The present invention provides a hot-pump device furnishing hot water, wherein the water-furnishing can be prevent from breaking off, and the energy efficiency can be improved independent of the mode of hot water furnishing. The hot-water-furnishing hot-pump device(100) comprises: a hot pump circuit (90) with cold water as the media, and the hot water storage (21) used for storing the water afterbeing heated in the circuit. The hot water produced in the circuit and stored in the storage storing hot water is supplied to the hot water-using terminal (19,36a). If the supply is cut in the set time, then the circuit still runs, and the water heated by the circuit is stored in the water storage, when the hot water-using terminal is offered with hot water by the circuit.