Or you could do it the hard way: grind/wire brush it after burning the crud out, then BBQ paint the outside, then regrease the inside. I wouldn't do it(ok I might), but it is another option to entertain. Check when you burn it for signifiant air leakage. This is the problem with our new braunfel. We thought about fixin it with stove insulation but haven't yet. Also, if it is rusted in the inside and you close the door hard...and are cooking...you will have more than rub on the outside. But at least that is high in iron!