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10 Best LG Window Air Conditioners 2026 in the United States

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Our Top Picks

#1

Winner

LG 10,000 BTU Smart Window Air Conditioner, 115V, Cools 450 Sq. Ft. for Bedroom, Living Room, Apartment, Dual Inverter, Quiet Operation, Energy Star, works with LG ThinQ, Amazon Alexa and Hey Google

Rating
10.0
Chosen by1,316
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
287 reviews

Cooling Capacity (BTUs)
The inverter technology delivers efficient, powerful cooling even on the hottest days while noticeably reducing energy bills.
Energy Efficiency Ratio (EER)
The inverter technology delivers efficient, powerful cooling even on the hottest days while noticeably reducing energy bills.
Noise Level
This air conditioner runs quietly without disruptive rattling or humming, ideal for bedrooms, living rooms, or workspaces needing low ambient noise.
Size and Installation
Installation is straightforward with clear instructions, and the unit’s sleek design fits perfectly in standard windows.
Additional Features
The smart app connectivity allows seamless control of temperature, fan speed, and scheduling from anywhere, making operation effortless and convenient.

The LG 10,000 BTU Smart Window Air Conditioner is a strong choice for cooling medium-sized rooms up to about 450 square feet, such as bedrooms, living rooms, or small apartments. Its cooling capacity is well-suited for this space size, providing effective temperature control. Thanks to the advanced Dual Inverter technology, this unit operates quietly—at just 44 decibels in sleep mode, it won’t disturb your daily activities or sleep. It also offers good energy efficiency, exceeding Energy Star standards by up to 25%, which can help reduce electricity bills over time. The unit includes multiple fan speeds and an auto-cool feature, allowing you to customize airflow to your comfort.

Installation requires a window opening between 22 to 36 inches wide and 13 inches high, and the AC’s dimensions and weight (around 63 pounds) are typical for this category, so make sure your window can safely support it. One of the standout features is its smart connectivity: you can control the air conditioner remotely via the LG ThinQ app or with voice commands using Amazon Alexa or Google Assistant, adding convenience. Additional perks include a washable filter, a dehumidifier function, and filter light reminders that help with maintenance.

On the downside, the 1-year limited warranty is fairly standard but not very long, and while the noise level is low, some might still notice it in very quiet environments. Also, it requires standard 115V power and is not cordless, so it needs a nearby outlet. This LG window AC delivers a quiet, energy-saving cooling solution with smart features and easy controls, making it a practical pick for anyone needing reliable climate control in medium-sized indoor spaces.

Rating
10.0
Chosen by1,316
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
287 reviews

Cooling Capacity (BTUs)
The inverter technology delivers efficient, powerful cooling even on the hottest days while noticeably reducing energy bills.
Energy Efficiency Ratio (EER)
The inverter technology delivers efficient, powerful cooling even on the hottest days while noticeably reducing energy bills.
Noise Level
This air conditioner runs quietly without disruptive rattling or humming, ideal for bedrooms, living rooms, or workspaces needing low ambient noise.
Size and Installation
Installation is straightforward with clear instructions, and the unit’s sleek design fits perfectly in standard windows.
Additional Features
The smart app connectivity allows seamless control of temperature, fan speed, and scheduling from anywhere, making operation effortless and convenient.
#2

LG 14000 BTU Window Air Conditioners [2023 New] Remote Control WiFi Enabled App Ultra-Quiet Washable Filter Cools 800Sq.Ft for Large Room AC Unit air conditioner Easy Install White LW1521ERSM1

Rating
10.0
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
220 reviews

Cooling Capacity (BTUs)
This air conditioner cools large spaces effectively, handling an entire 900-square-foot area with ease and delivering a noticeable difference with the higher 14,000 BTU capacity.
Energy Efficiency Ratio (EER)
While generally energy-efficient with an eco mode, the lack of inverter technology means power usage may not be as optimized as in newer models.
Noise Level
The noise level is pleasantly low, blending into ambient sounds and effectively masking external noises like traffic, making it quieter than anticipated for a window AC of this capacity.
Size and Installation
Installation requires careful measurement and some effort, especially if modifications like removing storm windows are needed, but the included mounting kit and slide-in design help achieve a snug, secure fit.
Additional Features
The remote control offers full functionality mirroring the unit’s panel, enhancing usability beyond basic controls.

The LG 14000 BTU Window Air Conditioner is designed to cool large rooms up to around 700-800 square feet, making it well-suited for spacious bedrooms or living areas. With a strong cooling capacity of 14,000 BTUs, it can handle hot summer days efficiently. Its energy efficiency ratio (EER) of 11.2 means it performs reasonably well in energy use, though it’s not the highest efficiency model available. The noise level is about 53 decibels, which is fairly quiet for a window unit of this size but you might still notice it in very quiet settings.

Installation is straightforward thanks to the included EZ Mount kit and a slide-in/out chassis, fitting double-hung windows between 27 to 39 inches wide and up to 19 inches high. This ease of setup is a plus for users who prefer a simple, mostly DIY installation. Extra features stand out here: the unit supports WiFi control through LG’s ThinQ app and works with voice assistants like Google Assistant and Amazon Alexa, allowing you to adjust settings from anywhere. It also comes with a remote control, a washable dust filter that’s easy to clean, and an eco-friendly R32 refrigerant.

One small drawback is that it isn’t an inverter model, which means it might not adjust power use as smoothly as some newer models, possibly affecting electricity bills slightly. Also, the unit weighs 82 pounds, so handling it during installation might require two people. This LG air conditioner offers powerful cooling and smart features suitable for large rooms, with user-friendly installation and maintenance. It is a solid pick for those wanting modern conveniences like app control, but if you’re looking for the utmost in energy savings or ultra-quiet operation, there might be better options.

Rating
10.0
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
220 reviews

Cooling Capacity (BTUs)
This air conditioner cools large spaces effectively, handling an entire 900-square-foot area with ease and delivering a noticeable difference with the higher 14,000 BTU capacity.
Energy Efficiency Ratio (EER)
While generally energy-efficient with an eco mode, the lack of inverter technology means power usage may not be as optimized as in newer models.
Noise Level
The noise level is pleasantly low, blending into ambient sounds and effectively masking external noises like traffic, making it quieter than anticipated for a window AC of this capacity.
Size and Installation
Installation requires careful measurement and some effort, especially if modifications like removing storm windows are needed, but the included mounting kit and slide-in design help achieve a snug, secure fit.
Additional Features
The remote control offers full functionality mirroring the unit’s panel, enhancing usability beyond basic controls.
#3

LG 8,000 BTU Window Air Conditioner with Dehumidifier, 115V, Window AC for Medium Rooms up to 350 Sq. Ft. (25' x 14'), Window Unit AC with Remote Control, 3 Speeds, Auto-Restart, 24-Hour Timer, White

Rating
9.7
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
489 reviews

Cooling Capacity (BTUs)
It cools medium-sized rooms efficiently, maintaining a comfortable temperature even in hot and humid conditions.
Energy Efficiency Ratio (EER)
Energy costs remain low, with multiple units running simultaneously costing only a few dollars per day, highlighting its efficiency.
Noise Level
The unit runs quietly, with noise levels much lower than larger portable ACs, making it suitable for bedrooms and workspaces.
Size and Installation
The air conditioner fits in tight window spaces where clearance is limited, making it ideal for older homes with unusual window frames.
Additional Features
The washable dust filter keeps the evaporator coils spotless and extends the unit's lifespan when changed regularly.

The LG 8,000 BTU Window Air Conditioner is designed for medium-sized rooms up to 350 square feet, making it a solid choice if you need to cool a space like a bedroom or small living room. It offers a decent cooling power of 8,000 BTUs, which should be enough for the area specified. The unit is fairly energy efficient with a Seasonal Energy Efficiency Ratio (SEER) of 11.4, so it won't dramatically increase your electricity bill compared to less efficient models. In terms of noise, it runs quietly at about 52 decibels on low settings, allowing for comfortable sleep or work without too much distraction. The physical size is relatively compact and includes a window installation kit, which simplifies setup in most standard windows.

Additional handy features include a dehumidifier to reduce moisture in the air, a washable dust filter with a reminder light, and a 24-hour timer with remote control for convenience. The auto-restart function means the AC will turn itself back on after a power outage, avoiding the hassle of manual restarts. On the downside, while 52 decibels is quiet for an AC, it might still be noticeable for very sensitive sleepers. The cooling capacity is fixed, so larger rooms will not cool efficiently with this unit. Also, the warranty is limited to one year, which is fairly standard but something to keep in mind.

This LG model represents a reliable and user-friendly option for those looking to cool medium-sized rooms efficiently with some useful extra features.

Rating
9.7
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
489 reviews

Cooling Capacity (BTUs)
It cools medium-sized rooms efficiently, maintaining a comfortable temperature even in hot and humid conditions.
Energy Efficiency Ratio (EER)
Energy costs remain low, with multiple units running simultaneously costing only a few dollars per day, highlighting its efficiency.
Noise Level
The unit runs quietly, with noise levels much lower than larger portable ACs, making it suitable for bedrooms and workspaces.
Size and Installation
The air conditioner fits in tight window spaces where clearance is limited, making it ideal for older homes with unusual window frames.
Additional Features
The washable dust filter keeps the evaporator coils spotless and extends the unit's lifespan when changed regularly.

Buying Guide for the Best LG Window Air Conditioners

Choosing the right LG window air conditioner involves understanding your cooling needs and matching them with the features and specifications of the unit. It's important to consider the size of the room, energy efficiency, noise levels, and additional features that can enhance your comfort and convenience. By focusing on these key specifications, you can ensure that you select an air conditioner that will effectively cool your space while being cost-effective and easy to use.
Cooling Capacity (BTUs)Cooling capacity, measured in British Thermal Units (BTUs), 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. For small rooms up to 150 square feet, a unit with 5,000-6,000 BTUs is sufficient. Medium-sized rooms up to 300 square feet may require 7,000-8,000 BTUs, while larger rooms up to 450 square feet might need 10,000-12,000 BTUs. To pick the right one, measure your room and choose a unit with the appropriate BTU rating to ensure efficient cooling.
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 ratings 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 is an important consideration, especially if the air conditioner will be used in a bedroom or living area. Noise levels are measured in decibels (dB). Units with noise levels below 50 dB are considered quiet and are suitable for bedrooms or offices. Units with noise levels between 50-60 dB are moderate and can be used in living rooms. If noise is a major concern, look for models specifically designed to operate quietly.
Size and InstallationThe physical size of the air conditioner and the ease of installation are important factors. Ensure that the unit fits your window dimensions and that you have the necessary tools and support for installation. Some units come with installation kits that make the process easier. If you are not comfortable with DIY installation, consider professional installation services.
Additional FeaturesModern air conditioners come with various additional features that can enhance comfort and convenience. Features like remote control, programmable timers, sleep mode, and energy-saving modes can make the unit more user-friendly. Some units also offer smart connectivity, allowing you to control the air conditioner via a smartphone app. Consider which features are important to you and choose a model that offers them.

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