Abstract: The present invention relates to a powerless hot water pumping apparatus which receives cold water through a supply pipe equipped with a backflow prevention check valve, and which generates hot water and powerlessly discharges the hot water through a discharge pipe. The powerless hot water pumping apparatus comprises an electric heater which generates heat when supplied with electric power; an upper cylinder which accommodates the electric heater therein, to the top of which the supply pipe is connected, wherein a steam generating space of a predetermined size is interposed between the inner surface of the upper cylinder and the electric heater; and a lower cylinder which is arranged beneath the upper cylinder, the top of which is in communication with the bottom of the upper cylinder through a connection passage, and to the bottom of the discharge pipe is connected.