| 摘要 |
<P>PROBLEM TO BE SOLVED: To miniaturize an apparatus, reduce the weight, and increase efficiency, by supplying heat to hot water supply, heating, and a bath from a single heat source in combination of a heat exchanger for hot water supply and a heat exchanger for recovering latent heat. <P>SOLUTION: This hot-water supply apparatus comprises the heat exchanger 15 for hot water supply and the heat exchanger 16 for recovering latent heat. The heat exchanger 15 for hot water supply and the heat exchanger 16 for recovering latent heat are interconnected in series to form a hot water supply circuit that extends from a water supply passage 1 to a hot-water outlet passage 3 through the heat exchanger 16 and the heat exchanger 15. A hot-water supply circulation circuit 19 is formed which branches from the hot-water outlet passage 3, supplies hot water to a heat exchanger 18 on the utilization side via a circulation pump 17, then returns it to the heat exchanger 16, and extends from the heat exchanger 16 to the heat exchanger 18 on the utilization side through the heat exchanger 15 via the circulation pump 17. Utilization of the hot water supply circuit, utilization of the hot-water supply circulation circuit, or simultaneous utilization of the hot water supply circuit and the hot-water supply circulation circuit can be selected. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
