Abstract: A programmable electronic control controls water flow from a first electronically controlled valve assembly which receives water from the first water source, e.g. cold water. A second electronically controlled valve assembly is under the control of the programmable electronic control and controls the outflow of water received from a second water source, e.g. hot water. A mixing chamber assembly receives and mixes water coming from the first valve assembly and from the second valve assembly. A third electronically controlled valve assembly is connected to the mixing chamber assembly through a pipe and is under the control of the programmable electronic control. A temperature sensor assembly is connected to the programmable electronic control and senses water temperature at the third valve assembly. The temperature sensor provides a signal to the programmable electronic control representing the water temperature of the blended water sensed at the third valve assembly.