10 Best Window Units With Heat 2026 in the United States

The Whirlpool 18,000 BTU Window Air Conditioner with Supplemental Heat is designed for large spaces up to 1000 square feet. It offers significant cooling power with 18,000 BTUs and supplemental heating up to 10,600 BTUs, making it versatile for year-round use. It has an Energy Efficiency Ratio (EER) of 10.7, which is reasonably efficient, though it has only a 1-star Energy rating. The noise level is 56 dB, which is moderate and may be noticeable in quieter environments.

Installation is straightforward with the included mounting kit, though the unit's dimensions and weight (23.6 x 25.4 x 18.7 inches; 108.7 pounds) suggest assistance may be needed during setup. The unit includes an electronic control panel with a digital display, three cooling speeds, eco and sleep modes, a 24-hour programmable timer, and 8-way directional air louvers. The remote control adds convenience, and the reusable filter is easily washable to maintain air quality.

This Whirlpool unit is best suited for users looking for a powerful cooling and supplemental heating solution in larger rooms, with the convenience of programmable settings and remote control functionality. It receives high customer satisfaction with an average rating of 4.3 out of 5 stars from over 1,000 reviews, indicating generally positive user experiences.

The Whirlpool WHHW081AW is an 8,000 BTU window air conditioner that also provides 4,000 BTU of supplemental heating, making it suitable for spaces up to 350 square feet. This unit is effective in delivering cooling and heating but is not designed to be the primary heating source during the coldest months. It features an electronic control panel with a digital display, three cooling speeds, an eco mode, sleep mode, and a programmable 24-hour on/off timer, along with 8-way directional air louvers for customized comfort.

The included remote control allows you to adjust settings from a distance, which adds convenience. Installation is straightforward with the provided window mounting kit, which fits windows with a minimum height of 19.5 inches. The unit also includes a reusable filter that helps remove dust and contaminants from the air, which is easy to clean and maintain. However, the noise level is 52 dB, which might be a bit louder than some users prefer.

Additionally, the SEER rating of 10.9 and a single Energy Star rating indicates it is moderately energy-efficient but not the top in its class. This product is well-suited for those looking for a combination of cooling and supplemental heating in a single unit, especially in apartments, living rooms, or bedrooms.

The LG 23,000 BTU Window Air Conditioner with Heat is a powerful unit designed to serve large rooms up to 1,400 square feet, making it suitable for living rooms, dens, bedrooms, or offices. It offers both cooling and heating functions, making it versatile for year-round use. With a high cooling power of 23,000 BTU, it can efficiently cool large spaces. The heating capacity is an added bonus for cooler days, providing supplemental heat to maintain a comfortable temperature indoors.

Its Energy Efficiency Ratio (EER) is 11.3, which is decent but not the best in its class, and it is not Energy Star rated, meaning it might not be the most energy-efficient option available. However, it operates at a relatively low noise level of 50-51 dB, ensuring minimal disturbance during operation. The unit also features multiple fan speeds for customizable airflow, a remote control for convenience, and an Auto Restart function, which is handy in the event of power outages.

Installation might be a bit cumbersome due to its large size and weight (145 pounds), so assistance may be needed. Additional features include a filter light reminder, dehumidifier function, and a 1-year parts and labor warranty. This window unit is ideal for those who need a robust and versatile cooling and heating solution for larger rooms, but it might not be the best choice for energy-conscious buyers.