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HomeElectronics5 Best Casement Window Air Conditioner Reviews in 2022

5 Best Casement Window Air Conditioner Reviews in 2022


Air conditioners are slowly becoming more than just a luxury item. In fact, air conditioners are more than a necessity in hotter regions where the temperature rises up to an unbearable level. At one point, your living room or bedroom will be highly comfortable and you won’t be able to rest in your house until you install a decent air conditioner.

And if you want a satisfying performance, it is a good idea to go with casement window air conditioners. These are high-capacity air conditioners that are a bit taller than traditional window ACs. Here are some important qualities of an AC in general that you should be aware of.

  • Power Requirement: Just like every other electrical device, air conditioners also have a certain power requirement rating which needs to be satisfied with the input to get the best performance from the unit. If you are choosing a high-voltage air conditioner, you need to connect the unit to a similarly high-powered AC input socket to operate it.
  • Air Conditioner Capacity: The capacity of the air conditioner should also be kept in mind while you are buying one. The capacity of the unit should be selected based on the room size and the load on the unit after installation. The cloning capacity of an AC is available in a BTU unit where higher BTU ACs offer a better cooling performance. You can also get an idea about an AC’s cooling performance by its coverage area.
  • Energy Efficiency: The energy efficiency of an air conditioner is basically the relation between the output of the air conditioner compared to its input energy requirements. As you can imagine, the energy efficiency of an AC varies from unit to unit due to changes in internal components and their capacity. You can also make your purchase based on ratings provided by organizations like Energy-Star.

Today, we will go through a handful of the best choices we have collected for a casement window air conditioner. Since these options aren’t as popular as standard options like window ACs or split ACs, it might be a little difficult to find the perfect option from a reliable brand. But instead of browsing the market for days, you can check out our picks and refer to our Buying Guide to find out the best casement window air conditioner right here.

Best Casement Window Air Conditioner 2022

Best Casement Window Air Conditioner Reviews

1. Midea EasyCool Window Air Conditioner

Midea EasyCool Window Air Conditioner

We will start off our list with the most affordable brand for a window AC. This AC is made by Midea which is known to provide high-performance accessories under budget.

Our 1st pick for the best window AC also happens to be the cheapest option you can find in the market right now for a window AC. The Midea EasyCool Window Air Conditioner is a highly compact and affordable alternative for a window AC. But, it still features 8000 BTU cooling capacity which makes it suitable for up to 350 sq. ft. of room.

This is also a 3-in-1 model with operating modes that you can adjust based on your requirements. There is also a built-in dehumidifier present on the Midea EasyCool Window Air Conditioner along with a 3-speed adjustable high-performance fan. Unlike most other affordable options, the Midea EasyCool Window Air Conditioner is certified by Energy Star which ensures the energy efficiency of the unit. And similar to most other premium options, it also has a year of warranty.

Best Features

  • 8000 BTU cooling capacity
  • Suitable for up to 350 sq. ft. area
  • Warranted for 1 year after the date of purchase
  • 3-in-1 unit with 3 operating modes


  • Best option available under this price range
  • Offers 3 functionalities in 1 unit
  • Most compact option on this list


  • Not the best choice for tall casement windows

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2. FRIGIDAIRE FFRS1022R1 115-volt Slider

FRIGIDAIRE FFRS1022R1 115-volt Slider

When it comes to casement windows, you will have to buy an AC that is specifically designed for such windows. Therefore, we are bringing our next pick from FRIGIDAIRE which offers many options for casement window ACs.

In 2nd place, we have the FRIGIDAIRE FFRS1022R1. This is one of the high-capacity options that we have chosen for this list since it features 10000 BTU cooling capacity. Ultimately, it also increases the effective coverage area of the FRIGIDAIRE FFRS1022R1 up to 450 sq. ft. it also offers dehumidification functionality with up to 3.4 pints of moisture removal every hour.

Coming to the accessibility of the unit, the FRIGIDAIRE FFRS1022R1 offers multi-speed electronic controls via a dedicated remote control so that you can change its settings from anywhere. It also includes a 24-hours timer function that lets you automate the performance of the machine without any problem. Other modes on the FRIGIDAIRE FFRS1022R1 include an auto-cool, sleep mode, and energy saver mode for best energy efficiency.

Best Features

  • 10000 BTU cooling capacity
  • Suitable for up to 450 sq. ft. area
  • Warranted for 1 year after the date of purchase
  • Offers up to 3.4 pints of dehumidification per hour


  • Great option for large rooms
  • Best suited for casement windows
  • Many operation modes are introduced


  • Short warranty period despite the premium price range

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3. Koldfront CAC8000W 115V Casement Air Conditioner

Koldfront CAC8000W

Koldfront is also offering a premium range casement window air conditioner on this list. However, it is the most reliable brand when it comes to long-term applications.

The 3rd position on our list of the best casement window air conditioners is secured by the Koldfront CAC8000W casement window air conditioner. This is a standard 8000 BTU vertical window air conditioner that can suffice for any room within a 300 to 350 sq. ft. area. If you are concerned about its compatibility with the window in your room, just make sure that the window is between 15½ inches to 16¼ inches for width and 21¼ inches to 39 7/16 inches for height.

The functionalities of the Koldfront CAC8000W are also very attractive. It has a digital display inclusive of LED indicators which will tell you the status of the air conditioner as well as the current temperature level. There are multiple modes to choose from such as dehumidification, sleep mode, etc. along with 4 adjustable fan speeds. The included remote of the Koldfront CAC8000W can control the parameters of this unit from up to 16 ft. away.

Best Features

  • 8000 BTU cooling capacity
  • Suitable for up to 350 sq. ft. area
  • Warranted for 2 years after the date of purchase
  • A dedicated remote is included


  • Suitable for 300 to 350 sq. ft. area
  • Comes with a digital display and LED indicators
  • Rated for 11.0 energy efficiency ratio


  • Capacity should have been higher

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4. PerfectAire Slider Air Conditioner

PerfectAire Slider Air Conditioner

If you want a high-performance casement window air conditioner, then the following options will be right for you. Out of which, the AC made by PerfectAire is a well-known choice for home as well as offices.

The PerfectAire Air Conditioner is a high-power AC that can be a suitable choice for both slider and casement windows. It features 10000 BTU cooling capacity and allows temperature adjustment within the range 62°F – 86°F. Since its cooling capacity is quite high, it can maintain the temperature in rooms that have a 400 to 450 sq. ft. area. If your casement window is below 16¼ x 39½ inches in size, this unit can be the perfect match.

Coming to its functionalities, the PerfectAire Air Conditioner also offers you 3-speed control options so that you can maintain the performance while keeping an eye on its energy consumption. And to offer total room coverage, the PerfectAire Air Conditioner also comes with remote. This is a special remote since it features portable thermostat technology that allows total room coverage.

Best Features

  • 10000 BTU cooling capacity
  • Suitable for up to 450 sq. ft. area
  • Warranted for 1 year after the date of purchase
  • Special remote with portable thermostat technology


  • 62°F – 86°F temperature range
  • It can cover a pretty large area
  • 3-speed control for better performance


  • Warranty period should have been longer

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5. Keystone Casement Window Conditioner

Keystone Casement Window Conditioner

Our last pick for the best casement window AC is coming from Keystone, a highly versatile brand that designs and develops lots of cooling accessories like air conditioners, dehumidifiers, refrigerators, coolers, and much more.

Last but not the least, we have the Keystone Window Conditioner. Just like our last pick, the Keystone Window Conditioner is also suitable for both casement and slider windows. It also has a 10000 BTU capacity which ensures a coverage area of up to 450 sq. ft. It has 3 speed fan control options along with 4-way air direction control which is usually missing from casement window ACs. You will also find a sleep mode on the Keystone Window Conditioner, allowing you to conserve energy while using the machine at night.

As for its dehumidification performance, you can expect about 11 pints of moisture removal from the air every hour, keeping the air cold as well as dry while it is active. You also don’t have to worry about the maintenance procedure of the Keystone Window Conditioner since it will alert you when filter cleaning is required. Similar to most other options on this list, the Keystone Window Conditioner also has a year of warranty from its date of purchase.

Best Features

  • 10000 BTU cooling capacity
  • Suitable for up to 450 sq. ft. area
  • Warranted for 1 year after the date of purchase
  • Up to 11 pints of moisture removal per hour


  • High capacity casement window AC
  • 3 fan speeds with 4-way air direction control
  • Clean filter alert for timely maintenance


Buy Now From Amazon

Buying Guide For The Best Casement Window Air Conditioner

When it comes to temperature maintenance and air quality assurance, there are a lot of accessories you can buy for your house or office. Out of which, air conditioners are the best options since they are pretty much all-in-one devices for such tasks. A premium quality air conditioner can filter the surrounding air in your room, maintain it at a certain temperature level, and even remove humidity for the best experience.

Even in ACs, there are a lot of subcategories like split ACs, window ACs, casement window ACs, portable ACs, etc. Since you have already decided to get a casement window AC, you should know some of the most important qualities of a casement window AC mentioned in this buying guide. Once you go through our buying guide, you can easily decide which option is right for you and why you should prefer a certain quality over another in a particular budget range.

1. BTU Capacity

Starting with a technical specification, you will find a certain BTU rating on any casement window air conditioner that is available out there. On our list, we have also specified the BTU rating of every casement window air conditioner that we have chosen for our list. BTU is short for British Thermal Unit.

This is a special measurement unit that tells you about the heating as well as cooling capacity of a machine. To put it in simpler words, 1 BTU represents the energy needed to change the temperature of a room by 1 degree Fahrenheit. From that, you can easily guess the BTU rating required for the casement air conditioner you are going to buy. To make it even simpler, just keep in mind that 20 BTU is the base requirement to cool down a single square foot area. Thus, you will need a 2000 BTU AC to maintain a 100 sq. ft. room.

2. Noise Level

Noise is something you can’t get rid of when it comes to standard air coolers or fans like table fans or box fans. But in case of air conditioners, the noise levels can be contained to a bare minimum level which are pretty much unnoticeable by the user. In an air conditioner, the only sound you can hear is the operating sound of a compressor since it has moving parts that push the refrigerant forward in the system.

If you are going to use the casement window air conditioner in your bedroom or living room, you will obviously have to select the one that offers the quietest operation in comparison to others. A high level of noise will create discomfort in the room, even if the air quality and temperature are at a comfortable level. Usually, the noise problem is unavoidable for large-capacity casement window air conditioners.

3. Energy Efficiency

The energy efficiency of a casement window air conditioner is basically how efficient it is in terms of energy consumption. Buying a highly energy-efficient unit not only benefits the user in terms of running costs but also the environment since it will utilize a lesser amount of energy for the same performance.

There are many organizations that provide a certain energy efficiency rating to air conditioners to ensure its performance in the future. If the energy efficiency rating on a particular air conditioner is high, it means that it is built with high-quality components with high energy efficiency. Naturally, such options will be comparatively expensive due to the additional manufacturing cost. On the other hand, cheaper options are rated with a low energy efficiency rating. Even though the initial investment on such devices is low, they won’t be as affordable in the long run if you are using one for multiple hours every day.

4. Reliability

The reliability of an electronic device is probably the most important factor, especially for home appliances which have an effect on your living conditions and health. When it comes to ACs, there are a lot of small components installed inside the unit to offer the air conditioning feature. With an increased number of parts, there are also increased chances of failure.

There can be a lot of reasons behind the failure of an air conditioner such as improper installation, power surge, frequency power cuts, improper power supply, etc. To stay safe from such anomalies and make sure that your casement window AC can survive these factors, simply check if it’s warranted against such problems. Almost all manufacturers offer built-in safety circuits designed to prevent damage to the major components of an AC from such events. If you are getting a long warranty period on your casement window AC, you will have nothing to worry about.


Q. What is a casement window and why special ACs are designed for it?

Casement windows are traditional style windows that move with the help of a hinge on the side instead of sliding across the sash. These windows open either inwards or outwards based on the installation. Also, these windows are a bit taller compared to regular windows. As you can imagine, standard ACs won’t be compatible with this window design. Therefore, casement window ACs are designed to be taller than they are wide to fit casement windows.

Q. How to install a casement window AC?

Installation of a casement is quite easier compared to other types of ACs. Almost all casement units are installed from the inside of the window rather than outside. As for the fixture, these ACs come with a set of long screws which hold the mounting fixture in place. While you are installing the AC, make sure that it’s platform assembly is installed securely before you put the AC in its place. If there are any gaps, try to fill it with plastic, particleboard, or similar material.

Q. How can I vent a casement window AC?

Most air conditioners, including casement window air conditioners, come with a dedicated vent kit designed for sash windows. To use the same for casement windows, an additional metal plate with a vent hookup is installed vertically at the bottom of the window. It’s best if the plate is included with the air conditioner. If not, you will have to buy it separately before you can vent the air conditioner.


A decent air conditioner can be a quality-of-life upgrade for you and your family, especially if you live in a warmer region that becomes extremely hot in summer. As there are hundreds of options available out there for an AC, you might be confused about what type of AC you should buy and which brand you should prefer. If you are going to install your AC on a casement window, you should go with one of our best picks for a casement window air conditioner present here. You can also refer to our buying guide to find the perfect match for your requirements. If not, you can simply one of our top recommendations and get the performance you want with your casement window air conditioner.

First of all, we will recommend the Midea EasyCool Window Air Conditioner since it is the cheapest option available on our list. This casement window air conditioner is rated for 8000 BTU capacity which suffices for a nearly 350 sq. ft. wide room. This is also a compact option compared to others on this list which is best suited for normal sliding windows. There are 3 modes available on the Midea EasyCool Window Air Conditioner which you can change as per your needs.

On the other hand, the Koldfront CAC8000W is the most reliable option we have for the best casement window air conditioners. This air conditioner is backed by a 2-year warranty period which isn’t easily provided to ACs. It is also rated with 8000 BTU power capacity which is enough for a 350 sq, ft. coverage area. You will also find a digital display on top of the Koldfront CAC8000W AC where you can check the status of the room as well as the operating mode of the AC.

The Keystone Slider Casement Window Conditioner is also a great choice if you want a high-performance casement window AC. This unit offers adjustable fan speed within 3 preset settings along with a 4-way air directional control to offer you the performance you need in your room. It also has a built-in sleep mode which makes it perfect for bedroom installations. As for its capacity, the Keystone Slider Casement Window Conditioner features a 10000 BTU rating which is suitable for 450 sq. ft. rooms.


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