PROBLEM TO BE SOLVED: To prevent heated water from being jetted when performing cold water mist operation, in a mist sauna device which includes a mist nozzle 16 facing a bathroom BR, a water supply passage 17 for supplying water to the mist nozzle 16, a fluid-fluid heat exchanger 18 interposed in the water supply passage 17, and a heating medium circulation passage 19 in which a heating medium heated by a heat source machine 8 is circulated, which has water temperature detection means 23 in a portion of the water supply passage on the downstream side of the fluid-fluid heat exchanger 18 and which can choose between hot water mist operation for heating the water supplied to the mist nozzle 16 via the fluid-fluid heat exchanger 18 and jetting it from the mist nozzle 16 and cold water mist operation for jetting the water supplied to the mist nozzle 16 without heating it from the mist nozzle 16.SOLUTION: Water temperature detection means 23 is located above an outlet of a fluid-fluid heat exchanger 18, and when cold water mist operation is selected, the start of the cold water mist operation is delayed until the detection temperature of the water temperature detection means 23 becomes equal to or lower than predetermined temperature.COPYRIGHT: (C)2015,JPO&INPIT【課題】浴室BRに臨むミストノズル16と、ミストノズル16に水を供給する給水路17と、給水路17に介設した液々熱交換器18と、熱源機8で加熱された熱媒体を循環させる熱媒循環路19とを備え、液々熱交換器18の下流側の給水路の部分に水温検出手段23を設けたミストサウナ装置であって、ミストノズル16に供給する水を液々熱交換器18を介して加熱してミストノズル16から噴霧させる温水ミスト運転と、ミストノズル16に供給する水を加熱せずにミストノズル16から噴霧させる冷水ミスト運転とを選択可能としたものにおいて、冷水ミスト運転を行うとき、加熱された水が噴霧されることを防止できるようにする。【解決手段】水温検出手段23を液々熱交換器18の出口より上方に位置させ、冷水ミスト運転が選択されたとき、水温検出手段23の検出温度が所定温度以下になるまで冷水ミスト運転の開始を遅らせる。【選択図】図1
