Conclusion. Inexpensive and easy to install, window air conditioners are one of the best options for cooling individual rooms. Their starting prices are extremely low when compared with split or central air conditioning units, and they are also able to keep your room cool for longer periods.

Are window AC units effective?

Window air conditioners can do a very good job of cooling down a room or two, and they cost only a fraction of what a central AC unit would cost. ... Central air conditioning costs a lot more to install than a couple of window or room AC units. But, unlike window or room units, central AC cools the entire house.

Do window AC units make your electric bill go up?

Well, compared to central units, they do not. A window AC unit uses less than ⅓ of the amount of energy it would take to run a central unit for the same amount of time. But if you have more than one unit, it can quickly add up.