10 Best Air Conditioner Window 2026 in the United States

The LG 24,500 BTU Smart Window Air Conditioner is designed for large rooms up to 1560 sq. ft., making it suitable for bedrooms, living rooms, or apartments. It offers robust cooling power and features smart controls through LG ThinQ technology, compatible with Amazon Alexa and Google Assistant, allowing remote operation. The unit has a cooling capacity of 24,500 BTUs and an Energy Efficiency Ratio (EER) of 10.3, which is decent but not the highest in energy efficiency.

This air conditioner operates at a relatively low noise level of 50 dB on low settings, though it can reach up to 61 dB under some conditions, which may still be noticeable in quieter environments. It includes three cooling and fan speeds and a dehumidification function that can remove up to 1.8 pints of moisture per hour, enhancing comfort further. Additional features include a user-friendly digital control panel, a timer, a filter check reminder light, and a power failure auto restart. The installation kit and remote control are included, but note that the unit is quite heavy at 132 pounds, which may pose challenges during installation.

The lack of Energy Star certification may be disappointing for those seeking maximum energy savings. Nonetheless, the convenience of smart features and the strong cooling capacity make this air conditioner a solid choice for larger spaces. The 24-hour timer and the filter check reminder add extra ease of use.

The LG 12,000 BTU window air conditioner is designed to cool medium-sized rooms up to about 550 square feet, making it suitable for bedrooms, living rooms, or small apartments. Its cooling power is solid for this space size, offering three fan speeds and an auto cool mode, so you can adjust airflow to your comfort level easily. One standout feature is its quiet operation, with noise levels as low as 52-53 decibels, which is gentle enough not to disturb sleep or work.

Installation is straightforward, with a window kit and a slide-out washable filter included, and it comes with a remote for convenient control. The 24-hour timer helps save energy by allowing you to set when the unit turns on or off. Its energy efficiency rating (SEER 13) is average compared to newer, more efficient models, so electricity costs may be moderate. The unit does not have a high Energy Star rating, which is something to consider if you prioritize energy savings.

This LG model provides reliable, quiet cooling with easy controls and decent energy features, making it a good fit for medium rooms where noise and simple operation are important. However, it might not be the best choice for larger rooms or spaces with poor insulation.

The LG 12,000 BTU Window Air Conditioner is a solid choice for cooling medium to large rooms, covering up to 550 square feet efficiently. Its cooling capacity fits well with typical home spaces like living rooms or bigger bedrooms. With an Energy Efficiency Ratio (EER) reflected by a Seasonal Energy Efficiency Ratio (SEER) of 11.4, it offers decent energy savings, helping keep electricity bills reasonable. The noise level at 53 decibels is relatively quiet for a window unit, so it won’t be too disruptive in daily use.

Installation is designed to be user-friendly with the included EZ Mount kit, fitting double-hung windows between 27 and 39 inches wide, and it comes with helpful accessories for easy setup and secure mounting. The removable, washable dust filter is a practical feature, making maintenance simple and helping the unit run efficiently without buildup. Additionally, smart features like WiFi control via the LG ThinQ app and voice commands through Google Assistant or Amazon Alexa add convenience, allowing you to adjust settings remotely. The unit also includes a remote control and offers a dehumidifier function, which can improve comfort by reducing humidity.

The 1-year warranty is fairly standard, and the unit weighs about 82 pounds, which means it might be a bit heavy for some to install alone. The cooling power and smart features stand out, though the noise level, while low for this type of product, may still be noticeable to very sensitive ears. This LG model is well-suited for those wanting a powerful, smart window AC with easy maintenance and installation, but if you prioritize ultra-quiet operation or longer warranty coverage, other options might be worth considering.