...



I'm really trying to be patient here. But I feel like you completely missed the point I was trying to make.



The firebenders keeping the furnace burning indefinitely is not the issue. The issue, is the damn coal-powered furnace.



Let me put it to you like this: furnaces can overheat. And when that happens, they explode.



And firebenders tire out too, like you said before, it depends on their own stamina.



Those war machines - whether it's the human component or the mechanical one - are going to wear out at some point.



And we're arguing about a damn comic that's a joke about Santa giving out coal to naughty kids, and I really am not interested in pursuing this argument any further.