Before you remove paint with a heat gun, you need to make sure the area is well-ventilated and that there is nothing flammable nearby. You must also always wear heat-resistant gloves and safety glasses, regardless of the heat you have set it to.
Start by setting the heat gun to a lower temperature (30-130C). Once at the temperature, hold it 6 inches away from the paint until the paint starts to soften. Once softened, remove it from the surface using a paint scraper. Repeat this until all of the paint is removed.
It’s important to note that anything higher than 130C can result in harmful fumes being released.