If you want to build a pizza oven that will enable you to cook a large number of pizzas at a time, then you should settle for a vault pizza oven. These ovens have a large hearth where you can place your multiple pizzas to cook at the same time.
When building these pizza ovens, an additional layer of refractory concrete is required so that the heat mass of the oven can be boosted. This is done so as to ensure that when the pizzas start cooking, the oven contains all the heat required for the successful cooking of all the pizzas. Therefore, build a vault pizza oven and you will benefit from the sale of the many delicious pizzas that you cook.