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10 Best LG Window Ac Units 2025 in the United States

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Our Top Picks

#1

Winner

LG LW1424RD, 14000 BTU, White 14,000 Window Air Conditioner, 115V, 700 Sq.Ft. (25' x 28' Room Size), Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart

Rating
10.0
Chosen by1,230
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
17378 reviews

Cooling Capacity (BTU)
The unit is relatively quiet, performing up to expectations with good cooling power. It seals well in the window frame, ensuring efficient operation.
Energy Efficiency Ratio (EER)
The energy-saving mode is particularly effective. It allows the fan to shut off with the compressor, then periodically checks the air temperature to maintain comfort without constant noise.
Noise Level
Noise levels are low, comparable to a background whisper, making it suitable for those sensitive to sound while sleeping.
Installation and Window Compatibility
Installation is straightforward, but make sure to test the unit before fully installing it to avoid wasting time and energy.
Additional Features
The inclined cooling grill is a standout feature, effectively directing cool air to the ceiling and preventing hot air pockets.

The LG LW1424RD Window Air Conditioner offers an impressive 14,000 BTU cooling capacity, making it suitable for medium to large rooms up to 800 sq. ft. This unit excels in cooling power, effectively handling spaces like living rooms or large bedrooms. The 11.2 SEER rating indicates decent energy efficiency, though it is not Energy Star certified, so it may not be the most energy-efficient option on the market.

Its noise level is 56 dB, which is relatively quiet for a unit of this capacity, ensuring a comfortable environment without too much disturbance. The unit features three cooling and fan speeds, along with an Auto Cool function, allowing for customized comfort. Additionally, it includes a useful auto-restart feature that comes in handy during power outages, and a 24-hour digital timer for scheduling convenience.

Installation should be straightforward given its standard window compatibility, but be aware of its 82-pound weight, which might require additional help during setup. The electronic controls and included remote make it easy to operate, while the slide-out washable filter and filter alert simplify maintenance. A drawback could be the lack of Energy Star certification, which might be a concern for those prioritizing energy savings. The LG LW1424RD is a reliable choice for effective cooling in larger spaces.

Rating
10.0
Chosen by1,230
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
17378 reviews

Cooling Capacity (BTU)
The unit is relatively quiet, performing up to expectations with good cooling power. It seals well in the window frame, ensuring efficient operation.
Energy Efficiency Ratio (EER)
The energy-saving mode is particularly effective. It allows the fan to shut off with the compressor, then periodically checks the air temperature to maintain comfort without constant noise.
Noise Level
Noise levels are low, comparable to a background whisper, making it suitable for those sensitive to sound while sleeping.
Installation and Window Compatibility
Installation is straightforward, but make sure to test the unit before fully installing it to avoid wasting time and energy.
Additional Features
The inclined cooling grill is a standout feature, effectively directing cool air to the ceiling and preventing hot air pockets.
#2

LG LW1224RD 12,000 Window Air Conditioner, 115V, 550 Sq.Ft. (22' x 25' Room Size), Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, 12000 BTU, White

Rating
8.5
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
17378 reviews

Cooling Capacity (BTU)
The unit delivers strong, cold air with a temperature differential of over 28 degrees, proving its powerful cooling capacity even in intense heat.
Energy Efficiency Ratio (EER)
Operating cost is impressively low, with three units running for several days costing only about $6, making it very economical for continuous use.
Noise Level
The AC runs quietly, maintaining a peaceful environment without the typical loud hum, even while effectively cooling larger spaces.
Installation and Window Compatibility
Installation requires some effort due to the unit's weight and size, but with proper support, it fits well and can be customized for different window sizes.
Additional Features
Humidity control is excellent, quickly reducing moisture levels to create a comfortable and dry atmosphere.

The LG LW1224RD window air conditioner is a solid choice for cooling rooms up to 550 square feet, making it suitable for larger spaces like living rooms or master bedrooms. With a cooling capacity of 12,000 BTU, it provides strong cooling power for most medium to large rooms. Its Seasonal Energy Efficiency Ratio (SEER) of 11.4 suggests it offers decent energy savings, though it’s not the top in efficiency compared to some newer models. Noise-wise, it operates quietly at 53 dB on low settings, which helps keep your environment peaceful without the usual hum of an AC unit.

Installation is straightforward for standard windows, and LG includes window curtain panels to help with fit and insulation. The electronic controls paired with a remote make it convenient to adjust settings without getting up, and the three fan speeds plus an Auto Cool mode allow you to customize airflow to your comfort. Additional handy features include an auto restart after power outages—so you don’t have to reset it manually—and a built-in dehumidifier that helps reduce moisture in the air. On the downside, the unit weighs 82 pounds, which might make installation tricky without help.

While it lacks a formal energy star rating, its efficiency is reasonable but not the very best available. Some users might find that the noise is still noticeable at higher fan speeds. The one-year warranty is standard but not extensive. This LG model is a dependable, moderately efficient window AC that balances quiet operation and user-friendly features, making it ideal for someone needing reliable cooling in a sizable room without complicated setup or controls.

Rating
8.5
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
17378 reviews

Cooling Capacity (BTU)
The unit delivers strong, cold air with a temperature differential of over 28 degrees, proving its powerful cooling capacity even in intense heat.
Energy Efficiency Ratio (EER)
Operating cost is impressively low, with three units running for several days costing only about $6, making it very economical for continuous use.
Noise Level
The AC runs quietly, maintaining a peaceful environment without the typical loud hum, even while effectively cooling larger spaces.
Installation and Window Compatibility
Installation requires some effort due to the unit's weight and size, but with proper support, it fits well and can be customized for different window sizes.
Additional Features
Humidity control is excellent, quickly reducing moisture levels to create a comfortable and dry atmosphere.
#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
8.5
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
1315 reviews

Cooling Capacity (BTU)
Switching between heating and cooling happens quickly and seamlessly, making it a true climate control unit for year-round comfort.
Energy Efficiency Ratio (EER)
The unit offers outstanding energy efficiency for its heating and cooling capacity, running heat at about 1280 watts and cooling at 575 watts, which supports off-grid solar power use in ideal conditions.
Noise Level
Operating quietly is a notable bonus, enhancing comfort without intrusive noise even though the unit is moderately loud by specs.
Installation and Window Compatibility
Installation may require special wiring (230/208V) and some physical effort due to the unit's weight, but users find the setup manageable with proper help.
Additional Features
The digital control panel and remote are intuitive and straightforward, requiring no technical expertise to manage heating, cooling, and temperature settings.

The LG 18,000 BTU Window Air Conditioner with Heat is a solid choice if you need both cooling and supplemental heating in medium-sized rooms up to about 1,000 square feet, such as bedrooms, living rooms, or basements. Its cooling capacity is strong enough for spaces roughly 25 by 40 feet, providing effective climate control. The unit offers two fan speeds for cooling, heating, and just air circulation, so you can adjust airflow to your comfort. Installation requires a special 230/208V plug, which might mean extra setup considerations compared to standard 115V window ACs.

Noise-wise, it runs at about 61.7 decibels, which is moderately loud and could be noticeable in quiet rooms. The energy efficiency ratio (EER) is relatively low at 2.8, indicating it may use more electricity than some newer, high-efficiency models. On the plus side, the digital control panel and remote control make operation easy, and features like a 24-hour timer, auto-restart after power outages, and washable filters add convenience and usability. The 4-way air deflection helps distribute cooled or heated air more evenly.

The unit’s weight is on the heavier side, so installation may require help. Although it doesn’t have a high energy star rating, it’s a versatile unit for year-round use in spaces needing both cooling and heating without separate devices. If you want something simple, reliable, and multifunctional and don’t mind moderate noise or energy use, this LG model fits well.

Rating
8.5
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
1315 reviews

Cooling Capacity (BTU)
Switching between heating and cooling happens quickly and seamlessly, making it a true climate control unit for year-round comfort.
Energy Efficiency Ratio (EER)
The unit offers outstanding energy efficiency for its heating and cooling capacity, running heat at about 1280 watts and cooling at 575 watts, which supports off-grid solar power use in ideal conditions.
Noise Level
Operating quietly is a notable bonus, enhancing comfort without intrusive noise even though the unit is moderately loud by specs.
Installation and Window Compatibility
Installation may require special wiring (230/208V) and some physical effort due to the unit's weight, but users find the setup manageable with proper help.
Additional Features
The digital control panel and remote are intuitive and straightforward, requiring no technical expertise to manage heating, cooling, and temperature settings.

Buying Guide for the Best LG Window Ac Units

When choosing an LG window air conditioning unit, it's important to consider several key specifications to ensure you select the best model for your needs. Understanding these specifications will help you make an informed decision and ensure that the unit you choose will effectively cool your space, be energy efficient, and fit within your window dimensions. Here are the key specs to consider and how to navigate them.
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 BTU ratings (5,000-8,000 BTU) are suitable for small rooms up to 350 square feet. Medium-sized rooms (350-550 square feet) require units with 8,000-12,000 BTU, while larger rooms (550-1,000 square feet) need units with 12,000-18,000 BTU. 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 rating 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 plan to use the unit frequently or for long periods, a higher EER rating will 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 environment, especially in bedrooms or living areas. Units with noise levels below 50 dB are considered quiet, while those between 50-60 dB are moderate. Anything above 60 dB may be too loud for some users. Consider where you will place the unit and how sensitive you are to noise when choosing the right noise level for your needs.
Installation and Window CompatibilityInstallation and window compatibility refer to the ease of installing the unit and whether it will fit in your window. Measure your window dimensions and compare them to the unit's specifications to ensure a proper fit. Some units come with installation kits that make the process easier. If you're not comfortable with DIY installation, you may want to consider professional installation services. Ensuring compatibility and ease of installation will save you time and hassle.
Additional FeaturesAdditional features can enhance the functionality and convenience of your air conditioner. Common features include remote control, programmable timers, sleep mode, and energy-saving modes. Some units also offer smart connectivity, allowing you to control the unit via a smartphone app. Consider which features are important to you and will 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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