This is supposed to be set inside the wall, but I had a small TV stand and made it work. I can’t figure out how to open the glass to place the glass rocks inside. I’m guessing this was an open box. It’s starting to make a buzzing sound when I have it on for a while. I’ve only used the heat a few times but it works well. Overall I do like it and the issues I have are my fault for not researching properly.