Yes! You can use most window air conditioners through a wall that is up to 11" thick. If your wall is thicker than 11", consider these options:
- Ductless mini split air conditioner: The evaporator hangs on the wall in the cooler, the compressor goes on a concrete pad outside. They are connected by tubes and wires which run through a 3 inch hole.
- Through-the-wall air conditioner: Most manufacturers make a custom designed metal sleeve with all the necessary ventilation to use it in a thicker wall. Some are sold all in one piece, and some are an extra accessory for a standard window air conditioner.