| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hot water storage type water heater capable of simplifying and facilitating the construction work and improving safety to electric leakage. <P>SOLUTION: In this hot water storage type water heater 20, a water supply connection port (water supply pipe connecting portion ) 5 connected with a water supply pipe 3, and a hot water supply connection port (hot water supply pipe connecting portion ) 8 connected with a hot water supply pipe 4 are disposed in an electrically insulating state with respect to a housing 20a. A part of a first length (100 cm) at a hot water storage tank 1 side, from the water supply connecting port 5 of a tank water supply pipe (water supply-side inner pipe) 6, and a part of a second length (50 cm) at a hot water storage tank 1 side from the hot water supply connecting port 8 of a tank hot water supply pipe 7 (hot water supply-side inner pipe) are made of an electrically insulating material. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
