Something we did not count on when working with our wood fired oven was the generation of charcoal. As we get the oven up to pizza cooking temperature we burn a fair amount of wood. And the burning wood turns into charcoal. The vast amount of charcoal produced sparked a lightbulb. We could use it to fill our Big Green Egg. We can use it immediately. And if we close the vents on the egg, the charcoal cools and is reserved for another day.