Air Conditioning

Top Picks for Sliding Window Air Conditioners: Your Comprehensive Guide

Best Air Conditioners for Sliding Windows

When it comes to selecting the best air conditioner for sliding windows, several factors play a crucial role in making an informed decision. Whether you’re leaning towards a mounted or portable option, considering room size, BTU ratings, energy efficiency (EER), and airflow capabilities (CFM) is essential. This guide highlights some top-performing air conditioners, each catering to specific needs. Dive in to find the perfect match for your requirements.

1. Honeywell MN10CESWW Sliding Window Air Conditioner:

– Top Pick for Sash Windows

– The Honeywell MN10CESWW stands out as an excellent choice for those dealing with sash windows. Offering 10,000 BTUs, it efficiently cools rooms of 350-450 square feet. While its 11.1 SEER rating denotes energy efficiency, the 174 CFM may be considered slightly low. However, its user-friendly features, including three fan and cooling speeds, a digital touch control panel, and a washable filter, make it a reliable option.

2. Frigidaire FFRS1022R1 Sliding Window Air Conditioner:

– Powerful and Efficient

– Frigidaire’s FFRS1022R1, a 10,000 BTU air conditioner, impressively covers rooms up to 450 square feet. With a notable 10.4 EER and a robust 323 CFM, it efficiently moves air while offering three cooling and fan speeds, along with a dehumidification mode. Despite a noise level of 61 decibels at full speed, its performance and features make it a top contender.

3. PerfectAire Sliding Window Air Conditioner:

– Versatile Installation Options

– PerfectAire’s vertical air conditioner is designed for installation through a window or wall, providing versatility in placement. With 10,000 BTUs, it suits rooms of 400-450 square feet. Boasting an EER of 10.4, it comes with a Follow Me feature, offering temperature sensing at the remote location. While larger in size, it compensates with three fan speeds, three cooling speeds, and multiple modes.

4. Koldfront CAC8000W Sliding Window Air Conditioner:

– Energy-Efficient Cooling Solution

– Prioritizing energy efficiency, the Koldfront CAC8000W boasts an EER of 11 and 8,000 BTUs, suitable for spaces of 300-350 square feet. With an impressive Energy Saver and Sleep mode, it maintains cooling without excessive energy consumption. Operating at a maximum of 55 decibels, it stands out as one of the quieter options in its category.

5. Midea KAW10C1AWT Sliding Window Air Conditioner:

– High Energy Efficiency

– The Midea KAW10C1AWT shines with an outstanding EER of 11.4 and a cooling capacity of 10,000 BTUs for rooms up to 450 square feet. Featuring four-way airflow, remote control, and multiple modes, it offers a balance of performance and convenience. The single cooling speed is complemented by three fan speeds, ensuring customizable comfort.

6. Arctic King Sliding Window Air Conditioner:

– Efficient and Feature-Packed

– The Arctic King AKSC10CR51, with 10,000 BTUs, efficiently cools rooms up to 450 square feet. While specific technical specifications are not provided, it compensates with a comprehensive set of features, including three fan speeds, three cooling speeds, a remote control, and washable filters. Despite installation challenges noted during research, its functionality makes it a reliable choice.

7. LG LP0817WSR Air Conditioner:

– Portable Option for Sash Windows

– For smaller rooms and sash windows, the LG LP0817WSR is a portable solution with 8,000 BTUs, suitable for up to 200 square feet. With an EER of 8.2, it provides moderate energy efficiency, and its 220 CFM ensures effective airflow. The modern design, LCD thermometer on the control panel, and 3-in-1 functionality (air conditioner, dehumidifier, fan) contribute to its appeal.


Explore the features, compare specifications, and select the air conditioner that aligns with your specific needs. Whether you prioritize energy efficiency, versatility in installation, or a portable option for smaller spaces, this guide has you covered.

Disclosure: We may get commissions for purchases made through links in this post.

About the author


I am Ben , a seasoned HVAC specialist with over 6 of experience in the HVAC industry. I holds HVAC Certification and has a proven track record in providing expert advice on HVAC systems.