Temperature control is very easy and will quickly be learned by the new Primo owner. Obviously, if the Primo is allowed to build high temperatures by opening the lower and upper draft vents, it will take quite a while for all that mass of ceramic to lose that heat, so try not to overshoot your target grill temperature. A one inch opened bottom vent and a half inch top vent will normally let temps build to around 300 degrees. The heat buildup from a larger opened bottom vent can be controlled somewhat by a smaller opening in the top vent. Wide opened bottom and top vents will result in temps quickly going to 800 degrees or more. Very little foods need to be cooked that high.