10 Best Air Conditioner Window 2025 in the United States

The LG 23,000 BTU window air conditioner with heat is a strong choice for cooling and heating larger rooms up to 1400 square feet, like living rooms or offices. With its high cooling capacity, it can handle medium to large spaces effectively. The unit operates quietly at about 50-51 decibels, which is roughly the noise level of a normal conversation, so it won’t disturb your work or sleep. It also includes a heat option, making it useful year-round, and an auto-restart feature that turns it back on after a power outage, which is convenient.

Installation requires a 230-volt power source and the unit is quite large and heavy (over 140 pounds), so it might need a sturdy window and some effort to set up. The Energy Efficiency Ratio (EER) is 11.3, which is decent but not top-tier for saving on electricity bills. Additional helpful features include multiple fan speeds, a dehumidifier to reduce moisture, and a remote control for easy operation. It also has a filter light reminder to prompt maintenance.

The unit is bulky and may not fit all window sizes easily, and it comes with only a one-year warranty. For those seeking a reliable, powerful air conditioner that also heats your space and can accommodate its size and moderate energy use, this LG model is a practical option.

The Amazon Basics 5000-BTU Window Air Conditioner is designed for small rooms up to 150 square feet, making it a good choice for bedrooms, home offices, or compact living areas. Its 5000 BTU cooling capacity is sufficient for these spaces, offering cool air without overloading your electricity use. With an Energy Efficiency Ratio (EER) reflected by its SEER of 14, it provides decent efficiency to help keep energy costs reasonable. Noise level at 56 dB is relatively quiet for an air conditioner, so it won't disturb sleep or work much, though it’s not the absolute quietest model available. Installation is straightforward for anyone with basic DIY skills—it fits standard windows (23 to 36 inches wide) and comes with an adjustable kit, but you’ll need a screwdriver on hand. The unit is compact and lightweight enough to handle without too much trouble.

Additional features include a washable filter that traps dust and allergens, helping improve air quality, plus customizable comfort settings like 7 temperature options, 2 fan speeds, and direction control to tailor airflow. It also offers a fan-only mode and a dehumidifying function, adding versatility beyond just cooling. However, this AC is best suited for small spaces and might struggle to cool larger rooms effectively. Also, mechanical controls might feel less modern compared to digital interfaces.

This model is a practical, affordable option if you want a simple, effective air conditioner for a small room without advanced smart features.

The Midea MAW08HV1CWT EasyCool Smart Inverter Air Conditioner Window Unit with Heat offers a versatile solution for multi-season comfort. With a cooling capacity of 8,000 BTUs, it is ideal for rooms up to 350 square feet, providing efficient cooling in the summer and supplemental heating when the outside temperature is above 41°F. This unit stands out with its energy efficiency thanks to its variable-speed inverter technology, boasting an impressive SEER of 14.5 and potential energy savings of up to 35%. Additionally, it operates quietly at just 45 dB, making it suitable for bedrooms or home offices where low noise is essential.

Installation is straightforward, fitting double-hung windows with specific dimensions, and an installation kit is included to assist users. The smart technology integration, including WiFi capability and compatibility with Alexa and Google Assistant, adds convenience, allowing remote control via an app or voice commands. The unit also features an LED display, multiple modes and speeds, a 24-hour timer, and an ECO energy saver mode.

Despite its strengths, the unit has some limitations. The heating function only works effectively when the outside temperature is above 41°F, potentially limiting its usefulness in colder climates. Additionally, while the unit is relatively heavy at 56 pounds, it may require additional support during installation. The Midea MAW08HV1CWT is a well-rounded air conditioner window unit with heat, offering strong energy efficiency, low noise levels, and modern smart features, making it a good choice for users seeking comfort and convenience throughout the year.