10 Best 115 Volt Air Conditioners 2025 in the United States

The Midea 12,000 BTU Smart Inverter Air Conditioner is a versatile window unit designed to cool spaces up to 550 square feet, making it a good choice for larger rooms or small apartments. It offers strong cooling power with a seasonal energy efficiency ratio (SEER) of 13.3, which means it runs more efficiently than many standard models and can help save on electricity bills. The inverter technology allows the unit to adjust its cooling speed, providing consistent comfort while using less energy. It also has a heating function and dehumidifier, which adds value by offering year-round use, although the heat feature won’t work if the outside temperature drops below 41°F.

Operating noise is relatively low at around 45 to 58 decibels, so it won’t be very disruptive whether you’re working, watching TV, or sleeping. Installation is straightforward for double-hung windows within the specified size range, and the unit comes with an installation kit and remote control. Additional smart features include WiFi connectivity and voice control through Alexa or Google Assistant, which is handy for modern homes.

On the downside, the unit weighs 58 pounds, which can make installation a bit challenging for one person. Also, while the noise level is low for an AC, some users might still find it noticeable during quiet nights. The heat pump function’s limitation in cold weather means it’s not a complete replacement for a dedicated heater in colder climates. This model effectively blends efficiency, multiple functions, and smart controls, making it a solid option for those wanting more than just basic cooling from a window air conditioner.

The LG LW1424RD is a robust window air conditioner with a cooling power of 14,000 BTU, making it suitable for cooling medium-sized rooms of up to 800 square feet. Its dimensions are compact at 23.63” W x 15” H x 22.2” D, ensuring it fits well in most windows. One of its key strengths is the quiet operation, with a noise level of 56 dB, making it less disruptive compared to other models.

The unit also features electronic controls and three cooling and fan speeds, which can be easily adjusted using the included remote control. The Auto Restart function is particularly handy, as it automatically turns the unit back on after a power failure, ensuring consistent cooling. Additionally, the 24-Hour Digital On/Off Timer allows users to set a cooling schedule for convenience and energy efficiency. The device includes a slide-out washable filter, which is easy to maintain and comes with a Check Filter alert to remind you when it needs cleaning.

However, the unit's Energy Efficiency Ratio (EER) of 11.2 is decent but not the highest available, and it does not have an Energy Star rating, meaning there are more energy-efficient options out there. At 82 pounds, it's relatively heavy, which might make installation a bit cumbersome without assistance. The air conditioner also includes a dehumidifying feature, which can be beneficial in humid climates. The LG LW1424RD is a solid option for those needing efficient cooling for a medium-sized room, though there are more energy-efficient models available if that is a primary concern.

The Frigidaire 10,000 BTU Window Air Conditioner is designed to cool rooms up to about 450 square feet, making it a solid choice for medium-sized living spaces. With a cooling power of 10,000 BTUs, it delivers sufficient cooling for most average rooms. It operates quietly at around 54 decibels, which means it won't be too noisy or disruptive—good for bedrooms or living rooms where a peaceful environment is important. The unit runs on standard 115 volts and is intended for window installation, including a window kit for easier setup.

Energy efficiency is decent with a Seasonal Energy Efficiency Ratio (SEER) of 10.9, and while it’s not Energy Star certified, it offers energy-saving modes like Eco and Sleep that can help reduce electricity use by optimizing cooling and temperature while you sleep or when you want to save power. The remote control and 24-hour timer add convenience, letting you adjust settings without getting up and schedule when the AC turns on or off.

Maintenance is straightforward with washable dust filters and filter-clean reminders, which can help keep the unit running efficiently over time. The customizable 6-way directional airflow and three fan speeds allow you to fine-tune the cooling to your preference. An added Dry Mode removes excess humidity, making the room feel more comfortable, especially in muggy weather. The noise level, though relatively quiet for an air conditioner, might still be noticeable in very quiet rooms. It also lacks Energy Star certification, which could mean it’s not as energy-efficient as some competing models. The warranty is limited to one year, which is fairly standard but not extensive. This Frigidaire model is a dependable and easy-to-use window air conditioner best suited for medium rooms where quiet operation and flexible cooling settings are valued, though users who prioritize maximum energy efficiency might look elsewhere.