Reminds me of our old scoutmaster ('way back in antediluvian times). He liked to make up bundles of "Go-lite" or "Hobo" Stew (chunks of seasoned meat and vegetables sealed up in aluminum foil) and put them atop the exhaust manifold of his old truck's straight six engine.
It was always a great treat to arrive at our campsite with a delicious, well-cooked, nourishing meal -- all piping hot and ready to eat!
Why do I remember these things?
http://www.amazon.com/Manifold-Destiny-Guide-Cooking-Engine/dp/0375751408