What safety measure should be taken when using a heat gun in repairs?

When using a heat gun in repairs, ensuring that flammable materials are removed from the area is crucial for safety. Heat guns generate significant heat and can easily ignite flammable substances such as paints, solvents, and rags if they are in proximity. By eliminating these materials from the workspace, the risk of accidental fires is greatly reduced, creating a safer environment for the technician to work in.

While wearing protective gloves and using the lowest setting are also good safety practices, they do not address the immediate fire hazards associated with heat guns. Operating outdoors might be advantageous for ventilation, but it doesn't eliminate the risks of igniting flammable materials, which can be present in any repair area, indoors or outdoors. Therefore, removing flammable materials is the most direct and effective safety measure to prevent possible fire incidents when using a heat gun.