10 Best Window Ac Unit For Sliding Window 2025 in the United States

The Midea MAW08V1QWT is an 8,000 BTU window air conditioner designed for single or double-hung windows between 22 to 36 inches wide and at least 13.75 inches high, making it suitable for many sliding windows. Its standout feature is the unique U-shaped design that allows the window to stay partially open, so you can enjoy fresh air and maintain your view. This model runs very quietly at just 32 decibels, thanks to its inverter technology, making it one of the quietest window AC units available.

It’s also energy efficient, with a SEER rating of 15 and ENERGY STAR certification, which means it uses about 35% less power than traditional models—good news for your electricity bill. The unit supports smart controls through Wi-Fi, letting you operate it remotely via an app or voice assistants like Alexa and Google Assistant, adding convenience. Installation is straightforward with a quick-snap bracket included, but the unit is somewhat heavy at 55.6 pounds, so you might want some help during setup.

While it cools rooms up to around 350 square feet effectively, it may struggle in larger spaces. The noise level and energy savings are impressive, but the price and weight could be a consideration for some buyers. This Midea AC is a solid choice if you want a quiet, energy-efficient window unit that doesn’t block your window view and offers smart features, especially suited for small to medium rooms with sliding windows.

The GE 5100 BTU Window Air Conditioner is a solid choice for cooling small rooms up to 150 square feet, such as bedrooms, studios, or small offices. Its capacity is well suited for these spaces, providing efficient cooling without excessive power. Installation is straightforward with the included EZ Mount kit, designed for double-hung windows that fit within the specified size range.

The unit features two cooling modes and fan speeds, along with 10 temperature settings, giving you flexible control over your comfort. Noise-wise, it operates at about 56 dB, which is moderately quiet and generally suitable for nighttime use, though some might find it noticeable if very sensitive to sound. The energy efficiency is on the lower side, with a Seasonal Energy Efficiency Ratio (SEER) of 2.6 and a 1-star energy rating, meaning it might consume more electricity compared to newer or higher-rated models.

The washable and removable filter makes maintenance simple, helping to keep the unit running effectively over time. The compact size and manageable weight (36 pounds) make it practical for typical window installation. While it lacks some advanced features found in pricier models, such as remote control or smart connectivity, it covers the basics reliably. This unit suits those seeking an affordable, easy-to-install window AC specifically for smaller rooms and who are willing to accept somewhat higher energy usage.

The Midea 5,000 BTU EasyCool Small Window Air Conditioner is designed for cooling small spaces up to 150 square feet, making it suitable for bedrooms, living rooms, or home offices. It offers 7 temperature settings, 2 cooling speeds, and 2 fan-only speeds with a 2-way air direction to customize your cooling experience. This unit has an energy efficiency ratio (EER) of 11.0, which is decent and can help reduce energy costs over time. The noise level of 57 dB is relatively quiet, comparable to a household refrigerator, thus ensuring it won't disturb your peace.

The mechanical controls are straightforward to use, and it comes with a removable, reusable air filter for easy maintenance. The window compatibility is quite versatile, fitting windows between 23” to 36” wide and at least 13” high, and it includes all the necessary mounting accessories for installation. However, a screwdriver is required for setup, and possibly pilot holes depending on your window frame. Additionally, it uses the R410A refrigerant which is environmentally friendly.

One potential drawback is that it may not be suitable for larger spaces and might struggle in areas exceeding its recommended 150 sq. ft. The unit comes with a 1-year parts and labor warranty. For small room cooling needs, this Midea model is an efficient, budget-friendly option.