| 摘要 |
PROBLEM TO BE SOLVED: To promote the energy saving by allowing a user to experience the energy-saving heat insulation more easily than the normal heat insulation. SOLUTION: A hot-water storage container has a standard heat-insulation mode to be executed without selection and a selected heat-insulation mode selected to be executed on the control for heating the content liquid in the hot-water storage container to be boiled so that the heated liquid is used under heat-insulation. The hot-water storage container has a control means for such heat-insulation control that the temperature of water below the boiling temperature is not constant in the standard heat-insulation mode, and the average heat-insulation temperature per unit time in the mode is lower than the heat insulation temperature in the selected heat-insulation mode. COPYRIGHT: (C)2007,JPO&INPIT
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