Shower water heater

An electric shower water heater unit for connection to a water supply and a mains electricity supply, the water heater unit comprising a housing having a shower water outlet to which a shower hose is connected or connectable;

• an electric water heater which is housed in the housing and which is fluidly connected or connectable to a water supply outlet of the water supply and electrically connected or connectable to the mains electricity supply, the electric water heater supplying water to the shower water outlet of the housing;
• a user-operable controller for controlling a temperature and a flow rate of water supplied to the shower water outlet of the housing, and a control circuit which is housed in the housing and which controls the electric water heater based on inputs received from the user-operable controller;
• the user-operable controller including a touch-pressure sensitive element for pressing by a user and which is in communication with the control circuit, the control circuit only controlling the electric water heater when a pressure imparted by a user pressing the touch-pressure sensitive element is equal to or greater than a predetermined value, and further comprising an audio output circuit so that, when the pressure imparted by a user touching the touch-pressure sensitive element is less than the predetermined value, the control circuit controls the audio output circuit to output an audible indication corresponding to a function associated with the touch-pressure sensitive element.