10 Best Energy Efficient Window Air Conditioner 2025 in the United States

The Midea MAW06R1CWT EasyCool 6,000 BTU Window Air Conditioner is a solid choice for cooling spaces up to 250 sq ft. It offers three modes—cooling, fan, and dehumidifying—making it a versatile option for different needs. With a BTU rating of 6,000, it can cool small to medium-sized rooms efficiently. One of its major strengths is its low noise level at 52 dB, which is quieter than many other models, making it a good fit for bedrooms or offices where noise can be a disturbance.

The unit's Energy Efficiency Ratio (EER) of 12.1 is decent, though it does not have an Energy Star rating, which might be a drawback for those specifically looking for high energy efficiency standards. However, it includes energy-saving features such as Eco mode and a programmable timer, allowing users to set schedules and save on electricity bills. The included remote control and intuitive LED display make it user-friendly.

Another plus is the reusable and removable air filter, which helps in maintaining air quality by filtering out dust and pet hair. Installation is straightforward with all the necessary accessories included, though a screwdriver is required which is not provided. The one-year parts and labor warranty adds an extra layer of assurance. Despite its strengths, it’s worth noting that its SEER rating is not the highest, and it lacks the Energy Star certification.

The Frigidaire 12,000 BTU window air conditioner is a solid choice for cooling rooms up to about 550 square feet. Its cooling capacity suits medium to large rooms, making it practical for many home environments. With a SEER rating of 10.9, it provides decent energy efficiency, although it does not have an Energy Star certification, which means it may not be the most energy-saving option available. The noise level is moderately quiet at 57 dB, quiet enough not to be disruptive during use and suitable for bedrooms or living areas.

The unit features three fan speeds and 6-way directional airflow, allowing for customizable cooling comfort. Convenience is notable with the included remote control for easy adjustments and a 24-hour programmable timer to manage cooling schedules and help save energy. Eco Mode and Sleep Mode further aid in reducing power consumption while maintaining comfort. Maintenance is user-friendly, with washable dust filters and a filter-clean alert to keep the unit running efficiently.

One consideration is the weight—over 60 pounds—which could make installation or moving the unit somewhat challenging. Additionally, since it lacks Energy Star certification, those seeking the highest efficiency might want to explore other models. For users needing reliable, customizable cooling with straightforward controls and reasonable energy features, this Frigidaire model offers a good balance of performance and ease of use.

The GE Window Air Conditioner Unit, offering 6,000 BTU, is specifically designed for small rooms up to 250 sq ft. It stands out with its energy-efficient operation, providing three cooling modes and fan speeds, which can help maintain optimal room temperature. This makes it an excellent choice for small bedrooms, studio apartments, or home offices where space is limited and comfort is essential.

One of its notable strengths is the inclusion of a programmable timer and remote control, allowing for convenient operation and customization of cooling schedules. The unit operates at a noise level of 56 dB, which is relatively quiet, making it suitable for nighttime use without much disruption. However, it does not meet Energy Star requirements, which might be a consideration for users focusing on top-tier energy efficiency.

With an Energy Efficiency Ratio (EER) of 11, it performs decently in terms of energy consumption, although there are more efficient models available on the market. Installation is straightforward thanks to the included EZ Mount installation kit, and maintenance is simplified with a washable, slide-out filter that should be cleaned every 30 days to ensure optimal performance. While the unit lacks Energy Star certification, its compact size (13.38 x 16.36 x 12.59 inches) and light weight (4.8 pounds) make it easy to install and manage. It also has strong user feedback, with a 4.3 out of 5-star rating from over 7,000 reviews, highlighting user satisfaction with its cooling performance and ease of use. This air conditioner is a practical choice for those seeking an efficient and manageable cooling solution for smaller spaces, although energy-conscious consumers might consider units with a higher EER or Energy Star rating.