10 Best Air Conditioners 2026 in the United States

The TOSOT GO Cool RV Air Conditioner is a solid choice if you need a rooftop AC with both cooling and heating for your RV. Its 15,000 BTU cooling capacity makes it well suited for medium to large RVs, roughly 16 to 24 feet long or up to 600 square feet inside. It also offers 12,000 BTU heating, which is great for staying comfortable in colder weather. The unit runs at a reasonable noise level of 52 dB, which is about the sound of a normal conversation, so it shouldn't disturb your peace while camping. With an Energy Efficiency Ratio (EER) of 8.5, it provides decent energy savings, though not the highest efficiency you might find in some home air conditioners.

This model is a non-ducted rooftop unit, meaning it’s designed for RVs without internal ductwork, and installation fits standard 14.25-inch vent openings, making it compatible with many RV models. A standout feature is the WiFi connectivity and remote control via the Gree+ app, allowing you to adjust settings conveniently from your phone, which is especially handy on the road. It also works reliably in extreme outdoor temperatures ranging from 23°F to 115°F, making it versatile for various climates.

There are some considerations to keep in mind: it’s a bit bulky with its dimensions and uses 110 volts, so you’ll want to ensure your RV’s electrical system supports it. The SEER rating is not specified, suggesting moderate seasonal efficiency compared to other models. The separate shipment of parts might complicate the initial setup slightly, and it’s not compatible with RVs that have existing duct systems. This TOSOT unit is a dependable, feature-rich choice for RV owners who want both heating and cooling with smart controls, but you should confirm your RV’s electrical compatibility and duct setup before buying.

The Daikin 18,000 BTU 2-Zone Mini Split is designed to provide versatile cooling and heating for two separate areas, making it ideal for homes needing personalized temperature control in different rooms without ductwork. Its cooling capacity of around 18,000 BTU (split into 9,000 and 15,000 BTU zones) is well-suited for spaces up to roughly 1,150 square feet, handling moderate-sized rooms efficiently. The system boasts a high Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER of 21), which means it uses electricity efficiently—helping reduce energy bills. Operating quietly at just 24 decibels, it won’t disturb your daily life or sleep, a definite plus for bedrooms or living areas.

This mini split uses R-32 refrigerant, which is better for the environment compared to older types. Additional perks include smartphone and voice control compatibility, a Titanium Air Purifying Filter for improved air quality, and reliable heating and cooling even in temperatures as low as 5°F or as high as 115°F. Some downsides include that it’s not Energy Star rated, which some users might expect for energy-conscious purchases, and the complexity of installation usually requires professional help, especially since it’s a multi-zone system. Also, while it includes a 15-foot installation kit, longer distances might need extra accessories.

This product suits homeowners looking for a quiet, efficient, and flexible cooling and heating solution with smart features, particularly in situations where traditional ducted systems aren’t practical.

The Senville LETO Series Mini Split Air Conditioner Heat Pump offers a substantial cooling capacity of 12,000 BTU, making it suitable for cooling medium-sized rooms. One of its standout features is the high Seasonal Energy Efficiency Ratio (SEER) of 20.8, which indicates it operates efficiently and could help reduce electricity bills. The inclusion of a DC Inverter further enhances its energy efficiency and performance consistency.

This model supports voice control through Alexa, allowing for convenient adjustments via app or voice commands from anywhere, which could be appealing to tech-savvy users or those who enjoy smart home integration. Additionally, it serves multiple roles as an air conditioner, heat pump, dehumidifier, and fan, making it versatile for year-round use. The unit operates relatively quietly, which is ideal for bedrooms and living areas where noise can be disruptive.

It does require professional installation, which might add to the initial cost. Although it comes with a comprehensive 5-year warranty on parts and the compressor, labor costs for installation are not covered. The product does not meet Energy Star compliance, which might be a consideration for eco-conscious buyers. Its compact and stylish design allows it to blend into both residential and commercial settings without compromising aesthetics. The package includes necessary installation components, making it convenient, but the pre-loaded refrigerant accommodates only up to 25 ft, which could limit installation flexibility in larger spaces.