Half the condensation jobs I am called to have the same root: a family drying a week’s washing indoors. A single full load of wet laundry holds a couple of litres of water, and unless it goes somewhere it ends up on the coldest wall, behind the wardrobe on the external wall, or as black spotting on a bedroom ceiling. I do not write up a clothes airer as a defect, but I do write up the mould it feeds. That is the honest case for a tumble dryer: it moves the water out of the air and into a tank you can pour down the sink.
A heat pump dryer does that for roughly a third of the electricity of an older vented or condenser machine. It works like a small fridge in reverse: warm air passes over the wet clothes, a heat exchanger chills the air to condense the water out, and the same air is reheated and reused. There is no vent hose through a wall and no hot damp air dumped into the room. The price you pay is cycle time, usually two to three hours for a full load, and a higher purchase price than a basic condenser dryer.
I should say plainly where a dryer is the wrong answer. If the house has a ventilation problem, with no extractor in the bathroom, sealed-up trickle vents or a damp cellar, a dryer will treat the symptom while the cause carries on. Read the damp survey cost guide if you are not sure whether you have a moisture problem or just a washing problem, and see the heated clothes airers guide if a dryer is not an option in your home. A dehumidifier, covered in the dehumidifiers guide, is the other half of the answer in houses that stay damp.
The one I’d buy
Bosch Series 6 WQH246D9GB 9kg Heat Pump Tumble Dryer
A nine-kilo Series 6 heat pump dryer with a self-cleaning condenser, Wi-Fi and sensor drying. The self-cleaning condenser matters more than any headline spec, because a clogged heat exchanger is the commonest reason these machines lose efficiency and run long cycles. It is the model I would point a family at first.
Typically £600–£750
Check price on AmazonHow I judge a heat pump tumble dryer
Running cost per load, not the sticker price. A heat pump dryer typically uses around 1.5 to 2.5 kWh a cycle against 4 to 5 kWh for a vented or condenser machine, going by the energy labels. At roughly 25p a kilowatt-hour that is about 40 to 60p a load against £1 to £1.25. A household drying four loads a week saves in the region of £100 a year, so a dearer machine takes a few years to pay back.
Condenser care. The heat exchanger clogs with fluff that gets past the door filter. Self-cleaning designs rinse it with the condensate; cheaper machines need you to pull it out and rinse it under a tap every month or so. Skip that and the cycle times creep upwards.
Where it will live. Heat pump dryers want a room between roughly 5 and 35 degrees. An unheated garage in January is outside that, and a cupboard with no air gap will cook the machine. Check the rear and door-swing clearances before you buy, as I check loft hatches before quoting a boarding job.
Drum size against the real wash. Eight kilos is plenty for two adults; a family with duvets wants nine. Sensor drying, which stops the cycle when the load is dry, protects clothes and saves energy, whereas a timer-only machine will over-dry.
Condensate handling. Every machine collects water in a tank that must be emptied, and most accept a drain hose into a standpipe or washing machine waste. If you have a utility room with a waste, fit the hose and never carry the tank again.
The comparison
| Product | Capacity | Key feature | Typical price | Best for | |
|---|---|---|---|---|---|
| Bosch Series 6 WQH246D9GB | 9kg | Wi-Fi, self-cleaning condenser | ~£680 | Most families | View |
| Miele TWF720 WP | 8kg | EcoSpeed, self-cleaning | ~£950 | Buy-it-once buyers | View |
| Samsung DV90T5240AW | 9kg | Wi-Fi, AI energy mode | ~£650 | App-connected homes | View |
| Hoover H-Dry 500 NDE H9A2TCE-80 | 9kg | Wi-Fi, A++ | ~£420 | Mid-price family dryer | View |
| Beko B5T49231IW | 9kg | A++, sensor drying | ~£370 | Big drum, small budget | View |
| Candy Smart Pro CSOE H9A2DE-80 | 9kg | Wi-Fi, A++ | ~£360 | Budget with Wi-Fi | View |
| Indesit YT M11 82 X UK | 8kg | A++, no app | ~£330 | The cheapest way in | View |
The picks in detail
Bosch Series 6 WQH246D9GB
Best overall — and my top pick above
A nine-kilo Series 6 heat pump dryer from Bosch with Wi-Fi, a self-cleaning condenser and sensor-driven AutoDry programmes that stop a cycle when the load is dry rather than when a timer says so. Owner feedback is consistent that it is quiet for a dryer and that the self-cleaning condenser removes the one maintenance job most people forget. Nothing about it is exciting, which is what you want from a machine that runs for two or three hours at a time in a utility room or kitchen.
For
- Self-cleaning condenser removes the commonest maintenance fault
- Nine kilos and sensor drying suit a family wash
Against
- Priced well above the budget heat pump machines
Typically £600–£750
Check price on AmazonMiele TWF720 WP
Best premium pick — for people who want to buy a dryer once
Miele's T1 EcoSpeed range is the expensive end of the market. The manufacturer designs it around a long service life, with a self-cleaning heat exchanger and a faster cycle than most heat pump rivals. The drum is eight kilos rather than nine, so a family doing big bedding loads may notice. The argument for it is lifetime cost rather than first-year saving: if a cheaper machine lasts eight years and this one lasts fifteen, the sum changes, though that longevity is a manufacturer claim rather than something I can verify.
For
- Self-cleaning heat exchanger and quicker cycles than most
- Designed and marketed around a long service life
Against
- Roughly double the price of the budget picks
- Eight-kilo drum, one kilo under the Bosch
Typically £850–£1,050
Check price on AmazonSamsung DV90T5240AW
Best for app-connected households
A nine-kilo Series 5+ with Wi-Fi, an A+++ energy label and an energy-saving mode that Samsung says trims consumption by up to a fifth. The app tells you when a cycle has finished, which is more useful than it sounds when the dryer lives in a garage or outbuilding. Priced much like the Bosch, so the choice comes down to whether you prefer Samsung's controls and app.
For
- A+++ label with a nine-kilo drum
- Cycle-end notifications by app
Against
- No price advantage over the Bosch
- The energy-saving figure is the manufacturer's own
Typically £600–£700
Check price on AmazonHoover H-Dry 500 NDE H9A2TCE-80
Best mid-price pick
Hoover lists the H-Dry 500 as a nine-kilo A++ heat pump dryer with app connection, and UK retailers have sold it at around the cost of a good condenser dryer. For a household replacing a failed vented or condenser machine, that is the sort of price that makes the switch painless. The compromise against the Bosch is a simpler heat exchanger that needs cleaning by hand.
For
- Nine kilos and app control at a mid-range price
- An easy upgrade from a worn-out condenser dryer
Against
- Condenser is cleaned by hand
- Less of a track record in heat pump dryers than the big European names
Typically £380–£480
Check price on AmazonBeko B5T49231IW
Best for a tight budget with a big drum
A nine-kilo Beko heat pump machine that retailers have been selling for under £400. The big drum for the money is the draw, and it is a sensible machine for a rental or a first home. As with most budget heat pump dryers, the filters and condenser need regular cleaning to hold the energy label, and a hot, cramped room will slow the cycle.
For
- Nine kilos for under £400 at typical prices
- Sensor drying programmes
Against
- Manual condenser cleaning
- Cycles run longer in a warm, cramped room
Typically £340–£420
Check price on AmazonCandy Smart Pro CSOE H9A2DE-80
Best for a budget machine with Wi-Fi
Candy's Smart Pro nine-kilo heat pump dryer sits at the cheaper end and adds Wi-Fi and a cycle-end alert. Owner feedback on budget dryers tends to be that they dry well but are noisier than the premium brands, which matters less in a utility room than in an open-plan kitchen. A fair choice if you want the heat pump running cost without the premium.
For
- Heat pump running costs at a condenser-dryer price
- App connection at a low price
Against
- Budget machines are reported to be louder than the premium brands
Typically £330–£400
Check price on AmazonIndesit YT M11 82 X UK
Best budget pick — the cheapest sensible heat pump dryer
A plain eight-kilo heat pump dryer that has been on sale at around £300 to £400 and was reviewed by Trusted Reviews as cheap to run. No Wi-Fi, no frills and a smaller drum than the nine-kilo machines, but plenty of retailers stock it. If the choice is between this and a vented dryer pushing warm damp air into a cupboard, this wins easily.
For
- The lowest entry price here
- Simple controls with little to go wrong
Against
- Eight-kilo drum
- No app and few extras
Typically £300–£400
Check price on AmazonWhat actually matters — and what doesn’t
A dryer does not cure damp. It stops you drying clothes on radiators and airers, which removes one large source of indoor moisture. It does nothing for a leaking gutter, a bridged damp course or a bathroom with no extractor. If the staining is on an external wall or a chimney breast, get it diagnosed first.
Ventilate the room it sits in. A heat pump dryer gives off heat and a little moisture from the machine itself. In a tight utility room or cupboard, an extractor or an air brick matters; the extractor fans guide covers what to fit. Houses with continuous mechanical ventilation, as in the MVHR installation cost guide, cope better still.
Energy label figures are test figures. The kWh per cycle on the label is for a standard cotton load. Real loads, mixed fabrics and cold rooms push the figure up. Treat the label as a fair way of comparing machines, not a promise of your bill.
What gets pushed that matters less. Dozens of programmes, steam refresh cycles and app control. A nice-to-have in a garage, nothing more. Sensor drying, a clean condenser and a drum large enough for the family wash are what repay you.
Rented homes. Landlords sometimes ban vented dryers because of the hole through the wall; a heat pump dryer needs no vent and is the easier case to make. Check the tenancy before assuming.
Questions I get asked
Are heat pump tumble dryers worth the extra money? For a household drying several loads a week, yes: the running cost is roughly a third of a vented or condenser machine, so the premium over a basic condenser dryer pays back in a few years. For one person drying a load a week, a cheaper machine or an airer is fine.
Do heat pump dryers stop condensation? They stop the moisture from drying clothes reaching the walls, which is the main indoor source in many homes. They do not fix leaks, rising moisture or poor ventilation, and a house with those problems will stay damp. See the rising damp treatment cost guide if you suspect something deeper.
Do they need a vent? No. Water is collected in a tank or piped to a drain, and the air is recycled inside the machine. That is why they suit flats and rented homes where a vent hole is not an option.
How do I look after one? Empty the filter every load, empty the tank or fit a drain hose, and clean the condenser on machines that are not self-cleaning. Leave a gap around the machine and keep the room above freezing.
If damp or mould is the reason you are shopping, a ventilation assessment or a building survey will tell you whether a dryer is the right spend; get in touch if you would like one done properly. For the rest of the home-comfort kit, there are more field-kit guides.
Small print. This guide is general information, not an inspection of your own property, and a tumble dryer is not a substitute for a diagnosis of damp or condensation. Prices are indicative, move constantly and are checked at the time of writing; the linked page always shows the current price. As an Amazon Associate I earn from qualifying purchases.