10 Best 12000 BTU AC Window Units 2025 in the United States

The Frigidaire 12,000 BTU Window Air Conditioner is designed to cool rooms up to 550 square feet, making it suitable for medium to large spaces like living rooms or larger bedrooms. It offers customizable cooling with six-way directional airflow and three fan speeds, allowing you to adjust comfort easily. The remote control and filter light reminder simplify use and maintenance, helping keep the unit running efficiently. Noise is relatively low at 57 dB, which is fairly quiet for its size, so it won't be too distracting during use.

Energy efficiency is decent with an EER of 10.9, and the Eco and Sleep modes help reduce power consumption, although it doesn't have an Energy Star rating, so it might not be the most cost-saving model over time. Installation is straightforward since it fits standard windows and includes a window kit. The washable dust filter is a plus for easy upkeep, but the unit weighs around 63.5 pounds, so installation might require some help. Its dimensions are typical for a 12,000 BTU unit, so ensuring your window can accommodate it is important.

The additional features like a 24-hour timer and dry mode add convenience and comfort, especially in humid conditions. The one-year warranty is standard, giving basic protection. This Frigidaire model is a solid choice if you want reliable, fairly quiet cooling with useful features, though it may not be the best pick if you prioritize top-tier energy savings.

The LG 12,000 BTU Window Air Conditioner is designed to cool spaces up to 550 square feet, making it suitable for medium-sized rooms like bedrooms, living rooms, and apartments. With a BTU rating of 12,000, it's powerful enough to maintain comfortable temperatures in these areas.

One of its standout features is the low noise performance, operating at just 52 dB at low mode, ensuring it won't disrupt your sleep or daily activities. The unit also offers multiple fan speeds and an auto-cool feature, allowing you to customize your cooling preferences easily.

The digital control panel and remote control enhance usability, along with the 24-hour timer for energy savings. The inclusion of a filter light reminder, window installation kit, and a slide-out, washable filter simplifies maintenance. However, it should be noted that the unit does not have an Energy Star rating, which may impact its energy efficiency. The SEER rating of 13 is decent but not exceptional.

The LG 12,000 BTU Smart Window Air Conditioner is a solid choice for cooling rooms up to 550 square feet, such as living rooms or kitchens. Its 12,000 BTU rating means it has enough power to cool large spaces effectively. With three fan speeds and a 4-way air deflection, you can customize airflow to suit your comfort. One standout feature is its smart capability: you can control the unit remotely using the LG ThinQ app or with voice commands through Alexa or Google Assistant, which adds convenience if you like managing devices with your phone or smart speaker.

In terms of noise, it operates quietly at about 52 decibels on low, which is similar to a normal conversation, so it won’t be disruptive. The unit also includes handy features like an auto-restart after power outages, a 24-hour timer, and a filter light reminder to help maintain air quality. The included dust filter is easy to clean but is basic compared to more advanced filters you might find on pricier models.

One thing to note is its Energy Efficiency Ratio (EER) of 12, which is decent but not top-tier, meaning it won’t be the most energy-saving option available. It also doesn’t carry the Energy Star certification. Installation is typical for a window unit, including an installation kit, but the unit is fairly heavy at 81 pounds, so having help during setup is a good idea. The dimensions (about 22 x 24 x 15 inches) are standard, so it fits most standard windows, but it's worth measuring your space first. The unit comes with a 1-year warranty, which is typical but not exceptionally long. With strong customer reviews averaging 4.2 stars, many users find it reliable and easy to use. This LG window AC is a good fit if you want a powerful, smart-controlled air conditioner with quiet operation for medium to large rooms, but if energy efficiency or advanced filtration are top priorities, you might want to explore other options.