A blowtorch has several meanings, which deal with tools that consume fuel. It may mean a:-

• Cutting torch, a handheld torch used for cutting metal.
• Blowlamp, a torch using propane or butane; its predecessors used gasoline or kerosene for fuel.
• Powerful radio station, especially a clear channel broadcaster.
• One of the G.I.Joe toys is named Blowtorch: he is usually shown with a flamethrower.
• See blowpipe.