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Smaller air conditioners struggle to keep up with open layouts, while larger ones can be loud and power-hungry. This LG 23,500 BTU air conditioner strikes the right balance, and it’s currently on sale for $599.99 on StackSocial, which is a notable drop for a unit designed to cool spaces up to about 1,400 square feet. That capacity makes it suitable for large living rooms, open studio spaces, or offices where a smaller 8,000- or 12,000-BTU unit would run continuously and struggle to keep up. The design is still recognizably a window air conditioner, but it’s a big one, measuring about 30.7 by 17.7 by 26 inches and weighing 112 pounds, so installation should require two people and a sturdy window frame.

Unlike traditional window units, this smart window AC uses LG’s Dual Inverter compressor, which adjusts its speed based on a room’s temperature. In everyday use, that means the air conditioner can maintain a steady temperature rather than blasting cold air in short bursts. It delivers 23,500 BTU of cooling power across four cooling and fan speeds, with an Auto Cool setting that automatically adjusts them. You can also change the airflow direction with four-way adjustable vents, so it isn’t limited to the area directly in front of the unit. There’s also a 3-in-1 mode system: standard cooling for hot days, a fan mode to circulate air without running the compressor, and a dry mode that focuses on pulling moisture out of the air during humid weather. Through the LG ThinQ app, you can change settings remotely from your phone, and the system also works with Amazon Alexa and Google Assistant for voice commands—useful if the AC is installed in a hard-to-reach window or you want to turn it on before walking into the room. That said, one practical detail to check before buying is the power requirement—this model runs on a 230-volt outlet, which not every home window setup already has.