I know very strange.... but there is a strange vibration noise and we have only noticed it since the stove has been in. It's hard to explain, you can't really feel the vibration, but more hear it. Well you feel it slightly, but not like the floor shakes or anything. I guess if I had gas in the house, I would think my house was about to blow. But there is no gas lines running to my house. So, didn't know if anyone else experienced this? Could be something totally different, but we can't figure it out. And we never heard it before the stove was running.