How it works: place the Coleman pizza oven on top of any power source (gas burner, grill or jikos) and preheat for about 5-8 minutes to attain the baking temperatures. Proceed to bake once baking temperatures have been achieved. Low-to-medium burning is recommended for gradual heating. Coleman pizza oven bakes a medium-sized pizza (30 cm diameter) under 2 minutes. Safe, efficient, and affordable.