Radiant electric heater assemblies

A radiant electric heater assembly for a glass ceramic top cooker comprising:

• a glass ceramic cooking surface;
• four radiant electric heating elements;
• a thermal cut-out device for protecting the glass ceramic cooking surface from excessive temperatures;
• and
• means associated with the thermal cut-out device adapted to automatically connect the four heating elements in parallel with each other to give a first power level setting, which in the event of the thermal cut-out device detecting a first predetermined temperature is adapted to automatically connect the heating elements in a lower power configuration in which the elements are connected as two elements connected in series with each other and connected in series with a pair of elements connected in parallel with other, and which when the thermal cut-out subsequently detects a second predetermined temperature lower than the first predetermined temperature is adapted to automatically reconnect the heating elements in the configuration of the first power level setting.