This is very troubling to me. I just read in a book that galvanized stovepipe gives of toxic fumes when heated to high temps(750 or over). Well, my internal flue gas thermometer sometimes reads above 1,000 degrees. Yes, for short periods at relode before closing bypass, but whenever it gets up there, I smell a nasty smell. I got the stove last year and in the beginning, I always thought it was the paint still curing, but then it never went away. It happens every single time that pipe gets hot. So, after reading what I just read, I checked out the pipe I have- Simpson Dura-Vent DVL (Which is their double wall pipe). From what I gathered on the Simpson website, the inner wall is stainless, and the outer wall is galvanized steel painted black. There is about a 9 foot exposed interior run of this. Those high flue gas temps are hot enough to get that outer wall piping hot. I have two young daughters, the younger we just brought home from the hospital less than three weeks ago. Why would they sell this? It bothers me right down to the bone this could have been harming my family all along. I posted this as a warning for others. I'll be contacting the dealer about this. It was very irresponsible not to warn me of this. Does anyone have any suggestions? Does anyone know of any black double wall pipe that is not galvanized at all?