I have a small firebox, know that will reload. I start the fire top down, let the door crack out briefly until bulk of them char, then close door see the inferno break loose, for a little, then cut air to 1/3, then all the way down and watch the temp hold at about 550-500 w a load of unseasoned ash. Temp drops quickly to go around 450 then hold at 400 w the blower on. Am I doing it the right way? To maximize whatever amount of heat I can extract from ash?