When doing oxyfuel welding, how should torches be lit?

In oxyfuel welding, using a friction lighter to ignite the torches is the preferred method due to its safety and effectiveness. Friction lighters provide a controlled spark that can ignite the fuel gas without exposing the flame to open air, reducing the risk of backfire or flashback. This method allows the welder to light the torch safely while minimizing potential hazards associated with open flames, such as accidental injury or equipment damage.

Other methods, such as using matches or a regular lighter, can present safety risks. Matches may ignite the gas too quickly or unpredictably, creating a flame hazard, while a regular lighter may not produce a flame that's easily controlled or stable enough for safe torch ignition. A spark igniter, while it sounds effective, may be less reliable or comfortable for some welders compared to the more traditional friction lighter, making it less commonly used in practice.