Can you use a regular air conditioner unit in the wall?

Yes, you can use a regular air conditioner unit in the wall, but it depends on the type of unit. Window air conditioners can be installed in a wall with the proper modifications, including a wall sleeve for support and drainage. However, it’s important to ensure that the unit is appropriately sized for the room and that it meets local building codes. Alternatively, wall-mounted mini-split systems are designed specifically for this purpose and are often more efficient.