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

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Our Top Picks

#1

Winner

Midea 6,000 BTU Window Air Conditioner, 3-in-1 Cool/Fan/Dehumidifier Window AC Unit, Easycool Air Conditioner with Remote Control, Cools up to 250 Sq. Ft., Fits bedroom, study, office (2024 Upgrade)

Rating
9.9
Chosen by1,185
BTU (British Thermal Units)
Noise Level
Filter Type

Most important from
16767 reviews

BTU (British Thermal Units)
The Midea EasyCool 6,000 BTU Window Air Conditioner is impressively quiet, making it almost unnoticeable when running.
Noise Level
The Midea EasyCool 6,000 BTU Window Air Conditioner is impressively quiet, making it almost unnoticeable when running.
Filter Type
The washable air filter is a practical feature that helps in maintaining the unit's efficiency and air quality.

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.

Rating
9.9
Chosen by1,185
BTU (British Thermal Units)
Noise Level
Filter Type

Most important from
16767 reviews

BTU (British Thermal Units)
The Midea EasyCool 6,000 BTU Window Air Conditioner is impressively quiet, making it almost unnoticeable when running.
Noise Level
The Midea EasyCool 6,000 BTU Window Air Conditioner is impressively quiet, making it almost unnoticeable when running.
Filter Type
The washable air filter is a practical feature that helps in maintaining the unit's efficiency and air quality.
#2

Frigidaire 12,000 BTU Window Air Conditioner with Remote Control, Cools Up to 550 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White

Rating
9.8
BTU (British Thermal Units)
EER (Energy Efficiency Ratio)
Noise Level

Most important from
17511 reviews

BTU (British Thermal Units)
Delivers strong cooling power, effectively handling medium to large spaces with ease.
EER (Energy Efficiency Ratio)
Includes energy-saving modes that help balance comfort and power consumption.
Noise Level
Quiet enough to use in bedrooms or living areas without disruption.
Programmable Timer
Offers convenient features like remote control and programmable timer for easy temperature management.
Remote Control
Offers convenient features like remote control and programmable timer for easy temperature management.

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.

Rating
9.8
BTU (British Thermal Units)
EER (Energy Efficiency Ratio)
Noise Level

Most important from
17511 reviews

BTU (British Thermal Units)
Delivers strong cooling power, effectively handling medium to large spaces with ease.
EER (Energy Efficiency Ratio)
Includes energy-saving modes that help balance comfort and power consumption.
Noise Level
Quiet enough to use in bedrooms or living areas without disruption.
Programmable Timer
Offers convenient features like remote control and programmable timer for easy temperature management.
Remote Control
Offers convenient features like remote control and programmable timer for easy temperature management.
#3

GE Window Air Conditioner Unit, 6,000 BTU for Small Rooms up to 250 sq ft. with Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White

Rating
9.7
BTU (British Thermal Units)
Noise Level

Most important from
8096 reviews

BTU (British Thermal Units)
Despite minor flaws, the 6000 BTU model's cooling capacity is impressive, delivering cold air efficiently.
Noise Level
The air conditioner runs quietly on low, contributing to a comfortable environment without much noise disruption.

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.

Rating
9.7
BTU (British Thermal Units)
Noise Level

Most important from
8096 reviews

BTU (British Thermal Units)
Despite minor flaws, the 6000 BTU model's cooling capacity is impressive, delivering cold air efficiently.
Noise Level
The air conditioner runs quietly on low, contributing to a comfortable environment without much noise disruption.

Buying Guide for the Best Energy Efficient Window Air Conditioner

Choosing the right energy-efficient window air conditioner can make a significant difference in your comfort and energy bills. The key is to find a unit that fits your space, cooling needs, and energy efficiency preferences. By understanding the key specifications, you can make an informed decision that ensures you stay cool without wasting energy or money.
BTU (British Thermal Units)BTU measures the cooling capacity of an air conditioner. It's important because it determines how effectively the unit can cool a given space. Units with lower BTUs (5,000-8,000) are suitable for small rooms (100-350 sq. ft.), while medium BTUs (8,000-12,000) are ideal for medium-sized rooms (350-550 sq. ft.). Higher BTUs (12,000-18,000) are best for large rooms (550-1,000 sq. ft.). To pick the right one, match the BTU rating to the size of the room you want to cool.
EER (Energy Efficiency Ratio)EER measures the energy efficiency of an air conditioner. It's calculated by dividing the BTU rating by the unit's wattage. A higher EER indicates a more energy-efficient unit, which is important for reducing energy consumption and lowering utility bills. EER ratings typically range from 8 to 12. For the best energy savings, look for a unit with an EER of 10 or higher. Consider your usage patterns and energy-saving goals when choosing the EER rating.
Noise LevelNoise level is measured in decibels (dB) and indicates how loud the air conditioner will be when operating. This is important for maintaining a comfortable and quiet environment, especially in bedrooms or living areas. Noise levels for window air conditioners typically range from 50 to 70 dB. For a quieter experience, look for units with noise levels below 60 dB. Consider where you plan to install the unit and how sensitive you are to noise when making your choice.
Programmable TimerA programmable timer allows you to set the air conditioner to turn on or off at specific times. This feature is important for optimizing energy use and ensuring the room is cool when you need it. Timers can range from simple 24-hour settings to more advanced weekly schedules. If you have a regular routine, a programmable timer can help you save energy by only running the unit when necessary.
Remote ControlA remote control allows you to adjust the settings of the air conditioner from a distance. This is important for convenience, especially if the unit is installed in a hard-to-reach place. Remote controls typically offer basic functions like temperature adjustment, fan speed, and mode selection. If ease of use is a priority for you, look for a unit that includes a remote control.
Filter TypeThe filter type affects the air quality and maintenance of the air conditioner. Common filter types include washable, reusable, and replaceable filters. Washable and reusable filters are cost-effective and environmentally friendly, while replaceable filters may offer better filtration but require regular replacement. Consider your preference for maintenance and air quality when choosing the filter type.

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