Welcome to WildVoice!  Great show -- very informative.  I'm gonna get a CM detector this weekend, I promise!

Thanks Steve!  We just bought our first house and this is timely for me, because our chimney is unlined and we've read that with a newer, efficient furnace, an unlined chimney is too large and can result in poor air flow and back-up of CO into the basement.  So, we're putting them up until we can get the chimney lined.

Anyway, welcome to WildVoice!  You might want to edit your post to add some tags and brief show notes.  This will help people find your posts, because the show notes will be indexed by search engines, so people searching for info, for example, on CO, might come across your page in a Google or other search.