So I'll jump onboard by saying *subscribed* and then asking my dumb question.
I was under the impression that having fire burn for hours (or at least 90 minutes) in an enclosed space is a bad thing, not because of the heat (though that, too) but because it burns-up the oxygen in the room and you get a headache and then take a long-term nap... Actually, I thought this was the whole reason for people to build those electric heat-wand gadgets... I'd like to hear more about the heat source and oxygen levels in the room.
Obviously this is not a problem and this thread totally inspires me. I'll be moving in the next few months and a basement is at the top of my list, even higher than "secret passageways" and "man-cave with a bar."