Honeywell Portable Air Conditioner 9000 BTU | Energy Efficient 3-in-1 Air Conditioning Unit | 3 Fan Speeds, LCD Display, Remote Control, 24Hr Timer | Aircon For Rooms Up to 26m²

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However, if you do decide to use a portable air conditioner, there are things you can do to make it more efficient: Electric fans come in many shapes and sizes. They range from basic models right up to the expensive and multi-functional Dyson Hot + Cool, which doubles as an electric heater. The settings on the Midea are easy to work, whether you're looking to air condition or to use the fan setting, so it got to work immediately.

Air conditioners with a BTU rating of 10,000 or higher are typically the most efficient at cooling a room, but the higher the BTU, the louder and heavier the model. Most AC units also come with an Energy efficiency Ratio (EER). A higher EER rating equates to greater efficiency; EER indicates the ratio of the air conditioner’s BTUs per hour to its power input, measured in watts.The UK is aiming to phase down the use of HFCs by 2030 by 79% for alternatives that have less of a global warming impact such as R290. You’ll find these are used more in the latest portable air conditioner models, but older machines may still use an HFC refrigerant. Combined Energy Efficiency Ratio (CEER) rating of 10.8 is on the higher end for a portable AC/heater The durability of your portable air conditioning unit will depend on the model and how well you look after it.

We've tested portable air conditioners from a range of popular brands, including AEG, Argos own-brand Challenge, DeLonghi and ElectriQ. The unit also pushes any warm air and excess moisture out through a hose and out the window (you will need to have a window within reach for the machine to work properly). What size air conditioner do I need?

Do you need to clean your air conditioner?

This article was written by Erica Puisis, a freelance home writer who has been contributing to The Spruce since 2017. She specializes in large and small appliances that make homes more comfortable. To find the best portable air conditioners, Puisis evaluated single-hose and dual-hose models, along with evaporative coolers for a no-hose option. Each one was compared based on how many square feet it can cool and its BTU rating and CFM. Other functional features that were considered were a self-evaporation feature, smart features, and any additional functions—such as a fan, dehumidifier, or heater. The best portable air conditioners on the market right now are light and compact – ideal if you don't have a lot of space to play with. The best way to sum up this DeLonghi portable air conditioner may be: quiet and effective. Compared to previous DeLonghi portable air conditioners, the Pinguino Arctic Whisper model is 3 decibels quieter, according to the manufacturer. It has three fan speeds, plus an auto option that balances comfort and energy efficiency. Another mode is Arctic Whisper Extreme, which is the mode that results in the most minimal amount of operating noise. At its highest setting, its sound level registers at 52 decibels. We think this mode is especially handy if you’re using the portable air conditioner in your bedroom and want cool, comfortable temperatures but not a lot of excessive noise. The most frequent complaints about this unit’s performance have nothing to do with cooling power. It’s noisy at high fan speeds, although that’s not unusual for any type of portable or window air conditioner. One thing to keep in mind is that while it has four caster wheels to support its weight, it's still nearly as heavy as our best overall option—something to keep in mind if you plan to carry it up a flight of stairs. Unlike some pricier models, it doesn't have heating or dehumidifying capabilities. Still, all in all, its features are hard to beat if you're on a budget.

Overall, we were very satisfied with how well the De'Longhi Pinguino was able to cool a large space, and we found it to be unobtrusive and quiet.

Best Budget: Devola Master 10000 BTU Portable Air Conditioner With Cooling & Heating

It measures 44.9 x 39.5 x 75cm, and is pretty bulky and very heavy so be aware of this when planning where it's going to go in your home.