We bought a house with a Surdiac 513 last year and it is AMAZING. Only problem is that his summer two of the small glass panels got broken. The owner's manual says not to run the stove with broken glass (makes sense) but not how to replace them. I purchased new glass and am ready to go, but I don't want to start taking things apart without some idea what pieces I need to remove to slip the new glass in place. Anyone ever do this, or know the process?