Another day another years of buildup removed from hidden areas

Another solid fuel system initial cleanup started last night. It was just cleaned 2 weeks ago by someone else. Here is what we found in the horizontal past what one could see from looking up the hood. Although the vertical risers looked fairly clean, that stopped once the duct turned. This was a smaller part of a major buildup that had to be broken up to remove from the access plates. The existing access plates were adequate, although they had not been used in a few years as had to be pried off.