| 摘要 |
PROBLEM TO BE SOLVED: To provide a water heater enabling a user to confirm the effect of heat recovery operation.SOLUTION: A water heater includes a hot water storage tank 1; a bathtub 3; a heat exchanger 4 exchanging heat between hot and cold water in the hot water storage tank 1 and hot and cold water in the bathtub 3; a display means 25; and a control means 18. The water heater is adapted to display, on the display means 25, information on the heat recovery amount in heat recovery operation for recovering the heat of hot water in the bathtub 3 to the hot and cold water in the hot water storage tank 1. A user can confirm the effect of heat recovery by displaying the information on the heat recovery amount. |
