PURPOSE: To prevent a user from getting burned even if the user does not know how to operate a bathroom operation panel, by controlling the hot-water supply temperature according only to the set temperature while a human body sensor outputs detection signals.

CONSTITUTION: A bathroom operation panel 2 is provided with a hot-water tap supply temperature setting device 4 by which temperature of hot-water supplied from a hot-water faucet is set, a bathtub temperature setting device 6 by which temperature of hot-water supplied to a bathtub is set, an indicator 9 on which both set temperatures are indicated in two rows, and in addition, a human body sensor 7 which detects the fact that a person enters a bathroom. When the human body sensor 7 detects the fact that a person enters the bathroom, the upper limit of hot-water tap set temperature is set at 45°C, for example, at the same time output of a hot-water tap set temperature from a kitchen operation panel is cut off. When the present set temperature is not lower than the upper limit, the set temperature is forcibly revised to 45°C, and set temperature from the bathroom operation panel 2 is limited to 45°C or lower. Temperatures and characters of 'preference' as well are indicated on the indicator 9.