Patent ID: 6960078

Claim:
A liquid heating cooker comprising: a box-shaped vat into which a heating medium is filled and which has left and right side wall portions, a front wall portion, a rear wall portion, and a bottom wall portion; and a heating means provided opposing the bottom wall portion from the outside, for heating the bottom wall portion by combustion so as to cook foods within the vat; wherein a plurality of panels making up the vat are welded to one another and form a single unit; wherein a left panel forming the left side wall portion and a right panel forming the right side wall portion are bent, each of the left side wall portion and the right side wall portion is provided with an integral heating edge wall portion that is coplanar with the bottom wall portion and each of the left side wall portion and the right side wall portion is provided with an integral front edge wall portion on a plane that is coplanar with that of the front wall portion, and wherein left and right ends of a bottom panel forming the bottom wall portion are each welded to an end portion of one of the heating edge wall portions, and at least the heating edge wall portions and the bottom panel are coplanar; wherein the bottom panel is bent and also serves as part of the front wall portion; and the left and right side ends of the front wall portion of the bottom panel are each welded to an end portion of one of the front edge wall portions, and at least the front edge wall portions and the front wall portion of the bottom panel are coplanar.