A radiation and convection heated oven in which infrared radiant heat is generated by one or more sets of coplanar positioned heaters, the radiation from each set of heaters being directed through a transparent reradiating panel, such as a fused quartz panel, forming a wall of an oven chamber. The oven chamber is provided with a plurality of shelves also transparent to the radiant heat and supporting heat absorbing containers. The radiation passing into the oven chamber being distributed in an essentially uniform pattern by reflecting surfaces for absorption by the containers as well as the exposed surfaces of food contained therein. Simultaneously, air is circulated past the set or sets of heaters and the transparent panels and around the food containers to control excess radiant temperatures and supplement the radiant heat applied to the food.