【Task】 Although it is small, it easily generates heat with a small amount of heat required by pet animals, and it is easy and easy to maintain, and it can be installed and moved in a narrow space of the user's own house, and it is inexpensive. The challenge is to provide an enzyme thermal bath for pet animals. SOLUTION: The bathtub was a double bathtub of an outer tank and an inner tank, and the wall of the inner tank was a combination of a flat object in which a wire mesh was covered with a cloth-like cover. In addition, inclusions are provided in the gap between the side walls of the outer tank and the inner tank and / or in the gap between the bottom side wall of the outer tank and the inner tank, and an air layer having a predetermined size is provided in the gap between the outer tank and the inner tank, and ventilation can be performed. I did. Furthermore, we decided to use a commercially available plastic container for the outer tank. [Selection diagram] Fig. 1【課題】 小型でありながら愛玩動物が必要とする程度の少熱量の温熱の発生しやすい、さらに、メンテナンスの簡単・容易な、かつ、使用者自身の家屋の狭い場所にも設置・移動可能で、そのうえ安価な愛玩動物用の酵素温熱風呂を提供することを課題とする。【解決手段】 浴槽を外槽と内槽の二重槽とし、内槽の壁には、金網を布状の覆いで覆った平面状物を組み合わせた物を用いた。また、外槽と内槽の側壁間の間隙およびまたは外槽と内槽の底側壁間の間隙に、介在物を設け、相互の間隙を所定の大きさの空気層を設け、かつ換気ができるようにした。さらに、外槽には市販のプラスティック製の容器を利用することにした。【選択図】 図1