I just completed a Pompeii oven with 42" floor. I have hooked up propane to it and have a great flame. I spent a week bringing it up to temperatures. I fired it up today for 1 hour. From a half hour to a hour the oven kept the same temperature readings with my laser temperature gun. It reads around 1050 at dome and only 450 on floor. Does anyone know why I can't get the floor to the 800 degrees that I need to make my 90 second pizzas?