HEATING COOKER

PROBLEM TO BE SOLVED: To provide a heating cooker in which a water containing capacity is increased without making the entire cooker large-sized and in which steam can be stably condensed.SOLUTION: There is provided the heating cooker in which the steam generated from inside an inner pot 11 is guided outside the inner pot 11 through a steam guiding pipe 53, the steam guided by the steam guiding pipe 53 is cooled and condensed by cooling water inside a water tank 20, and the condensed water is stored in the water tank 20. A nearly rectangular body lower part is constituted by attaching the water tank 20 to a lower housing 10 in which the inner pot 11 and the water tank 20 are freely attachably/detachably provided. The water tank 20 constitutes a part of the exterior of the body lower part by being formed in a size enabling each of a part of adjacent two faces of the side faces of the body lower part to be constituted. The face opposite to the water tank 20, of the lower housing 10 is formed in a projected shape along the outer peripheral shape of the inner pot 11. Also, a face opposite to the lower housing 10, of the water tank 20 is formed in a recessed shape along the projected opposing face of the lower housing 10. The projected and recessed shape of opposing faces are each formed with a plurality of faces.