I agree that the design is sound...I differ in the integrity of a 100 year old appliance, and for the record, I really want to be part of the Frat but won't be able to sleep at night for fear that one night a fatigue crack will open up a casting and I'll sleep forever.
So what your saying is you want one that has been approved for use by the goberment. Unless you have their blessing it can't possibly be safe. ???
If a crack was to occur in your stove(lord only knows why) and your draft wasn't enough to carry away any carbon monoxide, ( no pressure inside, just negative draw) then your CO detectors all failed to alert you. I could see why you'd be afraid to join the club. There are pros and cons of everything you do. In this instance I think the pros far outweigh the cons.
I guess the frat boys are '"living on the edge"
Just kidding with you Gekko, I think you are really worrying about a non issue when it comes to blazing rocks. If you burn oil CO is produced. If you burn propane CO is produced. The only thing I know of that doesn't produce CO is wood and I'm not going to recommend burning wood for safety.