JPH0510575B

PURPOSE:To improve the property of safety by reducing the surface temperature of a hot-water supply tube and permit to know hot-water supply easily by a method wherein the surface of flexible tube is covered by a material having low heat conductivity and a conductor, operating a light-emitting device, is buried in the material. CONSTITUTION:The surface of the flexible tube 1 is covered by the tube 10 of silicone and an electric wire 11 is passed through the silicone tube. A hot-water supplying form switching device 13, accommodating an electric bulb 12, is provided at the other end of the flexible tube 1 and two kinds of hot-water supplying forms, such as shower type and water column type, can be selected by the hot-water supplying form switching lever 6 of the switching device 13. In case hot-water temperature is 80 deg.C, the surface temperature of the flexible tube 1 becomes 79 deg.C and the same temperature of the tube 10 becomes 56 deg.C. In this case, a hot-water supplier is set so as to obtain 40 deg.C in case there is no tube 10 of silicone, which is covering the flexible tube 1, and, as a result, the hot-water of 41.2 deg.C could be obtained. The amount of consumption of gas can be saved in such degree. On the other hand, when hot-water is flowed through the tube, the electric bulb 12, attached to the hot-water supplying form switching device 13 through the electric wire 11 in the tube 10, may be lightened and the supply of hot-water may be felt through vision.