here are several reasons you may be considering installing a window AC unit. Window air conditioners offer an affordable option for keeping a room cool during the hot summer months. 

 They are not only considerably less expensive to purchase than a whole-home HVAC system, but they also cost less to run. Compared to fans and portable air conditioners, these units can

 also be a better option if you want to conserve floor space

Window air conditioners can be installed in a variety of places, making them a versatile cooling  product. You can add them to bedrooms, offices, apartments, and even dorm rooms. But before

 you jump right in and try to install an air conditioning cabinet, read through the list of do's and don'ts below. These will help you avoid hiccups during the installation process, as well as

ensure that your unit functions as desired to keep your room cool.

Don't forget to measure the room and window dimensions

Choosing an appropriately sized window unit — both in terms of the physical dimensions and its ability to cool a small or large room effectively — is essential. you need to start by measuring

 the room where you plan to install the unit. This will help you to avoid picking a model that is too  small to adequately cool the space or one that is larger and more expensive than necessary. 

Calculate the room's square footage by multiplying the length and width together. For example,  if the room is 15 feet wide and 22 feet long, it would be 330 square feet (15 x 22 = 330). After

 calculating the square feet, you can use that value to find the appropriate BTU (British Thermal Unit) measurement for the space. Air conditioners with a higher BTU rating are designed for

 larger rooms, while those with lower BTU ratings are better suited for smaller rooms. For  example, a 5,000 BTU model would be sufficient for rooms between 100 and 150 square feet, 

but a larger 9,000 BTU model would be necessary to cool rooms of 350 to 400 square feet.

In addition to calculating how many square feet the room is, consider the size of the window where you'll place the air conditioners. The accordion side panels on each cabinet allow it to 

 adjust to fit a variety of window sizes, but these panels will only stretch so far. You'll want to  measure your window's dimensions to ensure that a particular unit will fit in it properly.