To provide a hot water sprayer for a floor of a bathroom in which hot water of a set temperature or higher can be sprayed on the floor of a bathtub to warm and in which a person can be comfortably bathed.

The hot water sprayer comprises a hot water spraying nozzle part 11 provided in a hot water distributing unit 1 and installed to be opposed to the floor 5 of the bathroom. The distributor further comprises a temperature sensing circuit 4a for sensing the temperature of the hot water to be supplied to the unit 1, and an announcing means 4c for announcing an arrival at the set temperature when the hot water arrives at the set temperature previously input to the circuit 4a.