| 摘要 |
PROBLEM TO BE SOLVED: To provide a water heater which achieves both temperature adjustment of bath water and energy utilization by combining reheating operation for raising the temperature of bathtub water and operation of bath heat recovery for utilizing thermal quantity of the bathtub water as thermal quantity for hot water supply.SOLUTION: A tank ECU2 selects and performs either of reheating operation by means of a reheating heat exchanger 41 and bath heat recovery operation by means of a bath heat recovery heat exchanger 51 in accordance with a bath target temperature and a temperature of bathtub water during execution of bath automatic operation and controls water temperature of a bathtub into the bath target temperature. |
