| 摘要 |
<p>PURPOSE:To enable a hot water to be discharged even in case of discharging a large volume of hot water without having any relation with a temperature of hot water by a method wherein a position of interface between an accumulated hot water and an accumulated cold water is located at a lower part in a tank as a more difference is found between a water supplying temperature and a predetermined hot water temperature. CONSTITUTION:In a winter season where a substantial time is required for increasing a temperature of supplied water to the predetermined hot water temperature to due to a low water supplying temperature ti from the water supplying passage 1, an interface WX is positioned at a lower part in the tank as a difference in these temperatures DELTAt is increased, thereby an accumulated hot water WH having a sufficient amount of performing a continuous supplying of hot water in a stable manner at a substantial predetermined hot water temperature of to under a temporary high volume of hot water discharged is always kept in the tank. In case that a supplying water temperature is high, the interface WX is positioned at a higher location than before and a large amount of non-required hot water accumulated is avoided and a loss of radiated heat is reduced.</p> |
