I'm preparing to reface the brick on my old fireplace with a natural stack-stone product. I would also like to remove the brick hearth, and just continue my ceramic wood (look alike) plank across the base of it. I've now been told that the removal of the hearth is possibly prohibited by code, since a wood log could roll onto the floor and catch fire. Just to add, the ceramic plank tile is thinsetted on a 4" concrete slab, which is obviously fireproof, and the fireplace has been converted to natural gas with fake fireplace logs. Could anyone shed some light on whether I will have problems with this upgrade?