10 Best Costco Air Conditioners 2026 in the United States

The LG 12,000 BTU window air conditioner is a solid choice for cooling medium-sized rooms up to about 550 square feet, like bedrooms, living rooms, or apartments. Its 12,000 BTU power means it can handle typical spaces without struggling. It operates quietly, at around 52-53 dB on low settings, so it won’t be a noisy distraction while you work or sleep. You get three fan and cooling speeds along with an easy-to-use digital control panel and remote, making adjustments straightforward.

The air conditioner also includes a washable mesh filter with a reminder light, which helps keep the air clean and the unit efficient. With a 24-hour timer and auto restart feature, it offers decent convenience and energy-saving options. However, this unit doesn’t have advanced smart features like WiFi control or app connectivity, which some users might expect these days. Its seasonal energy efficiency ratio (SEER) of 13 is average, so it’s not the most energy-efficient model but should be reasonable for standard use.

The installation kit is included, making setup easier for a window unit. Weighing 81 pounds, it’s on the heavier side but typical for this capacity. This model is a dependable and user-friendly window air conditioner best suited for people who want reliable cooling with quiet performance and basic controls, without needing smart home integration.

The LG 11,200 BTU Through the Wall Air Conditioner is designed to cool rooms up to about 550 square feet, making it suitable for bedrooms, living rooms, or apartments of medium size. With a cooling power of 11,200 BTU, it provides solid cooling without being overkill for spaces of this size. The unit also includes a supplemental heating feature, so it can warm your room on cooler days, which adds versatility compared to standard air conditioners.

Energy-wise, it has a Seasonal Energy Efficiency Ratio (SEER) of 9.7, which is decent but not among the most efficient models. It runs on a 230/208V power supply, so it needs a compatible outlet and may require professional installation, especially since it’s a through-the-wall type rather than a window unit. This setup is great for a permanent cooling solution that doesn’t block your window. Noise level is reported at 55 decibels, which is average; it won’t be completely silent but should be tolerable for most people, especially in living areas or bedrooms. The air flows in four directions, and you can adjust fan speeds to customize comfort. Controls are straightforward with a digital panel and remote, and features like a 24-hour timer and auto-restart after power outages add convenience.

The unit includes a removable and washable filter which helps maintain air quality and is easy to clean. It does not include smart features like Wi-Fi connectivity or app control, so it is a more basic model in that sense. This LG air conditioner is a reliable choice if you want a combination of cooling and heating in a medium-sized room with a fixed wall installation. It is practical and user-friendly, but if you’re looking for quiet operation or smart home features, you might want to explore other options.

The LG 10000 BTU Smart Window Air Conditioner is a solid choice for cooling medium-sized rooms up to about 450 square feet. Its 10,000 BTU power is effective for spaces like bedrooms or living rooms, and it offers three fan speeds plus auto cooling to customize airflow. One strong point is the smart ThinQ technology, letting you control the unit remotely through your phone or voice assistants like Alexa and Google, which adds convenience especially if you want to adjust settings without getting up. The unit operates fairly quietly around 52-53 decibels, which is reasonable for a window AC but not the absolute quietest on the market. Installation is designed to be quick and straightforward, which helps if you’re setting it up yourself. It includes a washable dust filter that’s easy to maintain, promoting cleaner air.

This model does not have Energy Star certification, so it may not be the most energy-efficient option available, reflected by its SEER rating of 11.4. Some users might notice slightly higher energy use compared to more efficient models. Additionally, while it features a dehumidifier function and auto restart after power loss, the noise level might still be a minor downside if you need near-silent operation during sleep. The included remote control and filter light reminder add user-friendly touches. Backed by a one-year warranty and positive customer ratings, this LG air conditioner combines smart features and solid performance, making it a good fit if you value easy control and decent quietness but don’t mind paying a bit more in energy costs.