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3 Best Air Conditioners For 1000 Square Feet 2025 in the United States

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Our Top Picks

#1

Winner

LG 18,000 BTU Window Air Conditioner, 230/208V, Cools 1,000 Sq.Ft. (25' x 40' Room Size), Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, White

Rating
9.7
Chosen by1,102
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Noise Levels

Most important from
16793 reviews

Cooling Capacity (BTU)
The LG 18,000 BTU Window Air Conditioner performs very well, fitting tightly into the window frame and sealing properly on all sides.
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Despite some issues during shipping, the unit was replaced quickly and has been working efficiently, providing good value for the price.
Noise Levels
Although the unit is relatively quiet, comparable to the sound of a window box fan, the compressor operates at a slightly higher pitch but remains manageable.
Additional Features
The inclined cooling grill effectively directs cool air towards the ceiling, reducing hot air pockets and ensuring even cooling throughout the room.

The LG 18,000 BTU Window Air Conditioner is a solid choice for cooling a 1,000 square foot area. Its powerful cooling capacity makes it well-suited for larger rooms, ensuring that spaces up to 25' x 40' remain comfortable even during hot weather. With 3 cooling and fan speeds, the unit offers flexibility in adjusting airflow and temperature to suit your preferences. The Auto Cool feature, along with the 4-way air deflection, helps in distributing air evenly throughout the room.

The convenience of electronic controls and a remote control means you can operate the unit without having to move from your spot, which is particularly handy. Additionally, the auto-restart function ensures that the unit resumes its settings automatically after a power outage, adding to its user-friendliness. Maintenance is straightforward with a filter light reminder that alerts you when the washable filter needs cleaning, ensuring efficient operation over time.

There are a few considerations to keep in mind. The unit has a Seasonal Energy Efficiency Ratio (SEER) of 10.3, which is decent but not the highest in terms of energy efficiency. It is not Energy Star certified, which means it might not offer the best energy savings compared to other models. Another point to consider is the noise level, which is 61 dB. While this is fairly standard for window units, it might be noticeable in quieter environments. The unit is also quite heavy at 130 pounds, so installation might require some assistance. Additionally, the product dimensions mean it needs a fairly large window opening to fit properly.

Rating
9.7
Chosen by1,102
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Noise Levels

Most important from
16793 reviews

Cooling Capacity (BTU)
The LG 18,000 BTU Window Air Conditioner performs very well, fitting tightly into the window frame and sealing properly on all sides.
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Despite some issues during shipping, the unit was replaced quickly and has been working efficiently, providing good value for the price.
Noise Levels
Although the unit is relatively quiet, comparable to the sound of a window box fan, the compressor operates at a slightly higher pitch but remains manageable.
Additional Features
The inclined cooling grill effectively directs cool air towards the ceiling, reducing hot air pockets and ensuring even cooling throughout the room.
#2

LG 18,000 BTU DUAL Inverter Smart Window Air Conditioner, 230V, Cools 1,000 Sq. Ft. for Bedroom, Living Room, Apartment, Ultra Quiet Operation, ENERGY STAR®, with LG ThinQ, Amazon Alexa & Hey Google

Rating
9.4
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Noise Levels

Most important from
1023 reviews

Cooling Capacity (BTU)
The air conditioner cools spaces quickly and maintains low temperatures efficiently, even in extreme heat conditions.
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Energy efficiency is impressive, with low electric bills even in high-temperature regions like Texas.
Noise Levels
The unit's fan turns on every three minutes to sample the air, which can be slightly distracting at first but is generally quite quiet.
Additional Features
The smart control features via the wifi connection and app control from anywhere are a huge bonus.

The LG 18,000 BTU DUAL Inverter Smart Window Air Conditioner is designed to cool spaces up to 1,000 square feet, making it suitable for large rooms, apartments, or combined areas. Its standout feature is the smart control capability via the LG ThinQ App, which allows remote operation through a smartphone, Google Assistant, or Amazon Alexa. This convenience is particularly useful for adjusting settings on the go or maintaining an optimal indoor environment effortlessly.

The unit boasts an impressive cooling power of 18,000 BTUs, ensuring it can handle substantial cooling needs efficiently. It operates at a low noise level of 44 dB, which is quieter than many other models, making it ideal for bedrooms or quiet spaces where noise reduction is valued. Additionally, it offers multiple fan speeds and Auto Cool, allowing users to customize airflow according to their preferences. Energy efficiency is another strong point, with an 11.3 SEER rating and Energy Star certification, indicating cost savings on electricity bills.

However, the unit is relatively heavy at 110.2 pounds, which might make installation a bit challenging without assistance. Despite this, the included remote control and various other features like the dehumidifier and filter light reminder enhance its usability. This air conditioner is a strong contender for anyone looking to cool large areas efficiently and quietly while enjoying the benefits of smart home integration.

Rating
9.4
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Noise Levels

Most important from
1023 reviews

Cooling Capacity (BTU)
The air conditioner cools spaces quickly and maintains low temperatures efficiently, even in extreme heat conditions.
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Energy efficiency is impressive, with low electric bills even in high-temperature regions like Texas.
Noise Levels
The unit's fan turns on every three minutes to sample the air, which can be slightly distracting at first but is generally quite quiet.
Additional Features
The smart control features via the wifi connection and app control from anywhere are a huge bonus.
#3

LG LW1823HRSM - Room Air Conditioners with Heating Cooling

Rating
9.1
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Type of Air Conditioner

Most important from
1254 reviews

Cooling Capacity (BTU)
Cools our small house really well and the heat is awesome. Worth every penny.
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Works fantastically with my 1600 watt generator. Saved propane and no electric bills is my main goal.
Type of Air Conditioner
In a few minutes you can easily go from heating to air conditioning back to heating again.
Noise Levels
Far better than burning anything for heat. Pure awesomeness. Quietness a BONUS!
Additional Features
Easy to install and has worked beautifully for the 2 months I've been running it. Keeps the temperature steady, no big temp swings like cheap units.

The LG 18,000 BTU Wi-Fi Window Air Conditioner with Heat is well-suited for cooling and heating rooms up to 1000 square feet, making it a strong choice for medium to large living spaces and apartments. It stands out with its high cooling capacity of 18,000 BTU and the added versatility of a heating function. The inclusion of Wi-Fi capabilities through LG ThinQ Technology allows you to control the unit remotely via a smartphone app or through voice commands with Alexa and Google Assistant, adding significant convenience.

Users can also benefit from multiple fan speeds, a 24-hour programmable timer, and an auto-restart function after power failures, ensuring continuous comfort without manual intervention. The unit’s electronic controls and remote make it user-friendly and easy to manage settings from across the room. However, with a SEER of 11.1, it is not the most energy-efficient option available, and it lacks an Energy Star rating, which could mean higher energy consumption compared to more efficient models.

Noise levels are moderate at 57 dB, which might be noticeable but not overly disruptive. The air conditioner is on the heavier side, weighing 132 pounds, which could pose challenges during installation. Despite these drawbacks, for those needing both cooling and heating functionalities in a single, controllable unit, this LG model presents a strong option, particularly with its smart features and capacity to handle sizable spaces.

Rating
9.1
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Type of Air Conditioner

Most important from
1254 reviews

Cooling Capacity (BTU)
Cools our small house really well and the heat is awesome. Worth every penny.
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)
Works fantastically with my 1600 watt generator. Saved propane and no electric bills is my main goal.
Type of Air Conditioner
In a few minutes you can easily go from heating to air conditioning back to heating again.
Noise Levels
Far better than burning anything for heat. Pure awesomeness. Quietness a BONUS!
Additional Features
Easy to install and has worked beautifully for the 2 months I've been running it. Keeps the temperature steady, no big temp swings like cheap units.

Buying Guide for the Best Air Conditioners For 1000 Square Feet

Choosing the right air conditioner for a 1000 square feet space involves understanding several key specifications that will ensure you get the best performance and efficiency for your needs. It's important to consider factors such as cooling capacity, energy efficiency, type of air conditioner, noise levels, and additional features. By understanding these specifications, you can make an informed decision that will keep your space comfortable and your energy bills manageable.
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. For a 1000 square feet space, you typically need an air conditioner with a cooling capacity of around 18,000 to 22,000 BTU. If the space has high ceilings, large windows, or gets a lot of sunlight, you might need a higher BTU rating. Conversely, if the space is well-insulated and shaded, a lower BTU rating might suffice. Choosing the right BTU ensures efficient cooling without overworking the unit.
Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER)Energy efficiency is crucial for keeping operating costs low. The Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER) measure how efficiently an air conditioner uses electricity. A higher EER or SEER rating means better energy efficiency. For a 1000 square feet space, look for units with a SEER rating of at least 14 or higher. This will ensure that you get the most cooling for the least amount of energy, saving you money on your utility bills.
Type of Air ConditionerThere are several types of air conditioners to consider: window units, portable units, split systems, and central air conditioning. Window units are easy to install and suitable for single rooms. Portable units offer flexibility but may be less efficient. Split systems provide efficient cooling for larger areas and are quieter. Central air conditioning is ideal for cooling an entire home but requires ductwork. For a 1000 square feet space, a split system or a high-capacity window unit might be the best choice, depending on your specific needs and existing infrastructure.
Noise LevelsNoise levels, measured in decibels (dB), can significantly impact your comfort, especially if the air conditioner is in a living or sleeping area. Quieter units typically have noise levels below 50 dB. If you are sensitive to noise or plan to use the air conditioner in a bedroom or office, look for models with lower noise ratings. Higher noise levels might be acceptable in less frequently used areas or where background noise is not a concern.
Additional FeaturesModern air conditioners come with various additional features that can enhance convenience and comfort. Features like programmable thermostats, remote controls, sleep modes, and energy-saving settings can make operation easier and more efficient. 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 will improve your overall experience with the air conditioner.

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