Combined Heat The top and bottom heating elements combined with the circular heating element and the fan provide a perfect heat distribution to ensure a homogeneous cooking as well as energy savings, since the preheating phase is no longer necessary Mode CHEF Exclusivity. In CHEF MODE, the oven will manage all cooking parameters.(temperature - cooking mode and time). The dish just needs to be placed at the rack height recommended on the display, and it will be cooked to perfection. That's it.