A casement window air conditioner is a suitable option if your room has vertical windows only. You have the option to go for the portable AC, but these air conditioners come with better airflow and area coverage while still adhering to the casement window dimensions.
These units are also called vertical window air conditioners or sliding window air conditioners. They are available in different capacities, and you can choose one based on the room size and your needs.
In this guide, we will look at the best casement ACs that the market has to offer.
How to Choose a Casement Window Air Conditioner
Capacity
The first thing you have to see is the capacity of the unit you are considering. These vertex units are available in different capacities. Some of them are 8,000 BTUs, while others are 10,000 BTUs.
You need to pick one based on your needs and the size of the room. A 6,000 BTU unit will work for an area of up to 200 square inches. For a 300 square feet room, you will need an 8,000 BTU unit, while a 10,000 BTU unit can cover a 400 square feet area.
Inbuilt humidifier
You will have to keep in mind that going for a unit with different modes will always be a better option. Therefore, consider going for a unit that comes with a humidifier inbuilt.
Fan speed
Better fan speed is always going to be handy. So, you need to consider the airflow and CFM to throw air in the broader area in front of it.
Water tank capacity
If you are looking for a unit with an inbuilt humidifier, you need to make sure it has a large water tank. Some of them come with evaporative technology, while others require a bit of your help for draining.
Easy to install and clean
It would be better for you to go for a pretty simple unit to install and maintain as well. Too much complexity here will make it challenging to get the most out of your unit.
What are the top brands that sell casement window ACs?
There are only three to four well-known brands that are currently selling sliding and cement window air conditioners. These include Frigidaire, Koldfront, Keystone, and PerfectAire.
Why aren’t more casement options available on the market?
In most cases, you can use your portable air conditioner with the casement window inserts. This way, your portable AC becomes seven more versatile and delivers good value for money. So, manufacturers are slowly drifting away from the casement window air conditioner.
Best Casement Window Air Conditioner Reviews
1. Frigidaire Casement Window AC – Best Overall
Its total capacity is 10,000 BTUs, and it needs 115V power to run. It comes with a remote control to easily access all the controls, and you won’t have to leave your seat.
This unit is specifically designed for casement windows as well as sliding windows. It means that it is not an ideal option for your standard window. It can conveniently cover up to 450 square feet of area, and it also features a dehumidifier.
So, it can easily collect three to four pints per hour and keep your room nice and fresh. You can run the fan speeds at different levels, and it also features a sleep mode too.
It comes with an energy efficiency rating of 10.4 and is pretty comfortable to use. You won’t need much to maintain and care for either.
| ✅ Pros | ❌ Cons |
|---|---|
| Best for casement windows. | No multiple dehumidifier settings. |
| Excellent airflow. | |
| Covers an area of 450 square feet. | |
| Features a dehumidifier too. |
2. PerfectAire Sliding Window AC – Best Premium Quality
It comes with a 10,000 BTU capacity and handles up to 450 square feet. This horizontal window air conditioner has a pretty good throw, and you will feel comfortable using it.
The controls are simple, and you can access them with a remote control. There are three different fan speeds available, and you can up the ante whenever you want it.
The best part is, that this unit works silently, and it will not make much noise and create any headache. However, this unit does come with a dehumidifier, and you will have to have a separate unit for that.
| ✅ Pros | ❌ Cons |
|---|---|
| Excellent airflow. | No inbuilt dehumidifier. |
| Very easy to use and simple to clean. | |
| Full accessible controls with a remote. | |
| Covers an area of up to 450 square feet. |
3. Koldfront Casement Window AC – Best Value for Money
Koldfront casement air conditioner has recently entered the market, but it has one of the best products and casement ACs. It is available in both 8,000 BTU capacity as well as 10,000 BTU capacity. However, you will notice it is one of the heavier units. So, you will have to be a lot more careful when handling these heavy suits.
It can conveniently cover up to 450 square feet of area. It features a digital display and a dehumidifier. There are three different fan speeds, and the air conditioner for the sliding window comes with a remote control.
It also comes with an energy efficiency rating of 10.4. These sliding window AC units don’t need much effort from you when installing. But you will have to be careful as it is quite heavy.
| ✅ Pros | ❌ Cons |
|---|---|
| EER of 10.4. | It’s a heavy unit. |
| Pretty powerful airflow. | |
| Three different fan speeds are available. | |
| Covers an area of 450 square feet pretty comfortably. |
4. Koldfront Sliding Window AC – Best for Price
Here’s another one by Koldfront, and it is the best budget option to consider. This unit comes with a smaller capacity of 8,000 BTUs. It also comes with its own remote, and you won’t have to leave your seat to change the settings.
This vertical air conditioner does come with a dehumidifier. Therefore, the sliding window air conditioner will need proper installation, and it will also require you to empty its tank frequently.
It can conveniently collect around 2 to 3 pints of water from your room, and the results will be pretty extraordinary. You can also go for the 10,000 BTU option and make sure this heavy unit is handled carefully.
| ✅ Pros | ❌ Cons |
|---|---|
| This unit is user-friendly. | No settings for the dehumidifier. |
| Comes with remote control. | |
| Features a dehumidifier as well. | |
| The 10,000 BTU variant is also available for bigger rooms. | |
| Energy Efficiency Rating of 11. |
5. Keystone Casement Window AC – Best for Durability
If you are looking for a unit that will work for a long time to come, you need to go for the Keystone. It’s an incredibly durable product and has a robust design. This sliding window air conditioner also comes with a 10,000 BTU capacity, and it can conveniently cover up to 450 square feet.
There are three different fan speeds, and it can manage 4-way control for the air direction. It also comes with a dehumidifier, and its filter is also washable.
This vertical window air conditioner comes with an energy-saving mode as well. So, it’s going to keep your utility cost under check at all times.
| ✅ Pros | ❌ Cons |
|---|---|
| Covers up to 450 square feet. | No dehumidifier setting. |
| Three different fan speeds. | |
| Energy-saving mode. | |
| 4-way directional control. | |
| Easy maintenance. | |
| Inbuilt dehumidifier. |
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In our opinion, the best sliding and casement window air conditioner is the Frigidaire Casement Window AC. It has a traditional design with straightforward installation. The unit features 10,000 BTU capacity, and it can conveniently cover up to 450 square feet.
Installation is a breeze, and so is the use. If you are looking for the best on the market, you don’t need to go anywhere else. It also features a dehumidifier and can bring down moisture levels in your room under control.
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