10 Best Air Conditioners Air Conditioners 2025 in the United States

This Daikin 2-Zone CIRRA Series mini split air conditioner is designed to cool and heat two separate rooms efficiently, each with a 9,000 BTU capacity. Its cooling power is suitable for spaces up to around 800 square feet, making it a good choice for medium-sized homes or for targeting specific rooms like master bedrooms or living areas. The unit has a solid energy efficiency rating (SEER of 17), which means it will be relatively cost-effective to run compared to older or less efficient models. Noise-wise, it operates at around 51 decibels, which is about as loud as a quiet conversation, so it should be unobtrusive during use.

It comes with useful features such as anti-corrosion treatment for durability, automatic defrosting to handle cold weather, an Eco+ mode for energy savings, and a quick warming function for heating needs. The system includes installation kits and mounting brackets, which is convenient for setup. Additionally, the unit is fairly heavy and requires 230 volts, so professional installation is recommended.

This mini split system suits homeowners needing flexible, zoned temperature control with reliable performance and modern features, though it might be less suitable if you want a very quiet or ultra-highly energy-rated option.

The Daikin 18,000 BTU LV Series mini-split air conditioner is a solid choice if you're looking to cool or heat a medium-sized space up to about 1,000 square feet. It offers strong cooling power at 18,000 BTUs and even better heating capacity with 21,600 BTUs, which makes it a flexible option for year-round comfort. One of its standout features is its high energy efficiency, rated at 19.5 SEER2 and 12.7 EER2, meaning it can save you money on electricity compared to less efficient models. The unit runs quietly at around 37 decibels, so it won’t disturb daily activities or sleep. As a ductless mini-split, it’s ideal for homes or rooms where installing ducts is difficult or unwanted, such as sunrooms, basements, or garages. It also comes with a useful 15-foot installation kit and remote control, simplifying setup and daily use.

Advanced features like the Intelligent Eye sensor adjust airflow based on room occupancy, and the built-in air purifying filter improves indoor air quality. On the downside, this model requires a 230V electrical setup and isn’t Energy Star certified, which might be a consideration if you want the highest eco ratings. Also, the initial cost and installation may be higher than window units, but the efficiency and comfort benefits can justify this. This Daikin unit is excellent for those wanting efficient, quiet, and versatile heating and cooling without ductwork, making it especially suitable for renovation projects or additional living spaces.

The Goodman 3 Ton 14 Seer Package Air Conditioner GPC1436H41 offers a robust cooling capacity of 36,000 BTUs, making it suitable for larger spaces. Its Seasonal Energy Efficiency Ratio (SEER) of 14 ensures relatively good energy efficiency, which can help lower electricity bills. However, it is important to note that this model is discontinued by the manufacturer, which might make finding replacement parts or service more challenging in the future.

The unit operates on a corded electric power source and uses R 410A refrigerant, which is environmentally friendlier compared to older refrigerants. The unit's sizable dimensions and weight of 315 pounds might require professional installation. This model comes with a full parts warranty (provided installation by a licensed contractor), but labor and refrigerant costs are not covered.

If you prefer a unit with proven performance and don't mind the potential challenges of sourcing parts due to discontinuation, this model could be a strong contender for your cooling needs.