My daughter bought a house with a Mendota MIG-32 gas insert. The glass is all cloudy with white film so we want to open the door to clean it up. She has the owners manual but it doesn't say how to open the doors. In the manual it says "install doors" but not how it was done. The gas fireplaces I am familiar with have latches on top and bottom, but we can't find a latch. There are about 4 bolts on top of the door behind the louvers, am I suppose to loose the bolts to open the door? I have contacted Mendota with this specific question and they sent me a copy of the installation manual, which like I said tellls us nothing. I replied to them about this and it was ignored. Anyone have an answer how to do this??