PROBLEM TO BE SOLVED: To provide a bath hot water supply device capable of improving warm feeling in bath with a relatively low bathtub hot water temperature.SOLUTION: A bath hot water supply device 1 includes a fine bubble generation device 12 that is provided in the middle of a circulation flow passage 5 taking out bathtub hot water from a bathtub 100 and returning the bathtub hot water to the bathtub 100, and generate fine bubbles by mixing gas with bathtub hot water flowing in the circulation flow passage 5 and heating means 15 that heats gas supplied to the fine bubble generation device 12. The heating means 15 heats the temperature of gas supplied to the fine bubble generation device 12 to a temperature higher than a bathtub setting temperature.COPYRIGHT: (C)2015,JPO&INPIT【課題】比較的低い浴槽湯温での入浴においても、暖まり感を向上できる風呂給湯装置を提供すること。【解決手段】本発明の風呂給湯装置1は、浴槽100から浴槽湯を導出して当該浴槽湯を浴槽100に戻す循環流路5の途中に設けられ、循環流路5を流れる浴槽湯に気体を混合することで微細気泡を生成する微細気泡発生装置12と、微細気泡発生装置12に供給される気体を加熱する加熱手段15と、を備える。加熱手段15は、微細気泡発生装置12に供給される気体の温度を浴槽設定温度より高い温度に加熱する。【選択図】図1
