| 摘要 |
PROBLEM TO BE SOLVED: To provide an attachment structure that can easily change an existing heater-heating type water heater to a heat pump type water heater.SOLUTION: In a heater-heating type water heater having an electric heater in a hot water storage tank, a heat introduction pipe accessory holder is arranged to guide heat from a heat pump unit to an electric heater holder of the tank and a high heat introduction port side of the heat introduction pipe from the heat pump unit in the hot water storage tank is arranged at a position higher than a low heat discharge port side so as to prevent a hot water temperature drop. In addition, the heat introduction pipe from the heat pump unit in the hot water storage tank is configured to have a low heat conductivity. |
