| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a closed circulation type hot water supply device capable of improving total efficiency by keeping a hot water storage temperature. <P>SOLUTION: This hot water supply device includes a closed circulation type hot water storage tank 30 capable of storing raw water supplied from a raw water supply section 50 and supplying the water stored in a circulation warm water region formed on its upper section to a hot water supply section 21 through a circulation hot water supply pipe conduit 22, a heat pump 40 for heating the water taken from the hot water storage tank 30 and supplying the same to the circulation warm water region of the hot water storage tank 30, and a water intake section switching mechanism 34 for allowing the water to selectively flow into the heat pump 40 from one of an upper intake section 31 disposed at an upper section of the hot water storage tank 30 and a lower intake section 32 disposed at a lower section of the hot water storage tank 30. <P>COPYRIGHT: (C)2011,JPO&INPIT |
