| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water supply device enabling to easily improve the heat recovery efficiency of a heat pump unit. <P>SOLUTION: The hot water supply device comprises a reheating unit 6 for making heat exchange between bathtub water (BW) flowing in a bathtub water circuit 44 and tank water to reheat the bathtub water, and a heat recovery unit 8 for making heat exchange between bathtub water flowing in a second bathtub water circuit 50 and refrigerant flowing in a refrigerant circuit to recover the heat of the bathtub water via the heat pump unit 4 using a hot water supply unit 2. It has a water delivery port 62 for delivering the bathtub water from a bathtub 24 into the second bathtub water circuit, and a water return port 60 for returning return water (CW) of the bathtub water whose heat is recovered by the heat recovery unit, from the second bathtub water circuit to the bathtub. The water return port is positioned above the water delivery port. <P>COPYRIGHT: (C)2009,JPO&INPIT |
