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10 Best Window Unit Air Conditioners 2025 in the United States

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Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

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Our Top Picks

#1

Winner

Midea 12,000 BTU Smart Inverter Air Conditioner Window Unit with Heat and Dehumidifier – Cools up to 550 Sq. Ft., Energy Star Rated, Quiet Operation, Electronic Controls, Remote Control, White

Rating
9.9
Chosen by1,358
Energy Efficiency Ratio (EER)
Noise Level
Installation and Size

Most important from
16849 reviews

Energy Efficiency Ratio (EER)
Impressively efficient, pulling no more than 400 watts even on its highest settings.
Noise Level
Extremely quiet operation, making it ideal for bedrooms and home offices.
Installation and Size
Straightforward installation, fitting well even in smaller windows.

The Midea MAW12HV1CWT EasyCool Smart Inverter Air Conditioner Window Unit with Heat is a versatile option for those seeking both cooling and heating solutions. With a cooling capacity of 12,000 BTUs, it is well-suited for large rooms up to 550 square feet. The unit is energy-efficient, boasting a Seasonal Energy Efficiency Ratio (SEER) of 13.3, which promises up to 35% energy savings compared to standard units. This makes it a cost-effective choice for long-term use. The inverter technology also adds to its efficiency by adjusting the compressor speed according to the room’s cooling needs.

The heating function has limitations, as it will not work if the outside temperature falls below 41°F. This is something to consider if you live in an area with colder winters. One of the standout features is its ultra-low noise performance, operating at just 45 dB at its quietest. This makes it suitable for bedrooms, home offices, and living rooms where minimal noise is appreciated. The installation process seems straightforward, fitting double-hung windows with specific dimensions. The unit is a bit bulky, weighing 58 pounds, so some users might need assistance with installation.

Additional features like WiFi capability, voice control through Alexa and Google Assistant, and a SmartHome App add to its convenience. You can control it remotely, which is a handy feature for tech-savvy users. The LED display and multiple modes (Heat, Auto, Cool, Dry, Fan) make it easy to use and customize. The included remote control and installation kit are also helpful. Despite its many strengths, the Midea MAW12HV1CWT does have a few drawbacks. The heating function’s limitation can be a significant downside for those in colder climates. Moreover, while the unit is relatively quiet, it might still be noticeable in extremely quiet environments. This air conditioner is ideal for someone looking for a multi-functional, energy-efficient unit with modern features, but it may fall short for those needing robust heating in very cold conditions.

Rating
9.9
Chosen by1,358
Energy Efficiency Ratio (EER)
Noise Level
Installation and Size

Most important from
16849 reviews

Energy Efficiency Ratio (EER)
Impressively efficient, pulling no more than 400 watts even on its highest settings.
Noise Level
Extremely quiet operation, making it ideal for bedrooms and home offices.
Installation and Size
Straightforward installation, fitting well even in smaller windows.
#2

Midea 8,000 BTU Smart Inverter Air Conditioner Window Unit with Heat and Dehumidifier – Cools up to 350 Sq. Ft., Energy Star Rated, Quiet Operation, Electronic Controls, Remote Control, White

Rating
9.8
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
16849 reviews

Cooling Capacity (BTU)
Despite its claims, the unit may not be as quiet as advertised, comparable to an average 5000 BTU air conditioner.
Energy Efficiency Ratio (EER)
Energy efficiency is a standout feature, with the unit pulling no more than 400 watts even at maximum cooling and heating settings.
Noise Level
The unit is impressively quiet, making it barely noticeable even when running on its highest settings.
Installation and Size
Installation is straightforward and the unit fits well in a variety of window sizes, including smaller ones.

The Midea MAW08HV1CWT EasyCool Smart Inverter Air Conditioner is a versatile window unit offering both cooling and heating, making it suitable for year-round use. With an 8,000 BTU capacity, it effectively cools and heats rooms up to 350 square feet. One of its standout features is its energy efficiency, boasting an Energy Star certification and up to 35% energy savings thanks to its variable-speed inverter technology. The noise level is impressively low at 45 dB, ensuring quiet operation that won't disrupt daily activities or sleep.

Installation is relatively straightforward, fitting double-hung windows with widths between 24 to 38.5 inches and a vertical opening of 14.5 inches. Its compact dimensions (22.17 x 19.41 x 13.9 inches) should suit most window sizes and it comes with a comprehensive installation kit. Additional features include WiFi connectivity, allowing control via a smartphone app or voice commands through Alexa and Google Assistant. There are also multiple modes and speed settings, as well as a washable filter for easy maintenance.

However, it's worth noting that the heat function is only effective when the outside temperature is above 41°F, which might limit its use in colder climates. Additionally, at 56 pounds, it might require two people for installation. The Midea MAW08HV1CWT offers a good balance of cooling and heating performance with modern conveniences, making it a strong choice for medium-sized rooms.

Rating
9.8
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
16849 reviews

Cooling Capacity (BTU)
Despite its claims, the unit may not be as quiet as advertised, comparable to an average 5000 BTU air conditioner.
Energy Efficiency Ratio (EER)
Energy efficiency is a standout feature, with the unit pulling no more than 400 watts even at maximum cooling and heating settings.
Noise Level
The unit is impressively quiet, making it barely noticeable even when running on its highest settings.
Installation and Size
Installation is straightforward and the unit fits well in a variety of window sizes, including smaller ones.
#3

GE Window Air Conditioner Unit, 5,000 BTU for Small Rooms up to 150 sq ft. with Manual Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White

Rating
9.6
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
8170 reviews

Cooling Capacity (BTU)
This compact unit cools small rooms effectively, reaching comfortable temperatures even in spaces with high ceilings.
Energy Efficiency Ratio (EER)
The unit’s energy consumption is moderate, and running it continuously had little noticeable impact on the electric bill.
Noise Level
The unit operates quietly on low settings, providing a peaceful environment ideal for bedrooms or home offices.
Installation and Size
Installation is straightforward and hassle-free, making it easy to set up in standard double-hung windows.
Additional Features
Fan speed options add useful flexibility, allowing for adjustable airflow to suit different cooling needs.

The GE 5100 BTU Window Air Conditioner is a solid choice for cooling small rooms up to about 150 square feet, such as bedrooms or home offices. Its cooling capacity is well suited for these spaces, providing efficient and adjustable cooling with two fan speeds and two cooling modes. The unit operates at a moderate noise level of 56 dB, which is relatively quiet and suitable for nighttime use without being too disruptive.

Installation is straightforward thanks to the included EZ Mount kit and fixed chassis, fitting standard double-hung windows easily. The unit also features a washable filter that helps maintain performance and air quality with simple monthly cleaning. However, its energy efficiency ratio (EER) is on the lower side (2.6 SEER), meaning it may consume more power compared to higher-rated models, and the 1-star energy rating reflects this. This can result in higher electricity bills if used extensively.

The physical size is compact, working well for smaller windows but limiting its use to smaller rooms only. Although it doesn’t include advanced features like remote control or smart functions, it effectively and reliably covers the basics. This GE model is a good option for those seeking an affordable, easy-to-install window AC that quietly cools small spaces without extra tech bells and whistles.

Rating
9.6
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
8170 reviews

Cooling Capacity (BTU)
This compact unit cools small rooms effectively, reaching comfortable temperatures even in spaces with high ceilings.
Energy Efficiency Ratio (EER)
The unit’s energy consumption is moderate, and running it continuously had little noticeable impact on the electric bill.
Noise Level
The unit operates quietly on low settings, providing a peaceful environment ideal for bedrooms or home offices.
Installation and Size
Installation is straightforward and hassle-free, making it easy to set up in standard double-hung windows.
Additional Features
Fan speed options add useful flexibility, allowing for adjustable airflow to suit different cooling needs.

Buying Guide for the Best Window Unit Air Conditioners

Choosing the right window-unit air conditioner can make a significant difference in your comfort during hot weather. The key is to find a unit that fits your specific needs and space. To do this, you need to understand the various specifications and features that window-unit air conditioners offer. By knowing what to look for, you can make an informed decision that ensures you get the best performance and efficiency for your situation.
Cooling Capacity (BTU)Cooling capacity, measured in British Thermal Units (BTU), indicates how much heat an air conditioner can remove from a room per hour. This is crucial because it determines the size of the room the unit can effectively cool. Units with lower BTUs (5,000-8,000) are suitable for small rooms up to 350 square feet, while medium-sized rooms (350-550 square feet) require 8,000-12,000 BTUs. Larger rooms (550-1,000 square feet) need units with 12,000-18,000 BTUs. To pick the right one, measure your room's square footage and match it to the appropriate BTU rating.
Energy Efficiency Ratio (EER)The Energy Efficiency Ratio (EER) measures how efficiently an air conditioner uses energy to cool a room. A higher EER means better energy efficiency, which can lead to lower electricity bills. EER values typically range from 8 to 12. For optimal energy savings, look for units with an EER of 10 or higher. If you use the air conditioner frequently, investing in a higher EER unit can be more cost-effective in the long run.
Noise LevelNoise level, measured in decibels (dB), 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 rooms. Units with noise levels below 50 dB are considered quiet, while those between 50-60 dB are moderate. Anything above 60 dB can be quite loud. Choose a unit with a lower noise level if you are sensitive to sound or plan to use it in a quiet space.
Installation and SizeThe size and weight of the air conditioner affect how easy it is to install and whether it will fit in your window. Measure your window dimensions before purchasing to ensure the unit will fit. Some units are designed for easy installation with minimal tools, while others may require professional help. Consider the weight as well, especially if you plan to install it yourself. Lighter units are easier to handle, but make sure they still meet your cooling needs.
Additional FeaturesAdditional features can enhance the functionality and convenience of your air conditioner. Common features include remote controls, programmable timers, sleep modes, and energy-saving settings. Some units also offer smart connectivity, allowing you to control the air conditioner via a smartphone app. Think about which features are important to you and how they can improve your user experience. For example, a programmable timer can help you save energy by automatically turning the unit off when it's not needed.

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