10 Best Through Wall Air Conditioning Units 2026 in the United States

The LG 11,800 BTU through-the-wall air conditioner is designed to cool spaces up to about 440 square feet, making it suitable for medium-sized rooms like bedrooms, living rooms, or apartments. Its cooling capacity of 11,800 BTUs (or 0.9 tons) provides solid performance for keeping a typical room comfortable during warm days. With an energy consumption of around 1080 watts and Energy Star certification, this unit offers decent energy efficiency that can help manage electricity costs compared to less efficient models. It operates on a 230/208V power supply, which is common for through-wall units, but users should ensure their home wiring supports this voltage.

The air conditioner includes a remote control and offers three cooling and fan speeds, allowing easy adjustment of airflow and temperature from across the room. Installation requires a compatible wall sleeve, so it is important to verify measurements before purchase to ensure proper fit. A drawback is the limited 90-day warranty, which is shorter than many competitors offer, potentially affecting peace of mind.

This LG unit is well suited for someone needing a reliable, moderately powerful through-the-wall AC with energy efficiency and remote control convenience, though buyers should check installation requirements carefully and consider the short warranty period.

The LG 11,800 BTU through-the-wall air conditioner is designed to cool rooms up to about 530 square feet, making it suitable for medium-sized bedrooms, living rooms, or apartments. Its cooling power is solid for these spaces, and it offers three fan speeds along with three pre-set modes, including an energy saver and dry mode, which help tailor comfort and manage humidity effectively. The unit uses the R-32 refrigerant, known for being energy efficient and environmentally friendlier than older types. Speaking of efficiency, its Energy Efficiency Ratio (EER) of 10.6 is respectable, meaning it can cool your space without driving up electricity costs too much.

Installation-wise, its universal design fits most wall sleeves, and it comes with all necessary accessories like a trim kit and washable filter, making setup straightforward if you have the proper wall cutout (roughly 26" wide by 17" high). Its dimensions (24"W x 20"D x 14.4"H) are typical for through-wall units but might require professional installation if you’re not comfortable with cutting into walls. At 60 decibels, the noise level is moderate—noticeable but not overly disruptive, similar to a normal conversation.

The unit lacks an inverter compressor, which means it operates at a fixed speed and may be less energy-saving over time compared to models with variable speed compressors. The 1-year limited warranty is somewhat standard but shorter than some competitors offer. This LG model is a good option if you need a reliable, moderately quiet through-the-wall AC with decent energy efficiency for a medium-sized room. It balances effective cooling with useful features like remote control and dehumidifying but may not be the best choice if you want the latest energy-saving technology or extended warranty coverage.

The LG 10,000 BTU through-the-wall air conditioner is a solid choice for cooling medium-sized rooms up to about 440 square feet, such as bedrooms or living rooms in apartments. It uses an efficient R-32 refrigerant and has a respectable Energy Efficiency Ratio (EER) of 10.7, which balances cooling power and energy use well. With three cooling and fan speeds and multiple modes—including an energy saver and dry mode—it offers flexibility to match your comfort needs and save on electricity.

The unit is designed specifically for through-the-wall installation, not windows, and fits most standard wall sleeves with its dimensions (20.1" deep, 24" wide, and 14.4" high). Installation is made easier with a snap-together trim kit and a protective mesh grille. Noise-wise, it runs at about 56 decibels, which is noticeable but typical for this type of air conditioner and may be a bit loud for very quiet spaces. Additional conveniences include a washable, reusable filter and a remote control for easy operation.

One limitation is the absence of an inverter compressor, which means it may not be as energy-efficient or quiet as some higher-end models. The warranty covers only one year of parts and labor, which is relatively standard but something to keep in mind. If you want a dependable through-wall AC unit with decent efficiency and straightforward features, LG’s model is a practical pick, especially for rooms where you need steady, reliable cooling without extra bells and whistles.