Window AC / August 30, 2018 / Marphisa Babin
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.
If the room is shaded then you can decrease the BTU rating you calculated with the climate control unit calculator by 10 percent however if you wish to cool a kitchen youll need to raise the rating by 4000 BTUs. When the room you are cooling is used by two or more people add six hundred BTUs per person to the rating necessary to cool the room. Before you buy the first air conditioner that fits the BTU rating necessary to cool your room make sure you have a window that will be suitable for the unit. Measure windows in the room (make sure not to block fire escapes) and make sure to buy a window air conditioner that will fit into the opening.
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.