Window AC / August 24, 2018 / Aubrette Dumoulin
Why are window air conditioners so loud? Well the reason is simple: because the entire air conditioner - the compressor the condenser and the fans - are all located in one single unit. By contrast with a split ac and a central air conditioner the compressor and condenser are installed outside of your home. That means that in those units the loudest parts arent in your home. With a window unit however the noisiest parts of the unit are inside your home. This can be a minor annoyance. It may mean that you have to turn up the volume on the tv to hear it. But it can also mean sleepless nights if your window air conditioner in your bedroom is deafening.
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.
A window air conditioner in my opinion is a last resort for air conditioning your house or building. There are many down sides to window air conditioning units. There are two good things that window air conditioners have going for them. They are very inexpensive when it comes to cost per BTU of cooling. They also install very quickly and easily. That is where the good part of them ends. Window air conditioners are security risks. If a thief wants to get into your house the thin sheet metal box that holds the unit in the window can easily be pulled apart to get in through the window.