A long time ago, my wife had the flu and I noticed cool smoke laying on the kitchen floor. I could smell it but couldn't find the source. The woodstove was on. Smoke poured out of the cabinet the oven was in. After searching the house, l had to call the FD. They said yep, fire, and pulled the oven, no fire. It was woodsmoke, not plastic or electric. They searched the house without luck then one of em yelled "Got it". It was in the garage, full of smoke but no flames; the only place I didn't look. After all, why would it be there? Got the car out and they hosed the source.
I had a woodpile in there. I had tried to fit a log in the stove last night when the stove was cold ( so I thought). It didn't fit so l put it back in the garage. An ember caught the log end like a cigar and it slowly burned a circular hole in the wall. The woodstove vacuum is what sucked the smoke in, up the studs, across the ceiling joists and down into the oven cabinet.