That's the point, tho ...a heat gun is not the best tool for this. A hair dryer allows you a more gradual heat up of the statue which is what you want. You want to heat the statue just enough to make the fix ...to limit the risks and not over heat the statue. The heat gun is overkill. It's like using a sledgehammer for a 2 inch nail.
Even I have a heat gun for when I fix things around the house ...or when I modify my stereo system in my cars ...etc ...but I don't use my heat gun for this fix. Not necessary.
Hairdryer heats a larger area and can cause issues too. I can heat just the size of a pea with my gun and quickly too, you just have to judge the heat and time or buy an adjustable one(or just hold it at more distance).