I guess that I should quit my worrying about the slight amount of air that gets past the air diverter on my electric fan "bellows". I eat up a little more coal, but at least I am not searching for pieces of my forge. I know, I know. Those of you who saw my old shop are thinking, "It's more like looking for the whole forge." The new shop has more room and hasn't had time to collect much clutter. Mike Graf