Window AC / August 31, 2018 / Aubrette Dumoulin
Have everything ready and laid out before you have unpacked. Have the screen removed from the window. Remember that these only work for windows that can be pulled up. Ones that crank out will not open wide enough nor will they have anything to hold the air conditioner steady. Open up the window as wide as it can go to give yourself a little extra room to work. It is helpful if you have someone there to push down the top sash when the time comes. Make sure the air conditioner is facing the right way. The front which should be inside the room should have the dials and the cord to plug into the wall.
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.
Window units of today are very quiet and their efficiency has improved a lot also. In fact these units are so quiet that you can hardly even hear them operating. Window air conditioners have the same components as a central air conditioner but they are all installed in small cabinet. The biggest and most important difference is that they dont have to cooling capacity of central units. But they also dont cost as much to operate either. If you only want to cool one or two rooms then window air conditioners are a perfect choice. However if you want to cool your entire home a central air conditioner is the best alternative.