| 摘要 |
PURPOSE:To enable hot drinking water that has been freshly heated to a desirably high temperature to be continuously supplied at any time and instantly, by heating a drinking water using a hot water in a hot water tank of an electrical heating type water heater, and by further heating said drinking water by a heater immediately before service. CONSTITUTION:Part of a hot drinking water service pipe 7 communicated with a water supply pipe 2 is passed through the hot water tank 1 that contains and supplies hot water for washing and cleaning. Immediately before a hot water service faucet 8 is provided the heater 9 to further heat to a desired temprature a hot water B in the hot drinking water service pipe 7 which has been already heated by a hot water A. Thus from the hot water tank 1 is supplied the suitably heated water for washings and cleaning, while from the hot drinking water service pipe 7 is supplied the hot drinking water that has been freshly heated to a desirably high temperature. |
