| 摘要 |
<p>PURPOSE:To contrive reuse of heat, by a method wherein a heat source such as used hot water is stored in a hot water tank as hot water through a heat exchanger by combining the heat exchanger with the hot water tank which is supplied as the hot water. CONSTITUTION:Hot water of a bathtub 1 is circulated through primary piping 3 by operating a circulating pump 4. Simultaneously with the above cold water supplied from a water supply source 8 of the inside of a hot water tank 5 is circulated through secondary piping 6 by operating a circulating pump 7. With this construction, heat of hot water in the inside of the bathtub circulating in the primary piping 3 is transferred to cold water passing through the secondary piping 6, in a heat exchanger 2. Hot water in the hot water tank 5, whose temperature has risen in this manner is supplied through hot water supply piping 9 for a kitchen and the bathtub use after it is heated by an auxiliary heating device and risen up to an appropriate temperature according to necessity on the following day.</p> |
