I just saw one of these the other day in a freind's basement. He is renting the house. The boiler is a 1978, looks really clean, and has the yearly cleaning/inspection done. I have never seen a multi-fuel before this. There is also about 4 tons of nut in the basement that he can use. My freind is not a coal burner but may become one soon....now. I am a hand fed stove burner so I know the basics. I was looking at the coal side of the boiler and two questions come to mind. Looking at the coal grates, just above them on the left side of the firebox, there is an opening that goes into the middle area where the chimney is located. How can you build a deep bed of coal with that opening there? Is there a plate to cover that while burning coal? I read about the damper and it's four positions that is inside near the chimney area. I understand that part.
The baro looks like a simple, non-adjustable one you find on an oil burner, should that be switched to a RC model? Also, there is a cap for the baro... chained to it. On the cover, ingraved in the metal, it says to install the cover when burning solid fuel, but I think they mean when burning wood.