I'm sure we've all seen just how fast fuel burns in Powder Toy, so of course this makes for some very inefficient creations. Without recycling anything(I may later recycle electrical output) I have made a generator that can burn for several minutes off of one tank(and the tank isn't acutally that large) by only burning when the engine's ambient temperature is about to dip below 100 C. I'm aware it isn't very complex, but it's more efficient than many other creations. Please give feedback/suggestions.
Great work! The fuel could last longer if the smoke is turned into oxygen and then into LO2 and re-injected if needed and the vapor is condensed back into water.