AUTOMATED BATH FURNACE WITH HOT WATER SUPPLIER

PURPOSE:To shorten drop-in time by connecting a bath hot water supply passage to a bath tank independently of a circulation passage and enabling automated drop-in hot water supply while circulation judgement is performed. CONSTITUTION:A bath furnace where a bath water supply passage 7 is connected to a bath tank 6 independently of a circulation passage performs bath tank remaining water decision where a water flow switch 19 is turned on if there is existent any remaining water in the bath tank 6 and it is not operated if the remaining water is not existent when an automatic switch and a switch of a circulation pump 21 is turned on. If there is no remaining water, a drop-in solenoid valve 14 is opened to start drop-in hot water supply from the bath hot water supply passage 7 to the bath tank 6. Once the hot water supply is performed up to a circulation port of the bath tank 6 by said hot water supply, bath tank water is circulated and hereby there is performed circulation decision where a water flow switch 19 is operated, and also in that operation the hot water supply is continued as it is. Hereby, once the water flow switch 19 is turned on, the circulation pump 21 is interrupted, and the hot water supply to the bath tank 6 is performed up to a set water level while a water level sensor 20 detects the bath tank water level. On the set water level is reached, the water level sensor 20 detects it and hereby the drop-in solenoid valve 14 is closed to interrupt the hot water supply. Thus, drop-in rest time is eliminated to shorten hot water feeding time.