Due to what I have learned on this site, I try to stay away from any alternative heat (even lump charcoal) other than pure hardwoods. I build my fire from hardwood kindling until I have the desired coals. My question is this: Is it necessary to do all of the above in some sort of a metal basket w/ high walls to keep the coals off of the sides of my firebox? I am already losing some external paint due to the high heat (coals) touching the interior walls of the firebox. How prevalent is a basket used among those on the Forum? Thanks.