A convection oven has a fan and exhaust system that circulate hot air around the inside of the oven, making it ideal for multi-rack cooking. Like conventional ovens, convection ovens can be gas or electric and come in different models with various features. A convection oven is an oven that has fans to circulate air around food to create an evenly heated environment. The increased air circulation causes a fan-assisted oven to cook food faster than a conventional non-fan oven, which relies only on natural convection to circulate the hot air.