Note that the GAG is used to suffocate coal seam and similar fires, by injecting a mix of water and fuel into the jet exhaust (essentially an afterburner with w

Note that the GAG is used to suffocate coal seam and similar fires, by injecting a mix of water and fuel into the jet exhaust (essentially an afterburner with water-injection to keep the exhaust temperature low), and then providing a pipe of very-low-oxygen gas stream.