Window AC / September 2, 2018 / Denise Brisette
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.
Another Energy Star rated air conditioner from GE is the AEM08FM window unit. With a BTU 8000 this GE Air Conditioner has an energy saver feature making it much easier to save on your electric bill. It also comes with an electronic thermostat. This GE air conditioning unit also has strong reviews to back it up. Owners note how this product is also very quiet. If you have a big room to keep frosty go with the GE ASQ12AK Window Air Conditioning system. this Energy Star rated appliance does not skimp on quality. Figuring it effectively can keep a big room cool and at the same time be energy efficient this really is a bargain.
Today window air conditioners are becoming less popular then wall split-systems. And it happens for several reasons. These air conditioning systems are indeed much noisier than split-systems and they significantly reduce the daylight area. But besides some disadvantages window air conditioners have decided advantages. The main advantage is reasonable price. Another important factor is easiness in installation and relatively small amount of Freon in the system. Modern device models provide intensive ventilation and air conditioning and are characterized by economical operation.