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

The COSTWAY 24000 BTU Mini Split Air Conditioner & Heater is designed for cooling and heating rooms up to about 1250-1500 sq. ft, making it a solid choice for larger living spaces or open-plan areas. Its SEER rating of 18.5 indicates it is quite energy efficient, which helps keep electricity bills lower compared to less efficient units. The inverter technology is a plus, as it adjusts power use smoothly to maintain temperature without frequently turning on and off, reducing wear and noise. Speaking of noise, at 50 dB, this unit operates quietly enough for bedrooms or living rooms, so it won’t disturb your peace.

Installation requires a licensed HVAC professional since it’s a ductless split system, which means it involves mounting the indoor and outdoor units separately but offers flexible placement and efficient climate control. Extra features like five modes (cool, heat, dry, fan, auto), multiple fan speeds, sleep and eco modes, and a remote with timer add convenience and customization to your comfort. It also has a self-cleaning function and auto-defrost to keep maintenance easier. The use of environmentally friendlier R32 refrigerant is an added benefit for green-minded users.

On the downside, installation complexity and cost might be higher than window units, and while noise is low, it’s not completely silent. Also, some buyers may find the size of the indoor unit somewhat large for smaller rooms. This COSTWAY model suits those needing a powerful, energy-saving, year-round climate solution in medium to large spaces, provided they can arrange professional installation.

The MRCOOL 24000 BTU ductless mini split system is a strong choice for cooling and heating spaces up to about 1,050 square feet, making it suitable for homes, offices, or small commercial areas. It offers a solid cooling capacity of 24,000 BTUs (about 2 tons), which should handle medium to larger rooms comfortably. One of its biggest advantages is the easy DIY installation process with pre-charged lines and no special tools needed, saving time and installation costs. Energy efficiency is impressive with a high SEER rating of 22.7, meaning it uses electricity smartly, which can lower your utility bills over time. However, it carries only a 1-star BEE rating, which might be less relevant in the US but indicates room for improvement in energy efficiency by some standards. Noise-wise, it operates quietly at 46 decibels, so it won’t disturb your daily activities or sleep. The unit supports modern convenience with WiFi control and compatibility with Google Assistant and Alexa, allowing easy temperature adjustments from your phone or voice commands.

Additional handy features include a dehumidifier, sleep mode, and a remote control, enhancing comfort. On the downside, the unit is fairly heavy at 180 pounds and requires a 230V power supply, which might mean you need to check if your electrical setup is compatible. While the design is sleek and neutral, blending easily into most interiors, the product’s lower ranking in the broader market and the 1-star energy rating could make you consider other options if utmost energy efficiency or a lighter unit is a priority. The 5-year parts and 7-year compressor warranty give some peace of mind for long-term reliability.

This MRCOOL mini split fits well if you want a versatile, efficient, and smart-controlled air conditioner with heat for year-round comfort, especially if you value DIY installation and quiet operation.

The Daikin 24,000 BTU Entra mini split heat pump is a solid choice for anyone needing efficient cooling and heating for spaces up to around 1,500 square feet. It offers good power with a max cooling capacity close to 24,200 BTUs and heating up to 27,300 BTUs, making it versatile for different seasons. Its 18 SEER2 rating means it’s energy efficient, helping keep electricity bills lower, especially with features like ECO+ mode and DC Inverter technology that adjusts power use smartly. Noise is quite low at 38 decibels, so it won’t be distracting in quiet rooms. Installation is flexible with the included 15-foot line set and wall mount kit, fitting well in places where traditional duct systems aren’t practical like basements or sunrooms.

Additional perks include air purification filters and multiple operation modes like dry and sleep mode for extra comfort. On the downside, it runs on 230 volts which may need compatible wiring if your home uses a different setup, and while the price reflects its quality, some might find it a bit costly compared to simpler units. Also, its size and split system nature mean it requires professional installation.

This product provides a reliable, energy-smart option for those wanting year-round climate control with added air quality benefits. It is best suited for medium to large rooms without existing ductwork.