I was expecting a thread on 'tanks and carbon emitions,' something about calculating the carbon footprint of a panzer division and paying a stealth tax on it
Kai, it sounds feasible however remember that the exhaust fumes were rarely pumped straight out onto the engine deck, more often they pipes vented right at the back and so as long as you got reasonable air movement across the decks I can't see it being a problem. If the tank were in a hanger or confined space however, I can see there being issues.