10 Best Air Conditioners 2025 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 LG 24,500 BTU Smart Window Air Conditioner is a strong option for cooling large rooms up to about 1,560 square feet, making it suitable for spacious bedrooms, living rooms, or small apartments. Its high cooling capacity means it can handle bigger spaces better than many smaller units. The unit is equipped with LG ThinQ technology, allowing you to control it remotely via your smartphone, and it works with voice assistants like Amazon Alexa and Google Assistant, which is convenient if you want smart home integration. It offers 3 fan speeds and a 24-hour timer, giving you flexibility to customize cooling and save energy when it's not needed.

Noise levels are generally reasonable, around 61 dB, which is about as loud as a normal conversation; the lowest mode can run quieter at 50 dB, so it won't be too disruptive during sleep or work. While the Seasonal Energy Efficiency Ratio (SEER) is 10.3, which is decent but not top-tier, this means it balances performance with energy use moderately well but might not be the best choice if you want to minimize electricity bills aggressively. The window installation kit and remote control come included, making setup straightforward. A minor downside is its size and weight (132 pounds), so installation may require some help.

It also includes helpful features such as a filter reminder light and automatic restart after power failures, adding convenience. This model serves well as a smart window AC for those needing powerful cooling with modern controls, but if noise sensitivity or the absolute best energy efficiency is your priority, you might want to explore other options.