I have a Hearthstone wood burner in my basement. I enjoy using it in the fall, but when winter arrives I have issues with a bad downdraft through my chimney. I believe it is caused by my furnace creating a draw through the chimney. Once a downdraft has begun, it is hard to overcome it. It seems similar to a siphon action - once it starts it keeps going. I have even resorted to trying things like removing the chimney clean-out when not in use and stuffing an old towel in to prevent the downdraft from beginning (this gives only limited improvement and of course I have to remember to remove it when I want a fire). I imagine if I used the stove continually, there would be no problem since once I do get a draft going it works fine. However, I only use it a few nites here and there. Even after I get a draft going (usually by using a hairdryer) and I then let the fire die overnight, the next morning a strong downdraft will once again be going and the smell is not so pleasant. I'm at the point where I think I'll only use it in the fall (before it gets too cold to begin running the furnace). This is kind of a bummer since there are some cold nights when it would be really nice to have it going. Again, this seems to be a problem only when winter arrives and I'm using the furnace - I don't have downdrafts otherwise. Have others of you had similar problems? If so, I'd be interested as to any solutions you may have come up with. Thanks!