I didn't see this article posted yet, so I thought I'd share. Last week a Connecticut man was cleaning his boiler and ended up getting his arm stuck. He was stuck there for 3 days and was finally rescued after some friends reported him missing. The article linked below has all the details, it's quite a survival story. I know his boiler was not a wood fired unit, but accidents can happen to anybody and I just wanted to remind all of us to be careful, especially when working alone.
http://abcnews.go.com/Health/Home/man-trapped-furnace-amputated-arm/story?id=10889441
http://abcnews.go.com/Health/Home/man-trapped-furnace-amputated-arm/story?id=10889441