| 摘要 |
PURPOSE:To perform heating for a bathroom and a draining floor by a simple structure, and to make it unnecessary to provide a special temperature controlling device for a heating mat, by connecting a hot-water forced circulation pipeline for a bathtub and a heating pipeline for a heating mat in series. CONSTITUTION:Hot-water heated by an outdoor heater 3 is forcibly sent by a circulation pump 1, and is injected into a bathtub from an injection and suction device 10 provided on the bottom of a bathtub 2. At the same time, the water in low temperature in the bottom part of a bathtub is sucked and is fed into a heating mat 7 to heat it through a connecting pipe 11. The water is returned again to the outdoor heater 3 afterwards. When the heating may is not used, a bypass valve 13 is shut off. A check valve 16 is changed over when the heating mat is to be heated in the first priority. |
