Air-cooled Oven Door As hot air rises and escapes through slots at the top of the oven, it is replaced with cool air from the bottom – the constant flow of air keeps the glass door cool. Thermofan Produce more succulent roasts and give your baking better texture, with lowered temperatures due to the Thermofan’s airflow – saving electricity costs and consumption. Multifunction Oven The multifunction core design has six options to make life easier in the kitchen, giving you the ultimate convenience.