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Some models double up as a dehumidifier, meaning they serve a purpose throughout the year, not only in the summer. If you'll mostly be using this function, though, we recommend buying a dedicated dehumidifier instead. In theory, the higher the claimed BTU, the more efficiently it can cool a room. As a general rule, 5,000 to 8,000 BTUs is adequate for most living rooms or bedrooms. Use this calculation to work out what BTU is right for you: They are generally heavy, unwieldy appliances. If you have reduced strength and/or live alone, you might need to get someone to help you set it up. 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.
A 5,000 BTU air conditioner should have enough power to effectively cool 100-150 square feet, which is more or less the standard bedroom size in homes and apartments. To cool more than a single room, your power requirements climb: Realistically, you want 12,000-14,000 BTUs to cool 550-700 square feet.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.
Increase capacity for a room with high sun exposure; +10% cooling output. That would reduce the 5000 BTU AC room size to 90-135 sq ft. If you are attempting to cool a second story that is typically warmer than the ground floor or a space that gets a lot of direct sunlight (for example, a room with a large west-facing window), you want to add 10% of the recommended BTUs. For example, a home owner in Atlanta might want to determine their BTU usage during winter. Atlanta winters tend to hover around 45°F and temperatures may fall as low as 30°F occasionally. Given that the desired temperature of the residents is 75°F, the desired temperature increase would be 75°F - 30°F = 45°F.
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. Why it made the cut: The LG LW1817IVSM is quiet, energy-efficient, and supports smart functionality. Once you answer how big of a room will 5000 BTU AC cool, you should find the best 5000 BTU air conditioners. The Midea U also uses inverter technology, which helps better regulate energy flow to the unit based on demand. It received an extremely high 15 CEER score, which is incredible considering that most efficient units score an 11 or 12. Lastly, the Midea U supports smart home features so that you can set recurring schedules—and it’s compatible with Alexa and Google Assistant, allowing you to turn the unit on or off with your voice.
All of the models we've tested are heavy (up to 30kg) and awkward to lift out of the box. If you live alone, we suggest you get someone to help you set it up, particularly if you're pregnant or elderly. Why it made the cut: The Midea U will quietly cool down your space, thanks to its distinctive U-shaped design.With some air conditioner/dehumidifiers, you'll need to connect a hose (which might not be supplied) to drain the water. With others, you'll need to set the machine up as you would in air conditioning mode, with the hose out of the open window. Portable models extract hot air from your home and push it outside through the attached hose. A reliable model will cool the room you're in, but don't expect it to push cold air down the hallway or into another room. Before you get a portable unit, there are some more sustainable options to cool your home that you can try beforehand, such as using an electric fan or closing curtains. When deciding on the proper input for the "insulation condition" field in the calculator, use generalized assumptions. A beach bungalow built in the 1800s with no renovations should probably be classified as poor. A 3-year-old home inside a newly developed community most likely deserves a good rating. Windows normally have poorer thermal resistance than walls. Therefore, a room with lots of windows normally means poor insulation. When possible, try to install double-glazed windows to improve insulation. Desired Temperature Increase or Decrease
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