Well, I went to clean my stove today and there is a 2 inch crack on the front door near the side. It looks like it is cracked between the panes if that is possible because if you run your finger over either side there is not crack that you can feel. Can I still use it? I hate to use my furnace not just for saving money but it sucks even though it is brand new. Nothing like a pellet stove. Any help would be appreciated. I just didn't know if it would shatter if it got hot.