| 摘要 |
PURPOSE:To equalize temperatures of hot water in a bathtub, by a method wherein a nozzle feeding city water is made to open within a connecting pipe connecting the bathtub and a heater and the hot water in the heater is made to circulate forcibly. CONSTITUTION:A nozzle 5 for a jet stream is fixed inside a connecting pipe 3 connecting a bathtub 1 of an outer heater type bath and a heater 2 by facing the nozzle 5 toward a heater side. As negative pressure is generated through a high speed jet stream to be spouted from the tip of the nozzle, cold water at the bottom sucked up through the connecting pipe 3 is fed to the heater 2, heated hot water is returned to the bathtub 1 through a connecting pipe 4 and circulated when an opening and closing valve 8 of city water piping 7 is opened by pouring water into the bathtub 1, temperatures of hot water in the bathtub is equalized. |
