PROBLEM TO BE SOLVED: To provide a sterilizing and disinfecting washer in which fuel being a heat source is substantially completely burnt, soot or the like is not attached to a coil or the like, by which heat exchange efficiency becomes higher.SOLUTION: In a sterilizing and disinfecting washer A according to the present invention, a coil 24 formed of fin tube is erected so as to set a central axis of the coil in a vertical direction, a combustion promotion chamber 14 is provided below the coil, and a burner 15 which sends heated gas to the combustion promotion chamber 14 from its lateral direction is installed. An inner wall of the combustion promotion chamber 14 has a cylindrical shape whose central axis is in a vertical direction, and is constituted such that the heated gas sent into the combustion promotion chamber 14 is swirled and incomplete combustion gas contained in the heated gas is re-heated in the combustion promotion chamber 14.COPYRIGHT: (C)2015,JPO&INPIT【課題】本発明は、熱源となる燃料がほば完全燃焼され、コイル等に煤などが付着することなく、これにより熱交換効率が高い殺菌消毒洗浄機を提供するものである。【解決手段】本発明に係る殺菌消毒洗浄機Aは、フィンチューブにより形成したコイル24を、そのコイルの中心軸が上下方向になるように立設し、前記コイルの下方に燃焼促進室14を設け、前記燃焼促進室14に対してその横方向から加熱ガスを送り込むバーナ15を設置し、前記燃焼促進室14は、その内壁が、中心軸が上下方向の円筒状をなしていて、当該燃焼促進室14に送り込まれた加熱ガスを旋回させると共に、当該燃焼促進室14において加熱ガス中に含まれる不完全燃焼ガスが再加熱させるように構成したものである。【選択図】 図1