Heat pump water heater

The utility model discloses a heat-pump water heater, which comprises a shell, a heat exchanger, a heat exchanger and a heat exchanger, the inner container is arranged in the inner cavity; the water pan covers the top of the inner cavity, and the water pan is provided with a mounting hole which is through up and down; and the pressing tool is detachably connected to the mounting hole, and the pressing tool is detachably connected to the top of the inner container. According to the heat pump water heater, the pressing tool is connected with the top of the inner container so that the relative positions of the inner container and the shell can be fixed, then the polystyrene foam is filled between the inner container and the shell, and therefore the situation that the polystyrene foam extrudes the inner container after being expanded, and consequently the inner container deviates is avoided; it is ensured that the gap between the outer side wall of the inner container and the inner side wall of the inner cavity i