Window AC / September 7, 2018 / Aubrette Dumoulin
The most popular brands of window air conditioners in the US are General Electric LG and Friedrich. You can find these units at various big-box retail stores like Best Buy or Sears as well as at online at merchants like Amazon. The cost of window units varies widely depending primarily on how many BTUs you need. The smallest units can be as well as $180 with the larger units running up to $500. In some climates Summer months can be downright unbearable without an air conditioner. Window A/Cs are less expensive than central air cooling systems and they typically use less energy than whole house systems as well.
So what you should do? The best thing to do is to check out the sound levels on your window unit before you make your purchase. All air conditioners come with labels specifying the decibels generated by the unit. A high number means a loud machine. For example a unit with a rating of 50 Decibels is 10 times louder than one rated 40 Decibels. The smartest thing to do is to go to a big box store like Target or Walmart and listen to an air conditioner before you buy it. Even if you are looking at a different brand it is important to get a sense of how loud the Decibel ratings are for you. You can do this best by listening to different ac units running.
The answer is It depends on the wall thickness. Sleeve specifications for some window air conditioner manufacturers include the maximum wall thickness before it will cover part of the louvers. For example Amanas 18000 BTU models have a max of 8.5 inches. If the wall thickness is at or below that these models can be used in as a wall air conditioner without adversely affecting function. So whats the problem if the wall covers a little of the louvers? Two things: 1) restriction of air movement and therefore reduced efficiency and 2) these units pull air in very powerfully. Cut wall edges could become loose allowing material to be sucked into the unit and potentially causing damage.