Howdy - so back to clearance issues. My stove manual states you need 4” of side clearance to combustibles with double wall pipe, but also that you need 8” of non-combustible hearth protection on each side of the stove. This seems contradictory. If a wall or cabinet is 4” away on the side, how do you get the 8” of hearth protection? My floors are concrete so maybe a moot point, but what am I not understanding here? Thanks!