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AEG Comfort 6000 Portable Air Conditioner review: pre-cools your bedroom for a comfortable night's sleep

Powerful, efficient and built to last, we put the AEG Comfort 6000 Portable Air Conditioner to the test cooling tester Tamsin's home.

By Poppy O'Neill | Last updated Aug 19, 2025

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AEG Comfort 6000 Portable Air Conditioner

Price on writing: £600 | Buy now from John Lewis

What we like
  • Simple to use

  • Lots of different features

  • Very effective

  • Pre-cools your bedroom beautifully

  • A-rated for energy-efficiency

  • App-connected

  • Uses environmentally friendly and sustainable R290 gas

What we don't like
  • Very heavy

  • Too noisy to sleep with it on

  • Expensive

  • Window kit doesn't fit all types of window, and is sold separately

Key specs

BTU rating: 12000 | Energy rating: A |  Noise level: 64dB | Speed settings: 4 | Hose length: 1.2m | Dimensions: 70 x 47 x 38cm | Weight: 33kg |  Power: 2600W

How we tested

Our tester, Tamsin, put the air conditioning unit through its paces in her two-bedroom home in Surrey over the course of two months in Summer 2024. Trying out all the functions in her bedroom, she took detailed notes on how easy the air conditioner was to set up, how effective it was at cooling the room and whether it's quiet enough to sleep next to.

Related: The best portable air conditioners for UK homes

Early Years Award

AEG Comfort 6000 Portable Air Conditioner: our verdict

While getting air conditioning installed is growing in popularity in the UK thanks to a few years on the trot of 40°C+ heatwaves, a portable air con unit is a more flexible and affordable option you can wheel out when temperatures rise, and put in the cupboard or garage when not needed.

This model from AEG is one of the most highly recommended portable air conditioners in the Mumsnet Talk forums, and for good reason. It cools a room quickly and effectively, much more so than even the best quiet fan you might have in your bedroom for warm summer nights.

Unfortunately, Tamsin found the air conditioner too noisy to have on while she slept. However, its talents at pre-cooling the room - as well as an app that allows you to turn it on and set timers remotely - means you can turn your bedroom into a cool oasis in advance, turning off the unit when it's time to sleep.

The air conditioner takes a bit of time to set up, and it's very heavy at 33kg. However, once this task is complete, it's ready to cool your room to the perfect temperature, ending any sweaty, sleepless summer nights.

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What's the AEG Comfort 6000 Portable Air Conditioner like to set up and start using?

Setting up the air conditioner is quite involved, and it's a heavy unit - the word 'portable' refers to the fact that the unit isn't permanently installed, rather than it being easy to move around. Tamsin needed to enlist the help of her husband to get the air conditioner up the stairs and into position in their room.

The air conditioner has wheels, so once it's in the room it's easy to swivel around and find the perfect spot. There are window kits available to fit different types of window frame (available from Amazon or AEG) which make the air conditioner more efficient, effective and save energy. Tamsin found the window kit and tube quite fiddly to set up, but thankfully you'll only need to do this once, as the tube can be tucked away when not in use.

Once it's ready to go, there are plenty of features, with a straightforward and clearly laid out control panel. Choose from auto, cool, dry (AKA dehumidifier mode) and fan modes, set timers and switch to sleep mode - plus there's a child lock option to keep little fingers from changing the settings.

With the AEG app you can use your smartphone as a remote control, which is most useful for turning the air con on in advance of going to bed. It can take a few tries to connect to WiFi, but once you're paired it's an intuitive and easy to use app.

Related: The best pedestal fans, according to Mumsnet users

he One Show’s Rising Star Award

What's the AEG Comfort 6000 Portable Air Conditioner like to use day-to-day?

When compared to Tamsin's previous tower fan, the AEG Comfort 6000 Portable Air Conditioner is in a league of its own. While it was sadly too noisy to have on during the night, it does an amazing job of pre-cooling the room before she goes to bed.

Some reviewers who are heavy sleepers say they can sleep with the air conditioner running, so if you like white noise or are a heavy sleeper, it may be OK for you.

The AEG app makes scheduling cooling easy, so whichever room in your home turns into a sauna the moment summer begins, you'll be able to get it to a pleasant temperature at a regular time that fits with your routine.

Related: The best budget fans from just £10

Does the AEG Comfort 6000 Portable Air Conditioner offer good value for money?

While the AEG comes highly recommended and is noticeably more effective than cheaper air conditioners, it's certainly pricy. We didn't love that the window kit is sold separately and costs around £100, on top of the £600 price tag for the air conditioner unit itself. The window kit is needed for the air conditioner to achieve optimum effectiveness and efficiency, so having it as an optional extra didn't quite make sense to us.

At 12000BTU the air conditioner can cool up to 36m², which translates to 6x6m or 20x20ft - a large area by anyone's standards. This makes it a great option for open-plan or large rooms, and the difference it makes to the temperature and feel of the air in a room is hard to put a price tag on.

The AEG Comfort 6000 Portable Air Conditioner is a premium option, and you'll be getting a super-effective unit from a highly rated brand.

About the author

Poppy O'Neill is a Content Editor at Mumsnet and a mother of two. She's been researching and reviewing the products Mumsnetters swear by for 3 years, with a particular focus on home essentials, laundry and fans. From a highly-recommended retractable washing line to the best quiet fans money can buy, and Mumsnet's favourite dehumidifier to the steam generator iron that'll cut your ironing time in half, she loves to deep-dive into research and find the very best products on the market.

Poppy is also an award-winning, best-selling children's and parenting author of books such as Don't Worry, Be Happy, The Extraordinary Book That Makes You Feel Happy and Mother Power. She specialises in children's mental health and her books are used by therapists, teachers and SENCOs across the UK. She won a The Week Junior Book Award in 2023, her books have been translated into several languages and she's been featured in The Guardian, The Sunday Times and The Sun.

About Mumsnet reviews

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