10 Best 10000 Btu Window Air Conditioners 2025 in the United States

The LG 10000 BTU window air conditioner is a solid choice for cooling medium-sized rooms up to 450 square feet. It offers quiet operation at about 52 dB, which means it won’t be too noisy whether you’re sleeping or working nearby. Installation is designed to be quick and straightforward, with all necessary components included. You can easily adjust the temperature and fan settings using the remote control or through LG’s ThinQ smart app, which also supports voice commands via Alexa and Google Assistant. This makes it convenient to control the unit even when you’re away from home.

The unit has three fan speeds and a 24-hour programmable timer, allowing you to customize cooling and save energy. Although its energy efficiency ratio (SEER) is 11.4, it’s not Energy Star certified, so it might use a bit more power compared to some other efficient models. The washable mesh filter helps keep the air clean and is easy to maintain, plus there’s a built-in dehumidifier to reduce moisture in the room. The use of eco-friendly R32 refrigerant is a nice touch for those concerned about environmental impact. One downside is the 1-year warranty, which is standard but not very long.

This LG model combines smart features and quiet comfort with decent energy use, making it a practical option for users who want easy control and good performance without a complicated setup.

The TCL H10W35W 10,000 BTU window air conditioner is a solid choice for cooling medium-sized rooms up to 450 square feet. Its cooling power at 10,000 BTU is appropriate for this space, delivering multiple fan speeds so you can adjust comfort levels easily. It stands out with its 3-in-1 functionality—combining an air conditioner, fan, and dehumidifier—which adds versatility beyond simple cooling. The unit’s noise level at 54 decibels is moderate; it’s not the quietest in the category but should be acceptable for most living spaces without being disruptive.

With a Seasonal Energy Efficiency Ratio (SEER) of 10.9 and features like Sleep and Eco modes, it offers decent energy-saving options that can help reduce electricity bills over time. Installation is straightforward as it fits standard window sizes, although it weighs over 50 pounds which may require some effort to set up. The inclusion of a remote control and WiFi connectivity supporting Alexa, Google Assistant, and Siri makes it very convenient to operate from anywhere in the room or via voice commands.

The programmable thermostat and timer allow you to customize cooling schedules, which is great for managing comfort and efficiency. It also comes with an air filter that helps improve air quality. While the unit is cool-only and doesn’t provide heating, its dehumidification function helps manage humidity levels effectively. Users looking for a reliable, energy-conscious air conditioner with smart control features will appreciate this model, though those needing ultra-quiet operation or heating capabilities might want to explore other options.

The LG 10,000 BTU Through the Wall Air Conditioner is designed to cool rooms up to about 440 square feet, making it suitable for bedrooms, living rooms, or small apartments. It uses an energy-efficient R-32 refrigerant with a solid Energy Efficiency Ratio (EER) of 10.7, which helps keep electricity use reasonable compared to some other models. The unit offers three cooling speeds and fan modes, including an energy saver setting and a dry mode that can remove moisture from the air, which is helpful for humid environments.

Installation is meant for wall mounting rather than the typical window setup, so it requires a through-the-wall opening. It comes with a trim kit and filter, making installation and maintenance easier, but it won't fit standard windows. Noise level is around 60 decibels, which is on the louder side for bedroom use but still manageable. You get a remote control and a programmable thermostat, allowing you some convenience in adjusting settings without needing to get up. The washable and reusable air filter is a plus, helping keep air cleaner without extra cost for replacements.

This model is not Energy Star certified, which means it may not be the most efficient option available. Also, its size and installation type limit flexibility if you want a more portable window unit or plan to move it between rooms. The sound might be a bit noticeable in very quiet settings. The warranty covers parts and labor for only one year, which is fairly standard but something to keep in mind. If you need a reliable wall-mounted AC with decent energy use and moisture control for a medium-sized room, this LG unit is a solid choice. However, if you want the quietest operation or easier installation for windows, other models might serve you better.