10 Best 24000 BTU Air Conditioning Units 2025 in the United States

The LG 24,500 BTU Window Air Conditioner is a powerful unit capable of cooling spaces up to 1,560 square feet, making it suitable for large rooms like bedrooms, living rooms, and apartments. Its BTU rating is slightly above the typical 24,000, which ensures efficient cooling for sizable areas. With a Seasonal Energy Efficiency Ratio (SEER) of 13, it's not the most energy-efficient model available, but it still offers reasonable performance for its class. However, it does not have the Energy Star certification, which might be a drawback for those prioritizing energy savings.

The unit operates at a noise level of 61 dB, which is relatively quiet for such a powerful air conditioner, making it suitable for use in bedrooms or other quiet spaces. Installation is straightforward with the included window installation kit, and the unit is designed for window mounting, which is common for air conditioners of this type. Additional features like the remote control, digital control panel, multiple fan speeds, and 4-way air deflection provide flexibility and convenience in operation.

The auto restart function is a useful feature in case of power outages, ensuring the unit resumes operation without manual intervention. The 24-hour timer allows for customizable cooling schedules, helping to manage energy costs. Despite its strengths, the unit's weight (136 pounds) might make installation challenging, and it requires a 230-volt outlet, which may not be available in all homes. Additionally, it requires batteries for the remote control, adding a minor inconvenience. It is a strong contender for those needing a robust and feature-rich window air conditioner for larger spaces.

The Senville LETO Series Mini Split Air Conditioner Heat Pump offers a robust 24,000 BTU capacity, making it suitable for cooling or heating spaces up to 1250 square feet. It stands out with its SEER rating of 17, indicating decent energy efficiency, although it is not Energy Star compliant. This model's low noise level of 34 dB is commendable, ensuring a quiet operation which is ideal for bedrooms or living areas. One of its significant advantages is the integration with Alexa, allowing for convenient voice control and remote operation via an app.

The unit also provides versatile functionality with its 4-in-1 capabilities: air conditioning, heating, dehumidifying, and fan modes. The inclusion of a DC Inverter enhances its efficiency and performance, and it is both UL Listed and AHRI Certified for reliability. The installation package comes with all necessary components including a 16-foot line set, which is convenient, though professional installation is required, potentially adding to the cost.

The design is both stylish and functional, fitting well into various environments from residential to commercial settings. However, the product is imported from China, which may be a consideration for some buyers. Additionally, while the warranty covers 5 years on parts and the compressor, labor is not included, which could be a disadvantage if repairs are needed. This unit is a solid choice for those needing a powerful and versatile air conditioning solution.

The Whirlpool WHAW242CW is a strong choice if you need to cool a large room or apartment, as its 24,000 BTU power can effectively handle spaces up to 1,500 square feet. It comes with useful features like a digital display, three fan speeds, eco and sleep modes, and a 24-hour timer, giving you flexibility to tailor the cooling to your comfort. The included dehumidifier is a bonus, capable of removing 6.5 pints of moisture per hour, which helps maintain a comfortable indoor environment.

Installation is designed to be straightforward with the provided mounting kit, although it requires a special 230V electrical outlet, so it’s important to check your power supply compatibility before buying. Noise level is around 62 dB, which is a bit louder than quieter models, so it might be noticeable in very quiet rooms. The replaceable mesh filter with a clean alert makes maintenance easier, and the remote control adds convenience by letting you adjust settings from across the room.

The unit’s size and weight—it’s fairly large and heavy—might make handling and installation a bit challenging for some users. While the 1-year warranty is standard, longer coverage options could offer extra peace of mind. This air conditioner suits those who want a powerful, reliable cooling solution with convenient features for large spaces, provided they have the appropriate electrical setup and don’t mind the moderate noise level.