I have to agree with Gary, Rose, and Ron–that would NOT be a good item to have in a mine considering the gasses present. It looks like a very well built portable stove. I would be very curious to see the underside. Except for the door, I cannot see any air intake vents, and any sort of stove needs a lot of air to keep burning. So was it meant to be used with the door open? Not very safe in terms of sparks flying out. Those legs on it made of angled iron–those would keep the stove off the ground, as if it would be used on a wooden floor or someplace that could be harmed by heat. How about this idea: ice fishing. That would explain the portability, the lack of vents, and the need to keep the area underneath cool. The top is just the right size to hold a pot of coffee.