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The Best Casement Window Air Conditioners and Installation Guide

If you have casement windows and need to cool your space, you've come to the right place! We have carefully curated a list of the best casement window air conditioners that will bring a refreshing...

If you have casement windows and need to cool your space, you've come to the right place! We have carefully curated a list of the best casement window air conditioners that will bring a refreshing breeze into your home. These AC units are specifically designed for hinged windows, ensuring a perfect fit and optimal cooling efficiency.

open casement window Image: An open casement window.

What exactly is a casement window?

A casement window operates similarly to a door, opening to the right or left via a hinge. It's sometimes referred to as a crank window because you need to turn a handle to open it. When it comes to casement window air conditioners, they come equipped with an installation kit specifically designed for window mounting. Unlike traditional window AC units that rely on the window sash for stability, casement windows require a more involved installation process.

The best casement window air conditioners for your needs

Before you start shopping for a casement window air conditioner, it's crucial to determine the appropriate size for your space. AC units are measured in British Thermal Units (BTUs), which indicates their power. A general rule of thumb is to multiply the square footage of your room by 20 to determine the necessary BTUs. For example, a 400-square-foot room would require an AC unit with at least 8,000 BTUs to effectively cool it.

![casement window air conditioner](insert image URL here) Image: A casement window air conditioner.

Many of our top picks offer various options for BTU outputs. It's essential to select the correct BTU capacity when placing your order to ensure adequate cooling for your space.

Another option: Portable air conditioners for casement windows

If the idea of lifting and installing a casement window air conditioner seems too daunting, don't worry! There's another fantastic option available. You can purchase a portable air conditioner along with a venting kit designed for vertical windows. This solution simplifies installation, as most portable AC units come pre-assembled and are easily rollable. The window venting kits are simple to install and can be customized to fit your window size perfectly. This option takes up less window space and enhances the aesthetics of your home's exterior.

If a portable air conditioner seems like a better fit for you, check out our comprehensive guide to the best portable air conditioners.

How to install a casement window air conditioner

Please note that most casement window air conditioners weigh approximately 70 lbs, so it's advisable to seek assistance from a friend to lift and install the unit. If your AC unit doesn't come with a window air conditioner installation kit, be sure to purchase one separately. These kits typically include a mounting bracket and window seals. Before you begin the installation process, review the instructions thoroughly and gather all the necessary tools, which may include a screwdriver, measuring tape, and a ladder.

Step 1: Install a support bracket

To ensure the stability of your casement window air conditioner, it's essential to install a support bracket. The bracket will help distribute the weight more evenly. Follow the instructions provided with your support bracket, screwing it into the side of your home. If necessary, set up a ladder outdoors if you cannot reach the bracket from inside the window. If the crank mechanism or hinge obstructs the installation, disassemble and remove it. Store it in a safe place so that you can reinstall it when the weather cools down or if you decide to remove the AC unit.

Step 2: Position the AC unit

Once the support bracket is securely in place, lift the air conditioner and rest it on the bracketed mount. Ensure that the AC unit aligns flush with the window frame. On the other side of the AC unit, close the window as much as possible. If you have a sliding window, position the window sash in the designated slot on the side of the AC unit.

Step 3: Seal the window

Refer to the directions provided with your window AC installation kit to cover any gaps left in your window. Usually, the panels included in the kit match the color of the AC unit, ensuring a cohesive appearance. Alternatively, you can visit a hardware store and have a piece of plexiglass cut to size. This will fit above the casement window air conditioner and maintain some visibility from the top of your window.

While installing a casement window air conditioner is generally a DIY job, you can also hire an HVAC expert to assist you if needed. The cost of professional installation is typically much lower compared to installing a central AC system.

The bottom line on casement window air conditioners

Casement window air conditioners are the perfect solution for cooling rooms with narrow windows, whether they open via a crank or slide. By referring to our informative chart, you can choose an AC unit with the appropriate BTU capacity for your room size. Fortunately, there are several effective and affordable options available on Amazon, offering excellent energy efficiency and quiet operation.

If you opt for a smaller casement window air conditioner, installation is a manageable DIY task. For heavier units weighing around 70 pounds, we highly recommend enlisting the help of a friend to lift and install the unit into your window.

Enjoy the comfort of cool air flow in your space with a casement window air conditioner that meets your needs perfectly. Stay cool and beat the heat!