| 摘要 |
PROBLEM TO BE SOLVED: To provide a regeneration construction method for a heater-heating type water heater which allows an existing heater-heating type water heater to be easily replaced by a heat pump type water heater.SOLUTION: A regeneration construction method is intended for a heater-heating type water heater which allows a use of an existing hot water storage tank of the heater-heating type water heater and further has piping for introducing heated water from a heat pump unit into a high-temperature region in the hot water storage tank, when the heater-heating type water heater which heats an inside of the hot water storage tank by an energized electric heater, is outdated and disposed or is replaced by a new heater-heating type water heater for power saving. |
