If you have carefully designed your interior, it can be tricky to incorporate your indoor AC unit. Instead of just mounting the indoor unit on the wall, you may experiment with certain creative placements, such as putting it in the bookcases or under the stairwell. As long as you don’t block the airflow, you can try anything to incorporate the indoor unit into your interior. Most indoor units are sold in white or black color, but some manufacturers offer some unique colors that match your wall.