The utility model relates to satisfying the vital needs of a person, namely to devices for taking hot baths, in particular to portable bath vats, which can be used, for example, in the open air in recreation areas for the purpose of carrying out relaxation water procedures and / or hygienic baths. In a hot bath device that includes a metal bowl and oven. containing a bottom and walls containing horizontal rows located at an angle to each other, each of the rows is made with flat trapezoidal faces, conjugated to each other by the lateral sides, and the smaller base of the trapezoidal face of one row is mated with the large base of the trapezoidal face of the lower row, while the conjugation edges are made with the formation of ribs, and the bottom is made flat in the form of an equilateral polygon, the sides of the polygon are conjugated with the lower bases of the trapezoidal edges of the lower row, as well as a furnace made in the form based on a three-dimensional polyhedral figure located on the outside of the container in its lower part and rigidly connected to the walls of the container, according to the claimed solution, a cavity is made in the upper part of the furnace with the possibility of filling it with liquid, the said cavity is associated with the lower part of the container. In the lower part of the metal container, there are holes connected to the furnace cavity and a drain hole, and fasteners for mounting the seat are fixed on the walls of the container from the inside. The technical result is manifested in improving the uniformity of water heating in the container and reducing the temperature fluctuations of water in the container when the temperature of the heat source changes.Полезная модель относится к удовлетворению жизненных потребностей человека, а именно к устройствам для принятия горячих ванн, в частности к переносным банным чанам, которые могут использоваться, например, под открытым небом в местах отдыха с целью проведения релаксационных во
