Last year I burned a Jotul 507 (now for sale on Craigs if you're interested) for 5 months straight. I had 5 inch pipe and some adjustable elblows coming out of the stove and up to a chimney thimble in the masonry wall above the mantel. I thought it would be a great idea to add an fan behind the stove to blow the hot air around the room. Boy, was I wrong! On several occasions I tried different configurations and angles (behind, in front, to the side, facing up, facing down, etc) and every time a massive amount of SO2 smell entered the house. This was all new stove pipe with the crimped ends facing up like you're supposed to with coal. Being new to coal then, I chocked it up to the nature of coal flue gases. Any breeze across the stove pipe pulled the flue gases right out of there. I said to myself, 'ok, no fans, just radiant heat from now on'.
This year, I have a chubby stove with 6 inch flue pipe, bought all corrugated elbows instead of adjustable, and used direct vent sealant in all the stove pipe connections along with self tapping screws. I'm even considering wrapping the connections in high temp foil tape and painting the foil tape black. Anything to avoid sulfer smells. To some extent a little smell is unavoidable when loading/reloading, but all my connections are/will be pretty tight.
So here are my questions: Anyone else have this problem where a little fan breeze and your house smells like rotten eggs instantly? What would I have done wrong to cause it? It's August, so I can't really test my new setup with a fan, but I'm hoping this year I can safely blow a little breeze on my Chubby to get some circulation going. The new Chubby's even come with blowers built in.