10 Best Heat And Cool Window Units 2026 in the United States

The LG 18,000 BTU Heat and Cool Window Air Conditioner with WiFi Controls is a versatile unit designed for medium to large rooms up to 1,000 sq. ft. It offers both heating and cooling functions, making it suitable for year-round use. One of its standout features is the LG ThinQ technology, which allows you to control the unit remotely via your phone or through voice commands with Amazon Alexa and Google Assistant. This adds a layer of convenience, allowing you to adjust settings from anywhere.

The unit has customizable cooling and heating options with 2 speeds for both, along with a 24-hour timer to create a personalized schedule. Additionally, the auto restart feature ensures your comfort isn't disrupted by power outages, as the unit will resume operation automatically. Installation should be straightforward with the included window installation kit, and its dimensions are relatively standard for window units, though its weight (126.5 pounds) might require some assistance to install.

In terms of energy efficiency, the unit has an EER of 11.1, which is decent but not the highest in its class, and it does not have an Energy Star rating. Noise levels are rated at 57 dB, which is moderate; it may not be the quietest unit but is by no means excessively loud. Additional features include a remote control, filter light reminder, and dehumidifying function. This air conditioner is ideal for someone looking for a reliable, year-round heating and cooling solution with modern smart features.

The Whirlpool 18,000 BTU 230V Window Air Conditioner with Supplemental Heat is designed for large rooms up to 1000 square feet, making it suitable for apartments, living rooms, and bedrooms. It delivers strong cooling power with 18,000 BTU and supplemental heating of 10,600 BTU, although the heating function is not intended to be the primary heat source during the coldest months and may not be sufficient in extremely cold weather.

With an Energy Efficiency Ratio (EER) of 10.7, it performs reasonably well in terms of energy consumption, though it is not the highest in energy efficiency when compared to other options available. The unit operates at a noise level of 56 dB, which is relatively quiet and should not cause significant disruption. The electronic control panel is user-friendly with a digital display, various modes including eco and sleep, and a programmable 24-hour timer. The 8-way directional air louvers ensure that air is distributed evenly throughout the room.

Installation is simplified with the included window mounting kit, although the unit's weight of 108.7 pounds might require some assistance. Additional features include a reusable, washable dust filter, and a remote control for convenient operation from a distance. Potential buyers should assess whether the EER and supplemental heating capabilities meet their specific needs. The Whirlpool air conditioner includes a 1-year limited warranty, providing some peace of mind for new users.

The Midea MAW08HV1CWT EasyCool Smart Inverter Air Conditioner is a versatile window unit that excels in both cooling and heating, making it suitable for year-round comfort in larger rooms up to 350 square feet. With a cooling capacity of 8,000 BTU, it efficiently provides relief during hot summer days while also offering supplemental heating when temperatures drop, though the heating function is effective only above 41°F.

One of the standout features is the energy efficiency; it uses inverter technology which not only cools or heats quickly but also helps save up to 35% on energy costs compared to standard units, earning its Energy Star certification. This makes it a good choice for those looking to reduce their electricity bills without sacrificing comfort.

The noise level is impressively low at 45 dBA, making it ideal for bedrooms or quiet spaces. Users can enjoy peace during calls, TV time, or sleep without disturbance from the unit. Additionally, it offers multiple modes, including a dehumidifier function, and is Wi-Fi enabled for remote control via a smartphone app or voice commands with Alexa and Google Assistant.

However, potential drawbacks include its installation requirements; it fits only in double-hung windows with specific dimensions, which may limit where it can be installed in some homes. While the unit is compact, some users might find the need for professional installation challenging, especially if they’re not handy.

The Midea MAW08HV1CWT is a strong contender for those needing a reliable heat-and-cool window unit with excellent energy efficiency and low noise. It’s essential to ensure it fits your window type and size before purchasing.