10 Best Window Units With Heat 2026 in the United States

The Midea Inverter Window Air Conditioner with Heat is a solid choice if you want a versatile window unit for both cooling and heating in rooms up to 550 square feet. It offers a strong 12,000 BTU cooling capacity combined with a heat pump function for mild winter warmth. Energy-wise, it’s efficient with a CEER of 13.3 and Energy Star certification, helping save on electricity without compromising comfort.

One of its standout features is its quiet operation at just 45 decibels, which is gentle enough for bedrooms or living spaces without being distracting. Installation fits common double-hung windows between 24 to 38.5 inches wide, and the unit includes a remote, installation kit, and smart controls via an app or voice assistants, making it easy to adjust settings from anywhere. The built-in dehumidifier and washable filter add extra convenience.

The heating function won’t work if outdoor temperatures drop below 41°F, so it’s best for mild cold weather rather than harsh winters. Also, at about 58 pounds, it’s a bit heavy, so installation may require some help. If you want an efficient, quiet, and smart-controlled window unit that handles both cooling and supplemental heating well, the Midea is a reliable option—just keep in mind its heating limits in colder climates.

The Midea MAW08HV1CWT EasyCool Smart Inverter Air Conditioner Window Unit with Heat is a versatile option designed for year-round comfort. With an 8,000 BTU rating, it effectively cools and heats rooms up to 350 square feet. The unit performs well in terms of energy efficiency with a SEER of 14.5, potentially saving up to 35% on energy costs compared to standard models. It is Energy Star certified, ensuring lower electricity bills while maintaining comfort. Noise levels are impressively low, with operation as quiet as 45 dBA, which is ideal for maintaining a peaceful environment, whether you're working, watching TV, or sleeping.

Installation is straightforward, fitting double-hung windows with specific dimensions, and the included installation kit simplifies the process. Smart features enhance usability, including WiFi connectivity, compatibility with voice assistants Alexa and Google Assistant, and control via the SmartHome App. These features make it convenient to operate from anywhere.

However, it’s important to note that the heating function is supplementary and works best when outdoor temperatures are above 41°F, which might limit its use in colder climates. Also, at 56 pounds, the unit might be a bit heavy for some users to install by themselves. The remote control and washable filter are practical additions, contributing to ease of use and maintenance. For those looking for a smart, quiet, and energy-efficient unit that offers both cooling and heating, the Midea MAW08HV1CWT is a strong contender.

The Keystone 23,200 BTU Window-Wall Air Conditioner is designed for large rooms up to 1,500 square feet, making it a good choice if you need strong cooling power. It also includes 16,000 BTU of supplemental heat, which can help warm your space when temperatures are mild, but it shouldn't be relied on as your main heat source. With a Seasonal Energy Efficiency Ratio (SEER) of 9.4, this unit is reasonably efficient and offers energy-saving modes like 'Energy Saver' and 'Sleep' to help reduce electricity costs. Noise level is moderate at 56.3 decibels, which is typical for units of this size—noticeable but not overly disruptive.

Installation is versatile as it fits both window and wall spaces, saving floor space and coming with a window installation kit; it requires a minimum window height of 19.5 inches and is fairly large (about 25 by 24 by 18 inches), so make sure your space can accommodate it. The included smart remote control is a convenient feature that measures room temperature and adjusts settings automatically every few minutes, enhancing comfort without constant manual adjustments. Additional perks are a built-in dehumidifier to reduce humidity, a filter light reminder to prompt regular maintenance, and a 4-way air swing for better airflow distribution.

This is a heavy unit (121 pounds), making installation potentially challenging without help. Also, while the heating feature is useful for mild weather, it won’t replace a dedicated heating system in colder climates. If you need a reliable, multi-function window or wall unit for cooling large spaces with occasional heating, this Keystone model offers solid performance with helpful features, but be prepared for its size and weight during installation.