For several days I've been smelling a very slight odor of wood smoke in my house and naturally was thinking it was the pellet stove. Yesterday morning I noticed it and shortly after went outside to get the morning paper. Got outside and there was a fairly strong odor in the air of wood smoke from surrounding neighbors that have wood stoves. Now I'm wondering if it's my pellet stove that has a slight leak or if it's just outside smoke leaking into the house that I'm smelling. My pellet stove piping has all the joints well sealed with silicone and the flange is tight to the stove, so I wouldn't think I have a leak, but not 100% positive on this and if it's outside smoke I'm smelling, not sure how I can positively eliminate my stove as the source. It doesn't seem the the odor in the house is there all the time and it's pretty faint to begin with.