Window AC / September 4, 2018 / Jacqueline Bizier
When cooling such a device reduces the humidity in the room. There are certain advantages in it for example in a hot afternoon or after rain when the humidity reaches its maximum 100% and the dehumidification is up to 30-60% it facilitates thermoregulation of the body. Window air conditioners are able not only to cool the air. More expensive and modern models have remote control and can operate in the heating and cleaning mode. They have a wide range of operating temperatures - an average from 18 to 43°C. Powerful differently directed air flow evenly distributes across the area.
Side panels fill the gaps on the sides. These are also very thin so most of the sleeve is uncovered and outside. This allows for placement of ventilation louvers on the sides and top allowing free movement of air. This is the primary difference between the two types. The wide availability of louver space allows the unit to move a lot of air and this means window units can be quite powerful up to 3 tons or 36000 BTU. So window A/Cs can be effective for very large rooms. In contrast a wall air conditioner sleeve is designed for a hole through the wall. Walls vary substantially in thickness.
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.