I'm a fairly new user of coal and bought a house with a 400-A model installed in the basement. A couple years ago I figured out how to use and it and the thing is amazing at the amount of heat it puts out.
I'm not familiar with the part names but I just found that the exhaust/vent tube that comes off the back is cracked and missing a few small pieces. The problem is that it is 2 piece cast iron 90 degree elbow. Some people have said that I could use stainless steel in place of this.
Any info or help is very much appreciated.