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If you're concerned about how much energy an air conditioner will use, look for a model with a good energy efficiency ratio (EER). This is the ratio between an air conditioner's BTU and its power input (in watts). Generally, the higher the EER rating, the more efficient it is. Key specs – BTU rating: 7,000; Functions: AC, dehumidifier, fan; Energy rating: A; Max noise: 65dB; Extra features: Remote control, timer, two-speed fan; Hose length: 1.8m; Dimensions: 348 x 335 x 740mm; Weight: 21kg PACs should really be emptied and cleaned at the end of every summer season, and easily accessible fans and filters make that job a whole lot easier. Make sure you clear out any pipes or drains as well; they can get pretty stinky if left alone over a long winter. You could also look at the claimed energy class. Air conditioner manufacturers are obliged to self-certify their energy class, from A to G. However, we conduct our own expert tests according to the European Standard BS EN 14511:2013. Often, we find the claimed and actual energy class to be different. Can you buy an eco air conditioner?
These machines are quieter and more efficient than portable models, but need to be permanently positioned in just one room. If you've settled on a split-unit air conditioner, you'll need to get it set up by a professional – note that installers tend to be at their busiest during the summer. The only major downsides are noise and power consumption. The MC Series 7000 outputs around 58dBA in typical use, and is only a few decibels quieter with the fan on its lower setting. And while it uses around 104W while cooling, we saw that rise to peaks of 641W during dehumidification – although the way the dry mode works means that this isn’t constant, by any means. Still, you’ll hear the same complaints of most PACs, but you can easily live with such issues when the price is so low and the performance so impressive. Also known as fixed air conditioners, these are comprised of two parts: a condensing unit (mounted outside) and an evaporator (mounted inside). Both parts need to be connected, so installation is far more complex compared with a portable model.
The best portable air conditioners you can buy in 2023
The best portable air conditioners you can buy in 2023 1. Amcor SF8000E: Best low-cost portable air conditioner
Split-unit air conditioners tend to be more energy efficient, but these are more expensive and have to be permanently installed by a professional. We don't test split-unit air conditioners as they're less popular in the UK. Find out which retailers are rated highly by Which? members with our guide on the best and worst shops. Can you hire or rent an air conditioner? Choose a suitable model for the size of the room Those with a lower BTU in a large space will have to work harder to cool it, which is going to use more electricity. If you've not yet jumped on the air conditioning band-wagon, should you? Here are six things to look out for when choosing and using a portable air conditioner. What to look for when searching, choosing and using a portable air conditionerFans use just a fraction of the energy that air conditioners guzzle, as they only have to rotate lightweight blades. But while they might help your room feel less muggy, they only move the air around rather than actually cooling it.
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