Abstract: The invention is in the field of devices for heating and/or cooking food and consists in inserting, in conventional static convection ovens, two ventilation elements, which are vertically mutually opposite and concentric with respect to two resistors, respectively, and can be contained in two movable tubular bodies; respectively, the lower body is anchored to the bottom of the oven and the upper body is anchored to the top of the oven. The tubular bodies, depending on their diameter, can contain a diaphragm, which is provided with a plurality of holes, or a housing, which is also provided with holes.

Abstract: The invention relates to an apparatus for heating and/or cooking food in water, of the type comprising at least a first tub to house water at boiling point and containing at its inside heating elements of the water, and at least one perforated container for the foods housable in the first tub; the first tub is contained inside a first box structure, superiorly open and superiorly sealedly connected to the upper edges of the first tub, and above the first tub an intercepting wall of the steam exiting from the said first tub is arranged; the apparatus further comprises a longitudinal aperture made at a portion of the connection zone of the upper edges of the first tub to the first box structure, a second box structure communicating with the inside of the first box structure and an aspirating element exhibiting its inlet in communication with the chamber existing between the first tub and the intercepting wall and its outlet communicating with the inside of the second box structure.