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10 Best Windows Ac Units 2025 in the United States

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Our Top Picks

#1

Winner

Amazon Basics 6000-BTU Window Air Conditioner, Up to 250 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Digital Temperature Display, Remote Control, White

Rating
10.0
Chosen by1,370
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
6710 reviews

Cooling Capacity (BTUs)
The unit cools rooms quickly and efficiently, making it ideal for bedrooms or small to medium spaces.
Energy Efficiency Ratio (EER)
Eco mode helps save energy while maintaining a comfortable temperature, balancing efficiency and performance.
Noise Level
Noise levels are reasonable for this type of AC, though some ambient sound may be noticeable in very quiet rooms.
Installation and Size
Installation is straightforward for those with some experience, though the included screws are cheap and require careful handling.
Additional Features
The remote control is convenient, easy to use, and works well from a distance, enhancing user comfort.

The Amazon Basics 6000-BTU Window Air Conditioner is a solid choice for cooling rooms up to 250 square feet, such as bedrooms or home offices. Its 6000 BTU cooling capacity is well-suited for small to medium spaces, and the unit offers both cooling and fan-only modes, giving you flexibility depending on the weather. With 7 temperature settings and 2 fan speeds, you can customize comfort easily. It operates quietly at around 56 decibels, which means it won’t disturb sleep or work.

Energy efficiency is decent with a SEER rating of 12.1, helping keep electricity bills reasonable but not top of the line. Installation is straightforward for most standard windows between 23 and 36 inches wide, and the adjustable window kit with expandable panels is a helpful feature. Basic tools like a screwdriver are needed but not included. Maintenance is simple thanks to the washable filter that traps dust and allergens, beneficial for keeping the air cleaner without ongoing replacement costs. The unit includes a remote control and digital temperature display, adding convenience.

On the downside, at nearly 42 pounds, it’s somewhat heavy for a single person to install alone. Although the noise level is low compared to many AC units, 56 dB might still be noticeable in very quiet rooms. The cooling power is ideal only up to 250 sq ft, so larger rooms will need a stronger unit. The energy efficiency is good but not exceptional, so there are more energy-saving options available. This unit provides a user-friendly, affordable, and efficient solution for small spaces needing reliable cooling without much fuss, fitting well for those wanting easy installation, quiet operation, and basic smart features like a remote and filter maintenance.

Rating
10.0
Chosen by1,370
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
6710 reviews

Cooling Capacity (BTUs)
The unit cools rooms quickly and efficiently, making it ideal for bedrooms or small to medium spaces.
Energy Efficiency Ratio (EER)
Eco mode helps save energy while maintaining a comfortable temperature, balancing efficiency and performance.
Noise Level
Noise levels are reasonable for this type of AC, though some ambient sound may be noticeable in very quiet rooms.
Installation and Size
Installation is straightforward for those with some experience, though the included screws are cheap and require careful handling.
Additional Features
The remote control is convenient, easy to use, and works well from a distance, enhancing user comfort.
#2

Amazon Basics 5000-BTU Small Window Air Conditioner, Up to 150 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Intuitive Mechanical Controls, White

Rating
9.4
Cooling Capacity (BTUs)
Noise Level
Installation and Size

Most important from
6710 reviews

Cooling Capacity (BTUs)
Quickly cools a room and offers adjustable settings, making it perfect for creating a comfortable environment.
Noise Level
Extremely easy to install with clear instructions, though it is quite loud compared to other units.
Installation and Size
Extremely easy to install with clear instructions, though it is quite loud compared to other units.
Additional Features
Exceeds expectations and works better than central air, even surviving hurricanes and winter storms without needing adjustments.

The Amazon Basics Window Air Conditioner is a compact unit with a cooling capacity of 5000 BTUs, making it suitable for small rooms up to 150 square feet. This means it is ideal for bedrooms, small living rooms, or office spaces. One of its strengths is its 3-in-1 functionality, offering cooling, dehumidifying, and fan options, which can enhance comfort in different conditions.

With seven temperature settings and dual cooling and fan settings, users have good control over their environment. The adjustable air direction is a plus, allowing you to direct the cool air where you need it most. The unit is designed to fit standard windows with its adjustable side panels, simplifying installation for many users. Additionally, the built-in filter is removable, washable, and reusable, making maintenance straightforward and cost-effective.

The air conditioner uses mechanical controls, which may feel less modern compared to digital interfaces. Weighing about 35 pounds, it might be slightly heavy for some users to install on their own. Despite these minor drawbacks, its ease of maintenance, versatility in fitting different window sizes, and multiple functionality make it a solid option for those looking to cool a small space without spending a lot.

Rating
9.4
Cooling Capacity (BTUs)
Noise Level
Installation and Size

Most important from
6710 reviews

Cooling Capacity (BTUs)
Quickly cools a room and offers adjustable settings, making it perfect for creating a comfortable environment.
Noise Level
Extremely easy to install with clear instructions, though it is quite loud compared to other units.
Installation and Size
Extremely easy to install with clear instructions, though it is quite loud compared to other units.
Additional Features
Exceeds expectations and works better than central air, even surviving hurricanes and winter storms without needing adjustments.
#3

LG 18,000 BTU Window Air Conditioner with Heat, 230/208V, Cools 1,000 Sq.Ft. for Bedroom, Living Room, Basement, Apartment, with Remote, 2 Speeds, 24-Hour Timer, White

Rating
8.8
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
1347 reviews

Cooling Capacity (BTUs)
This unit delivers impressive energy efficiency, running the cooling side on just 575 watts while providing 50% higher cooling capacity than the previous model.
Energy Efficiency Ratio (EER)
This unit delivers impressive energy efficiency, running the cooling side on just 575 watts while providing 50% higher cooling capacity than the previous model.
Noise Level
Quiet operation is a pleasant surprise, adding to the comfort without intrusive noise.
Installation and Size
Installation requires a 230/208V outlet, so ensure your home supports this voltage before purchasing.
Additional Features
Switching between heating and cooling modes happens seamlessly, making it a versatile climate control solution for year-round comfort.

The LG 18,000 BTU Window Air Conditioner with Heat is a solid choice for anyone needing to cool or heat a medium to large room, up to about 1,000 square feet. Its cooling power is strong enough for bedrooms, living rooms, basements, or apartments. One of its biggest advantages is the built-in heater, which makes it a versatile unit for year-round use. You can easily switch between two fan speeds and heat or cool modes, allowing some customization for comfort. It comes with a convenient remote control and features like a 24-hour timer and an auto-restart after power outages, which add to ease of use.

The unit has a washable filter and 4-way air deflection, helping distribute air better. On the downside, its energy efficiency ratio (EER) is relatively low at 2.8, meaning it might consume more electricity than some more efficient models. Also, the noise level is on the higher side at about 61.7 dB, which may be noticeable, especially in quiet environments. Installation requires a special 230/208V outlet, so make sure your home can support this voltage, as typical household outlets might not be compatible. Its size is fairly large, so you’ll need enough window space and clearance for installation.

This LG unit is a dependable, multi-functional window AC and heater combo suitable for medium to large spaces, ideal if you don’t mind a bit of noise or higher energy use.

Rating
8.8
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
1347 reviews

Cooling Capacity (BTUs)
This unit delivers impressive energy efficiency, running the cooling side on just 575 watts while providing 50% higher cooling capacity than the previous model.
Energy Efficiency Ratio (EER)
This unit delivers impressive energy efficiency, running the cooling side on just 575 watts while providing 50% higher cooling capacity than the previous model.
Noise Level
Quiet operation is a pleasant surprise, adding to the comfort without intrusive noise.
Installation and Size
Installation requires a 230/208V outlet, so ensure your home supports this voltage before purchasing.
Additional Features
Switching between heating and cooling modes happens seamlessly, making it a versatile climate control solution for year-round comfort.

Buying Guide for the Best Windows Ac Units

Choosing the right window air conditioning unit can make a significant difference in your comfort during hot weather. The key is to find a unit that fits your specific needs, taking into account the size of the space you want to cool, energy efficiency, noise levels, and additional features that can enhance your experience. By understanding the key specifications, you can make an informed decision and select a unit that will keep you cool and comfortable.
Cooling Capacity (BTUs)Cooling capacity, measured in British Thermal Units (BTUs), indicates how much heat the unit can remove from a room per hour. This is crucial because a unit with too low a BTU rating won't effectively cool the space, while one with too high a rating will cool the room too quickly without removing enough humidity, leading to a clammy feeling. To navigate this, consider the size of the room: for a small room (100-300 sq. ft.), 5,000-7,000 BTUs is sufficient; for a medium room (300-500 sq. ft.), 8,000-12,000 BTUs is ideal; and for a large room (500-800 sq. ft.), 14,000-18,000 BTUs may be necessary. Match the BTU rating to your room size for optimal comfort.
Energy Efficiency Ratio (EER)The Energy Efficiency Ratio (EER) measures the unit's cooling efficiency, calculated by dividing the BTUs by the power consumption in watts. A higher EER means the unit is more energy-efficient, which is important for reducing electricity bills and environmental impact. EER ratings typically range from 8 to 12. For the best efficiency, look for units with an EER of 10 or higher. If you use the AC frequently, investing in a higher EER unit can lead to significant savings over time.
Noise LevelNoise level, measured in decibels (dB), indicates how loud the unit will be when operating. This is important for maintaining a comfortable and quiet environment, especially in bedrooms or living areas. Noise levels for window AC units typically range from 50 to 70 dB. For a quieter experience, look for units with noise levels below 60 dB. Consider where you will place the unit and how sensitive you are to noise when making your choice.
Installation and SizeThe size and weight of the unit affect how easy it is to install and whether it will fit in your window. This is important to ensure a secure and proper fit, which impacts the unit's efficiency and safety. Measure your window dimensions and compare them to the unit's specifications. Smaller units are easier to install and handle, while larger units may require additional support or professional installation. Choose a unit that fits your window and can be installed securely.
Additional FeaturesAdditional features can enhance the functionality and convenience of the unit. Common features include remote controls, programmable timers, sleep modes, and energy-saving settings. These features are important for customizing your cooling experience and improving energy efficiency. Consider which features are most important to you: a remote control for convenience, a timer for scheduling, or energy-saving modes to reduce costs. Select a unit with features that match your lifestyle and preferences.

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