Before revision: 200px|Propane burner with a Bunsen flame 200px|Oxy-Acetylene for cutting through steel rails 200px|Flame of a gas and oil, in a dual burner A gas burner is a device that produces a controlled flame by mixing a fuel gas such as acetylene, natural gas, or propane with an oxidizer such as the ambient air or supplied oxygen, and allowing for ignition and combustion.
After revision: 200px|Propane burner with a Bunsen flame 200px|Oxy-Acetylene for cutting through steel rails 200px|Flame of a gas and oil, in a dual burner A gas burner is a device that produces a non-controlled flame by mixing a fuel gas such as acetylene, natural gas, or propane with an oxidizer such as the ambient air or supplied oxygen, and allowing for ignition and combustion.