Exactly. It's an old house with thick stone wall. A few years back the=20 previous owners decided to add a fireplace in a corner where there was=20 no chimney. So, the chosen solution was a new steel chimney going from=20 the fireplace, through the wall and up outside the building. The problem=20 is that they made the hole by drilling through the stones just enough=20 for the chimney diameter. They were confident enough to think that it's=20 was certainly a stone-only wall and didn't even bother to take a look=20 into it nor to put some insulation around it (when the Police asked for=20 reasons the man said "why we should have?"). Well, just below the hole, just a few cm away there was an old wooden=20 girder from a previous (now hidden) door. The result was that every time=20 we lit up a fire there was a strange smell that I always thought that=20 was a fireplace fault (in fact it was wood slowly consuming itself,=20 having no oxygen in the wall). Then, as in Russel's case, the day I made=20 a fire just bigger than usual the girder really took fire and the=20 resulting smoke spread all around the house, passing through every wall. We discovered it soon enough and what was damaged was just the wall we=20 had to pierce to estinguish fire. It could have been really bad. Imagine=20 at night, everyone sleeping, CO all around, fire............ Now we just need put some insulation and close the hole. We've been=20 lucky, in the past it was not uncommon dying this way... Il 03. 04. 15 09:45, Ryan O'Connor ha scritto: > Wow the fire was inside a wall? That's strange. Was it an electrical > fire? How serious was the damage? You might need to replace some of > your building, not just to remove the burnt smell but to repair its > structural integrity. > > Ryan --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .