From October onwards, the washing line stops being an option in Ireland. The rain does not let up long enough, the days are too short, and anything left out overnight comes in damper than it went out. So the laundry moves indoors, and that is where the trouble starts.
A single load of washing holds roughly two litres of water. Dry it on an airer in a closed room and every drop of that ends up in the air, then on your windows, then in the corners behind the wardrobe. This guide covers every practical way to dry clothes through an Irish winter, from a plain airer to a heat pump dryer, and how to stop the damp and mould that indoor drying causes.
Jump to What You Need:
1. Why Drying Clothes Indoors Causes Damp and Mould
2. Best Clothes Airers for Drying Indoors
3. Electric Heated Clothes Airers
4. Airer Plus Dehumidifier: The Combination That Works
5. Tumble Dryers and Heat Pump Dryers
6. How to Keep Your Home Mould Free
1. Why Drying Clothes Indoors Causes Damp and Mould
Water does not disappear when clothes dry. It evaporates, and it stays in the room. A typical 8 kg wash comes out of the machine holding about two litres of water even after a fast spin, and all of it goes into the air of whatever room you put the airer in.
Warm air can hold a lot of moisture. Cold surfaces cannot. So the moisture travels around the house until it meets the coldest thing in it, usually a window pane, an outside wall, or the back of a wardrobe pushed against one, and it condenses back into liquid there. That is why condensation on windows is worst in bedrooms on winter mornings, and why black mould on walls tends to appear in the same few spots year after year.
The three things that make it worse: drying in a small room with the door closed, drying in an unheated room where surfaces are cold, and drying with no ventilation at all. Any one of those turns two litres of water into a damp problem. All three together is how a bedroom wall goes black over a single winter.
The persistent musty smell that comes with it is not the damp itself, it is mould and bacteria growing in fabric, plaster and behind skirting. Airing the room helps briefly, but the smell comes back until the moisture is actually removed rather than moved around. That is the difference between opening a window and running a dehumidifier: one dilutes the moisture, the other takes it out of the house.
Everything below is a way of dealing with that two litres. The appliances differ in how fast they work, what they cost to run, and how much space they need, but the question they all answer is the same one.
2. Best Clothes Airers for Drying Indoors
Before you spend anything on electricity, there is the plain clothes airer. Almost every Irish home already owns one, and it costs nothing at all to run. Hung properly in a room with some air moving through it, an airer will dry a full wash overnight without adding a cent to the bill.
The catch is the one running through this whole guide: an airer does not remove a drop of water, it just hands it to the room. That is why the airer and dehumidifier pairing further down works so well, and why an airer on its own belongs in a room you can ventilate rather than a closed bedroom.
If there is genuinely no floor to spare, an over-bath model such as the Black & Decker Over Bath Extendable Airer sits across the tub and uses none at all, though at 5.6 metres it is a small-load option rather than a full wash. Otherwise, choosing between airers comes down to three things, and none of them is the price.
Drying metres. This is the total length of bar you get, and it tells you how much washing fits. Roughly 15 to 16 metres takes one full machine load, 20 metres and up takes two. Buying too small is the most common mistake, because a crammed airer dries slowly and leaves clothes smelling stale.
Where it goes, and where it lives after. A winged airer gives the most hanging length for the smallest floor footprint. A tall tower airer stacks the same drying space vertically, which suits a narrow utility or a corner. An over-bath airer uses no floor space at all. Check the folded depth too: the good ones drop to around 50 mm and slide behind a door.
Long items. Sheets, towels and trousers need either adjustable wings or independently folding levels, otherwise they trail on the floor and stay damp at the bottom.
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| Drying space | 16 metres | 20 metres | 23 metres |
| Holds | A full machine load, capacity not stated | Two full machine loads, up to 12.5 kg | More than two full machine loads |
| Design | Winged with a lower rack for smaller items, anti-slip legs, fully collapsible | Winged with adjustable wing height, 6 hanger hooks, fold-out platform for flat drying, child lock and transport lock | Vertical tower, 3 independently folding levels, 4 wheels, wide wire spacing, folds halfway for one-sided use |
| Long items | Wings take longer garments | Yes, wing height adjusts for sheets and towels | Yes, drape across multiple levels |
| Folded size and weight | Folds flat, dimensions not stated | Folds to 50 mm wide, 4.6 kg | Folds to 50 mm deep, 4.7 kg, 790 x 590 x 1260 mm open |
| Best for | The straightforward everyday airer, and the most drying metres for the least money | Families doing two loads at a time who want bedding to dry properly | The biggest capacity on the smallest footprint, and the only one you can wheel between rooms |
Specifications are a general guide and can change. Check each product page for the latest details.
If none of those three is quite the shape you need, the wider range covers concertina clothes horses that fold to almost nothing, tall three tier airers for narrow spaces, small airers for a single wash, and sturdier frames rated for outdoor use on a dry day.
3. Electric Heated Clothes Airers
A heated clothes airer is an ordinary drying rack with gently warmed bars. It will not dry a load as fast as a tumble dryer, but it changes the maths on running cost dramatically, and for a lot of Irish homes it is the single most sensible upgrade from a plain airer.
The numbers tell the story. A heated airer draws around 220 to 230 watts, which is roughly the same as a couple of old-style light bulbs, and it holds that steadily rather than cycling a heating element and a motor the way a dryer does. Left running for a few hours it will take a full wash from damp to dry, especially overnight. Compared with a tumble dryer it is slower, and compared with an unheated airer it is far faster and far less likely to leave clothes smelling stale.
Important: a heated airer still puts every drop of that water into your room. It dries clothes faster, so the moisture is released faster. Used on its own in a closed bedroom it can actually make condensation worse than a cold airer would. Pair it with a dehumidifier or with a genuinely well ventilated room, and cover it if you want to speed things up further.
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| Drying space | 12 metres across 20 bars | 11.5 metres across 18 bars |
| Load capacity | Not stated | 10 kg, suits a full weekly wash |
| Power draw | 230 W max | 220 W |
| Design | Winged and freestanding, aluminium frame, non-slip feet, constant 45 to 55 degrees, folds flat to 6 cm deep | Two heated fold-out wings that can be set fully open or half open, aluminium frame, folds flat, 3.5 kg so it moves room to room easily |
| Open size | 147 x 54 x 94 cm | 94 x 50 x 74 cm |
Specifications are a general guide and can change. Check each product page for the latest details.
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4. Airer Plus Dehumidifier: The Combination That Works
This is the setup most people overlook, and it is the one we would point almost anyone towards first. Put a normal clothes airer in a room, close the door, and run a dehumidifier beside it. Nothing else.
Why the Pairing Works So Well
Clothes dry because moisture moves from wet fabric into drier air. A dehumidifier keeps pulling water out of that air, so the air beside your washing stays thirsty and the fabric keeps giving up moisture. Closing the door is not a mistake here, it is the point: you want the machine working on one small volume of air rather than the whole house.
The result is a load dried in a handful of hours, at a fraction of a tumble dryer's power draw, with the two litres of water ending up in a tank you pour down the sink instead of on your bedroom window. Most modern units have a dedicated clothes drying or laundry mode that runs the fan harder and skips the humidity target, which is exactly what you want for this job.
Stopping Condensation and Mould for Good
The same machine solves the underlying problem the rest of the year. Mould needs moisture to grow, so keeping indoor humidity in the 45 to 55 percent range makes walls, window reveals and wardrobe backs inhospitable to it. A dehumidifier with a humidity setting will hold that level on its own and switch itself off when it gets there.
It is worth being clear about what it will and will not do. A dehumidifier stops new mould forming and stops condensation running down your windows. It does not remove mould that has already taken hold, that still needs cleaning off, and it will not fix a leak, a failed damp course or missing insulation. If your damp is coming through a wall rather than out of the air, it is a building problem first.
What Size Dehumidifier Do I Need?
One damp room, or a one to two bed apartment: a 10 to 12 litre model is plenty. These are compact, light enough to carry between rooms, and quiet enough for a bedroom.
A three bed house with laundry drying indoors: go for 16 to 20 litres. The extra capacity matters less for how dry it gets the room and more for how quickly, which is what you notice when you are drying washing several times a week.
A large or persistently damp house: 20 litres and up, and look for continuous drainage so you can run a hose to a drain rather than emptying a tank twice a day. The litre figure is moisture removed per day under test conditions, not tank size, so check both.
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| Moisture removed per day | 10 litres | 20 litres | 12 litres | 16 litres |
| Clothes drying mode | No, simple on and off only | Yes, dryer function | Yes, clothes drying function | Yes, dedicated clothes drying function |
| Humidity control | No humidistat | Yes, LED display, humidity setting and 24 hour timer | 3 fan speeds, auto shut-off | Hygrometer, thermometer, timer, anti-frost device |
| Room size | Single rooms | Whole-house capacity | Up to 55 cubic metres | Up to 75 cubic metres |
| Tank and drainage | 2.8 litre anti-bacterial tank, dual drainage, hose not included | 3 litre anti-bacterial tank, dual drainage, hose not included | 2.3 litre tank, visible water level | 2.3 litre tank, continuous drainage with pipe included |
| Filtration | Standard | Standard | Washable filter, asthma and allergy friendly certified | Three-action system: dust, allergen and active carbon filters |
| Noise | Quiet running, level not stated | 2 fan speeds, level not stated | 40 dBA | 40 dBA |
| Best for | One problem room, or a first dehumidifier on a tight budget | The most moisture removed of the four, with timer and humidity control | Bedrooms and quiet rooms where a filtered, low noise unit matters | Drying laundry regularly in a larger house, with continuous drainage |
Specifications are a general guide and can change. Check each product page for the latest details.
You will need an airer to go with it. Any ordinary clothes airer works, and it does not need to be the expensive one. What matters is that it holds the whole load without crowding, because packed washing dries slowly whatever the dehumidifier is doing. Compare the Airers in Section 2 for the drying metres and footprint of each.
5. Tumble Dryers and Heat Pump Dryers
A tumble dryer is the most direct answer, because the water leaves the machine rather than the room. It is also the fastest: a full load goes from soaking to folded in a couple of hours with no drying rack taking over the sitting room.
There are three types, and the difference between them is entirely about where the moisture goes and what that costs you.
Vented: blows warm, wet air out through a hose to an outside wall or an open window. Cheapest to buy, quickest to dry, but it needs a permanent hole in the wall or a window left ajar, which works against you in winter.
Condenser: cools the wet air and collects the water in a tank you empty, or plumbs it to a drain. No venting needed, so it can sit anywhere, but it uses a lot more electricity than a heat pump and warms the room while it runs.
Heat pump: recycles the same warm air instead of heating fresh air from cold, so it uses roughly half the electricity of a condenser. It runs at a lower temperature, which is gentler on clothes, and takes longer per cycle. Over the life of the machine it is comfortably the cheapest of the three to run, which is why it is what we stock.
All three of our current picks are heat pump models. Browse the full range in Tumble Dryers, or go straight to the Heat Pump selection.
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| Drying capacity | 8 kg | 10 kg | 9 kg |
| Type | Heat pump | Heat pump | Heat pump |
| Energy rating as listed | A++ (older label) | A+++ (older label) | C (current label) |
| Stand-out features | Kilo Detector load sensing, Super Easy Iron, Woolmark wool programme, higher door opening, 15 programmes | WiFi via the ConnectLife app, Allergy Care cycle, 10 minute refresh with ion treatment, Auto Dry sensing, R290 refrigerant | Self-cleaning condenser, Auto Dry sensing, Super Quick 40, bed linen programme with reversing drum, half load option |
| Best for | Couples and smaller households wanting heat pump running costs without the outlay | Busy family homes with big weekly loads and a preference for app control | Anyone buying once and keeping it, with the longest cover of the three |
Specifications are a general guide and can change. Check each product page for the latest details.
One thing to know about energy labels: the EU rescaled them in 2021, so an A++ from the old label and a C from the current one are not measuring against the same yardstick. Compare the annual kWh figure on each product page rather than the letter if running cost is your deciding factor.
6. How to Keep Your Home Mould Free
Whichever way you dry your clothes, keeping a house mould free is a routine rather than a purchase. The appliances above deal with the two litres of water. These habits deal with everything else, and together they are what stop the same corner going black every January.
The routine that actually works:
Aim to hold indoor humidity between 45 and 55 percent, which is the range mould cannot get going in. Run the extractor during and for a while after showers and cooking, and shut the door of that room so the moisture leaves through the fan rather than drifting into the hall. Wipe condensation off window sills in the morning instead of letting it sit. Pull furniture a few centimetres off outside walls so air can move behind it, and do not push a wardrobe flat against the coldest wall in the house. Clean any visible mould off hard surfaces as soon as you see it, and dry your washing in a room you can either ventilate or dehumidify.
One honest limit worth stating plainly: none of this fixes a leak, a failed damp course or missing insulation. If damp keeps returning in one particular spot no matter what you do, the cause is in the building rather than in the air, and that is a job for someone who can look at the wall.
Dehumidifier or Air Purifier: Which One Do You Need?
These two get mixed up constantly, and they are not alternatives. They do completely different jobs, and if you have a damp problem caused by drying clothes indoors, only one of them will fix it.
A dehumidifier removes water from the air. That is what dries your clothes faster, clears your windows, and stops mould having the conditions it needs to grow. If your problem is condensation, damp, a musty smell or laundry that takes days to dry, this is the machine you want.
An air purifier removes particles from the air. Dust, pollen, pet dander, cooking smells and, on units with a sealed HEPA filter, mould spores already floating around the room. It will not lower the humidity by a single percent and it will not dry your washing. What it does is clean up what the damp has already released into the air.
So the honest answer for most people is: get the dehumidifier first, because it treats the cause. Add an air purifier if someone in the house has allergies or asthma, if there are pets, or if a room has had a mould problem and you want the spores out of the air while you deal with the walls. Running both in a room where laundry dries is a genuinely good combination.
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| Room coverage | Up to 23 square metres at one air change per hour | Around 80 square metres | Up to 100 square metres |
| Filtration | Four layers: washable pre-filter, pet particle barrier, activated carbon, NanoSeal HEPA. Captures 99.97% down to 0.1 to 0.2 microns | Triple layer: primary filter, HEPA, odour cartridge. Lab verified 99% ammonia removal | Fully sealed system, 99.97% of particles down to 0.3 microns including mould spores, plus activated carbon for gases and odours |
| Noise | 58 dB at maximum, dimmable display for overnight use | 31.9 dBA in sleep mode, 65.4 dBA in turbo | 24 dB in sleep mode, 41 dB at maximum |
| Filter life | Up to 5 years on the HEPA filter | App gives filter status reminders | Engineered for up to 5 years |
| Smart features | Clean Sense IQ auto mode, LED air quality display | App and voice control, auto mode, air quality light strip, 360 degree hair capture | MyDyson app and voice control, particle sensing, 90 degree oscillation |
| Best for | A bedroom, nursery or home office, with the lowest maintenance of the three | Homes with pets, where hair and odours are the main problem | Large or open-plan rooms, and the quietest option for a bedroom |
Specifications are a general guide and can change. Check each product page for the latest details.
Which One Should You Actually Buy?
If you want the fastest results and have the space: a heat pump tumble dryer. The water leaves the house, nothing goes on your walls, and a load is done in a couple of hours.
If you want to spend nothing on running costs: a properly sized clothes airer in a room you can ventilate, and accept that it takes longer.
If running cost is what matters most: a heated airer plus a dehumidifier in a closed room. Cheapest to buy, cheapest to run, and it deals with the damp at the same time.
If you already have condensation or mould: start with the dehumidifier regardless of how you dry your clothes. Everything else gets easier once the moisture is under control.
Our team in Athlone deal with these questions every week, and we are happy to talk through room sizes and running costs before you commit to anything. Whatever you settle on, order online at Heavins.ie for delivery across Ireland, or click & collect in Athlone if you would rather pick it up yourself.