I have a 1996 RSF Opel 2000c, I have a problem with control on the fire. I have had the fire uncontrollable a couple of times. I have checked the gaskets in the doors and they look new, I tried the paper test when the doors are closed and the paper is very tight but can be pulled out. How does the Bi Metallic damper work, Does that ever go bad, Shouldnt I also be able to shut it down even if the coil is bad? I have 14 ft of 8 inch class A chimeny hooked to this. I have just put this fireplace in in the last month, I bought it used and it looks to be in very good shape with little use. I do know it has sat for sometime without being used. WHat can you tell me about the opel 2000c, Was that a good fireplace or were they troublesome? Thanks for all your help.