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10 Best Window Ac Unit For Large Room 2025 in the United States

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Our Top Picks

#1

Winner

LG 12,000 BTU Window Air Conditioner, 115V, Cools 550 Sq.Ft. for Bedroom, Living Room, Apartment, Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, White

Rating
9.8
Chosen by1,264
Noise Level
Installation and Size
Additional Features

Most important from
16811 reviews

Noise Level
The LG air conditioner performs very well, is relatively quiet, and offers good value for the price.
Installation and Size
Despite some shipping issues, the unit seals well and fits tightly into the window frame, ensuring efficient cooling.
Additional Features
The inclined cooling grill effectively prevents stratifying pockets of hot air, enhancing comfort.

The LG 12,000 BTU Window Air Conditioner is designed for cooling large rooms up to 550 square feet, making it a suitable choice for bedrooms, living rooms, or apartments. One of its standout features is its quiet operation, with noise levels as low as 52 dB, which is ideal for creating a peaceful environment. The unit offers three cooling and fan speeds, along with an Auto Cool feature for customizable comfort.

Its digital control panel and remote control enhance usability, and the 4-way air deflection ensures flexible air direction. Additionally, the unit includes a 24-hour timer for energy savings and convenience. Installation is made easier with the included window installation kit, and maintenance is straightforward with the slide-out, washable filter and filter light reminder.

However, it is important to note that while the unit has a SEER of 13, it is not Energy Star certified, which may affect long-term energy costs compared to more energy-efficient models.

Rating
9.8
Chosen by1,264
Noise Level
Installation and Size
Additional Features

Most important from
16811 reviews

Noise Level
The LG air conditioner performs very well, is relatively quiet, and offers good value for the price.
Installation and Size
Despite some shipping issues, the unit seals well and fits tightly into the window frame, ensuring efficient cooling.
Additional Features
The inclined cooling grill effectively prevents stratifying pockets of hot air, enhancing comfort.
#2

Profile PHNT12CC Clearview Air Conditioner 12,000, Inverter Technology, Ultra Quiet, Medium Rooms up to 550 Sq. FT, Full Window View with Easy Installation, Energy-Efficient Cooling, 12200 BTU, White

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

Most important from
967 reviews

Cooling Capacity (BTUs)
It cools rooms efficiently and quickly, even spaces smaller than its maximum rating, making it well worth the investment despite a higher price point.
Energy Efficiency Ratio (EER)
The unit’s energy-saving eco mode helps regulate temperature smoothly without creating hot spots, contributing to a comfortable environment.
Noise Level
The unit operates so quietly that you might need to double check it’s even on.
Installation and Size
Installation is straightforward and can be completed solo in about 40 minutes, with no stress on the window frame unlike traditional AC units.
Additional Features
Connectivity and smart features can be problematic; the WiFi often fails to connect and filter indicator lights may malfunction.

The GE Profile PHNT12CC Clearview air conditioner offers a solid cooling capacity of about 12,200 BTUs, making it suitable for medium rooms up to around 550 square feet. While this is on the smaller side for truly large rooms, it fits well for moderately sized spaces. Its inverter technology boosts energy efficiency by about 34% compared to traditional units, which can save on electricity bills over time. The unit is Energy Star certified with a SEER rating of 12.1, reflecting good efficiency for window ACs. Noise-wise, it operates quietly at around 40 decibels, so it won’t be disruptive in most home settings.

The flex-depth design allows it to fit a variety of window thicknesses between 4.5 and 13.75 inches, and the clear window view is a unique plus if you want a less obstructed look from your window. Installation is straightforward for typical windows sized 20 to 40 inches wide. Additional smart features like built-in WiFi with app control and compatibility with Alexa and Google Assistant add convenience and modern control options.

On the downside, its cooling capacity may fall short for larger rooms above 550 sq. ft., so it’s not ideal if you need to cool a very large space. The 1-year warranty is fairly standard but somewhat limited. Also, the unit's weight of about 76 pounds means it might require help to install safely. This air conditioner is a strong choice for medium-sized rooms where energy savings, quiet operation, and smart features matter, but it may not fully meet the needs of larger room cooling.

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

Most important from
967 reviews

Cooling Capacity (BTUs)
It cools rooms efficiently and quickly, even spaces smaller than its maximum rating, making it well worth the investment despite a higher price point.
Energy Efficiency Ratio (EER)
The unit’s energy-saving eco mode helps regulate temperature smoothly without creating hot spots, contributing to a comfortable environment.
Noise Level
The unit operates so quietly that you might need to double check it’s even on.
Installation and Size
Installation is straightforward and can be completed solo in about 40 minutes, with no stress on the window frame unlike traditional AC units.
Additional Features
Connectivity and smart features can be problematic; the WiFi often fails to connect and filter indicator lights may malfunction.
#3

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
9.3
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
723 reviews

Cooling Capacity (BTUs)
It efficiently maintains a constant temperature and minimizes humidity, making it perfect for specialized rooms.
Energy Efficiency Ratio (EER)
Despite being highly efficient, pulling no more than 400 watts on max cooling and heating settings, it excels in energy consumption.
Noise Level
The unit is extremely quiet, barely noticeable even on its highest fan speed and turbo mode.
Installation and Size
Installation is straightforward, fitting well in various window sizes and requiring minimal maintenance.

The Midea MAW12HV1CWT EasyCool Smart Inverter Air Conditioner Window Unit is a versatile option for large rooms up to 550 square feet. With a powerful 12,000 BTU cooling capacity and an energy-efficient SEER rating of 13.3, it efficiently cools and dehumidifies spaces while also offering supplemental heating for cooler seasons. However, it’s important to note the heat function is not effective if the outside temperature drops below 41°F.

This unit is equipped with smart features like WiFi connectivity, voice control via Alexa and Google Assistant, and multiple modes and speed settings, making it user-friendly and convenient to operate remotely through the SmartHome App or the included remote control. The energy-saving inverter technology can reduce electricity usage by up to 35%, which is an added advantage for cost-conscious consumers.

One of its standout features is its ultra-low noise performance, operating at a quiet 45 dBA, ensuring minimal disturbance in your living space. Installation is straightforward with a fitting range for double-hung windows of 24 to 38.5 inches wide and a vertical opening of 14.5 inches, although the unit is relatively heavy at 58 pounds which might require two people for installation. The washable filter is easily accessible, promoting regular maintenance for optimal performance. Some users may find the electronic controls and smart features a bit complex if they prefer a simpler, more traditional setup. This unit is best suited for users looking for a comprehensive, energy-efficient solution that combines cooling, heating, and smart features in a relatively quiet and compact package.

Rating
9.3
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
723 reviews

Cooling Capacity (BTUs)
It efficiently maintains a constant temperature and minimizes humidity, making it perfect for specialized rooms.
Energy Efficiency Ratio (EER)
Despite being highly efficient, pulling no more than 400 watts on max cooling and heating settings, it excels in energy consumption.
Noise Level
The unit is extremely quiet, barely noticeable even on its highest fan speed and turbo mode.
Installation and Size
Installation is straightforward, fitting well in various window sizes and requiring minimal maintenance.

Buying Guide for the Best Window Ac Unit For Large Room

Choosing the right window air conditioning unit for a large room involves understanding several key specifications that will ensure the unit can effectively cool the space. It's important to consider the size of the room, the unit's cooling capacity, energy efficiency, noise levels, and additional features that can enhance comfort and convenience. By understanding these specifications, you can make an informed decision that best suits your needs and ensures a comfortable environment in your large room.
Cooling Capacity (BTUs)Cooling capacity is measured in British Thermal Units (BTUs) and indicates the amount of heat the unit can remove from the room per hour. This is crucial because a unit with too low a BTU rating won't cool the room effectively, while one with too high a rating may cool too quickly without properly dehumidifying. For large rooms, typically ranging from 350 to 700 square feet, you should look for units with a BTU rating between 8,000 and 14,000. To pick the right one, measure your room's square footage and match it to the appropriate BTU range.
Energy Efficiency Ratio (EER)The Energy Efficiency Ratio (EER) measures the unit's cooling efficiency by comparing the BTUs to the power consumption in watts. A higher EER indicates a more efficient unit, which is important for reducing energy bills and environmental impact. EER ratings typically range from 8 to 12. For large rooms, aim for an EER of at least 10 to ensure good efficiency. Consider your usage patterns; if the unit will run frequently, a higher EER can lead to significant savings over time.
Noise LevelNoise level is measured in decibels (dB) and indicates how loud the unit will be when operating. This is important for maintaining a comfortable environment, especially in bedrooms or living areas. Noise levels for window AC units can range from 40 dB (quiet) to 60 dB (louder). For large rooms, consider units with noise levels around 50 dB or lower if you prioritize a quieter operation. Think about where the unit will be placed and how noise might affect your daily activities.
Installation and SizeThe size and installation requirements of the unit are important to ensure it fits your window and can be installed properly. Larger units may require more support and a more complex installation process. Measure your window dimensions and compare them to the unit's specifications to ensure a proper fit. Consider the weight of the unit as well, as heavier units may need additional support brackets. If you are not comfortable with installation, you may need to hire a professional.
Additional FeaturesAdditional features can enhance the functionality and convenience of the unit. Look for features such as remote control, programmable timers, sleep modes, and energy-saving settings. These can make the unit easier to use and more efficient. For large rooms, features like adjustable louvers and multiple fan speeds can help distribute cool air more evenly. Consider what features are most important to you based on how you plan to use the unit and your personal preferences.

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