dehumidifier + airer | Removes moisture while helping clothes dry | Drying time varies; fan/compressor noise | Damp-prone homes, indoor laundry, multi-use appliance |
| Heat-pump tumble dryer | Fast, large capacity, efficient per big load | High purchase price and needs space | Families, frequent full loads, bedding and towels |
Free outdoor or unheated air drying remains the cheapest method when weather, space and ventilation allow it. The comparison here is for households that need powered indoor drying.
Which is cheapest for small laundry loads?
For a small load that fits on one heated airer, a rail-style heated airer can be economical. Which? testing says heated airers typically take around four to five hours for a small cotton load, with low hourly power draw compared with a tumble dryer.
At the current 26.32p/kWh electricity rate, a 198W heated airer costs about 5.2p per hour at continuous rated power. Five hours would therefore be roughly 26p. A 300W model would be about 39.5p for five continuous hours.
Small-load winner: heated airer if the entire load fits in one session and the room can be ventilated properly. If the room already has a humidity problem, a dehumidifier may be the better overall choice even if its electricity cost is similar.
See Best Heated Airers UK 2026 for current 198–300W examples.
Which is cheapest for large family loads?
The answer changes when one washing-machine load will not fit on a heated airer. Running the airer two or three times removes much of the advantage of its low hourly power.
Which?’s 2026 indoor-drying comparison found that heat-pump tumble dryers are typically more cost-effective than repeatedly using a heated airer for large loads. They also finish the job much faster and can handle bulky towels, bedding and jeans more easily.
Large-load winner: heat-pump tumble dryer, especially if you already own one. Buying a heated airer solely to replace an efficient heat-pump dryer is not automatically a money-saving move.
Vented and traditional condenser tumble dryers generally use much more electricity than heat-pump models, so do not treat all tumble dryers as equivalent.
Which is best if your home has condensation or damp?
A heated airer speeds evaporation but does not remove the water from the room. If ventilation is poor, that moisture can end up on windows and cold surfaces.
A compressor dehumidifier has a unique advantage: it removes water from the air into a tank while the laundry dries. That can make it the better all-round tool in homes where indoor laundry and high humidity occur together.
Which? reports that efficient dehumidifiers can have hourly running costs in a similar range to heated airers, although the spread between models is wider. Our current dehumidifier examples range from around 136W to 270W for compressor models, which is roughly 3.6p to 7.1p per hour at 26.32p/kWh.
Damp-control winner: compressor dehumidifier + ordinary airer when excess humidity is part of the problem. It is not a substitute for required ventilation or for repairing leaks and building defects.
Use Best Dehumidifiers UK 2026 and How to Stop Condensation on Windows UK for the wider moisture-control decision.
Running-cost examples at current UK electricity prices
The examples below use 26.32p/kWh, the Ofgem average electricity unit rate for Direct Debit standard variable tariffs in England, Scotland and Wales from 1 October to 31 December 2026.
| Example | Power | Approx. cost/hour | Important caveat |
|---|---|---|---|
| Dry:Soon Mini heated airer | 198W | 5.2p | May need 4–5+ hours depending on load and room |
| Minky Wing heated airer | 230W | 6.1p | Cover can improve drying but moisture still enters room |
| 300W heated airer | 300W | 7.9p | Capacity and spacing determine total sessions |
| Meaco Arete Two 10L dehumidifier | 136W at 20°C/60% RH | 3.6p | Extraction and power change with conditions |
| Meaco Arete Two 20L dehumidifier | 207W at 20°C/60% RH | 5.4p | Humidistat may cycle once target humidity is reached |
A tumble dryer’s hourly wattage is a poor comparison because the machine changes heat, fan and compressor behaviour through a cycle. Compare the measured energy or cost of a completed cycle instead.
For any appliance with a known wattage, use the AurumPick Electricity Cost Calculator UK.
Which costs least to buy?
Heated airers are normally the cheapest powered option to buy. Current models range from budget winged frames to premium 3- and 4-tier designs. Dehumidifiers cost more upfront but can also manage condensation and general room humidity. Heat-pump tumble dryers have the highest purchase price but offer the strongest combination of speed and large-load efficiency.
- Lowest upfront cost: heated airer.
- Best multi-purpose purchase: dehumidifier if you also need humidity control.
- Highest upfront cost but strongest large-load convenience: heat-pump tumble dryer.
Which dries clothes fastest?
A tumble dryer is the clear speed winner. Which? has tested tumble dryers that take roughly one to three hours for large loads depending on model and fabric, while heated airers commonly take several hours even for smaller loads.
A dehumidifier does not apply direct heat to each garment, so drying speed depends heavily on room temperature, airflow, humidity, spin speed and how clothes are spaced. It can nevertheless outperform passive indoor air drying because it keeps pulling moisture out of the air.
Do not optimise only for speed. Drying clothes in a badly ventilated room can increase condensation regardless of whether the airer is heated. Use How to Dry Clothes Indoors Without Damp or Mould UK for the room setup.
Which should you choose?
| Your situation | Best starting point | Why |
|---|---|---|
| One or two small loads a week, no tumble dryer | Heated airer | Low purchase price and low hourly power |
| Frequent indoor drying plus condensation | Compressor dehumidifier + airer | Removes moisture as clothes dry |
| Large family loads, bedding and towels | Heat-pump tumble dryer | Faster and usually cheaper per large completed load |
| Cold unheated utility or garage | Desiccant dehumidifier | Better low-temperature moisture removal, though higher power draw |
| Very limited budget | Unheated airer + ventilation | No appliance electricity cost |
The cheapest choice is often the appliance you already own and can use efficiently. Avoid buying a second drying appliance based only on a headline pence-per-hour figure.
FAQs
Is a dehumidifier cheaper than a heated airer?
It can be similar or cheaper per hour, depending on model. Efficient compressor dehumidifiers may draw 130–270W, while many heated airers draw around 200–330W. Total drying time and load capacity determine the real cost.
Is a heated airer cheaper than a heat-pump tumble dryer?
For small loads that fit on one airer, it can be. For repeated large loads, a heat-pump tumble dryer can be cheaper overall because it has more capacity and finishes much faster.
Does a dehumidifier dry clothes faster than a heated airer?
There is no universal answer. A heated airer adds direct heat, while a dehumidifier removes moisture from the air. Room temperature, garment spacing and load size can change the result substantially.
Can I use a heated airer and dehumidifier together?
Yes, if both manufacturers’ placement and safety instructions are followed. The airer speeds evaporation while the dehumidifier removes some of the released moisture from the room.
Which method is best for avoiding mould?
A dehumidifier has the strongest moisture-control advantage, but required ventilation still matters. No drying appliance fixes leaks, failed extraction or building defects.
What is the cheapest possible way to dry clothes indoors?
An unheated airer costs nothing in appliance electricity, but it may take much longer and still needs suitable ventilation. The cheapest practical powered method depends on load size and the appliances you already own.
Explore the full Damp, Drying & Dehumidifiers UK hub for related guides on moisture control, indoor laundry and dehumidifiers.