Thanks mate @DannyG, I might get enthusiastic about doing a proper job with mine now. I've got 3 of the longer ones, and two of the shorter ones. I bought them at a garage sale about 15 years ago, for $20.00 for the lot. The idea was to build a pot belly stove like I saw at the SGT's mess at Laverton, many years ago. It was a full on pot belly, with a door for loading wood in the top drum. The heat shield they had around the flue was only semi successful, as I found out when not thinking, I leant against it with my hand. Got a pretty nasty burn over the palm of my hand. Lucky I was p1ssed at the time, or it would have hurt like hell.