AN ELECTRICAL HEATING DEVICE

摘要

This invention relates to an electrical heating device 10 and to an installation including such a device 10. The heating device 10 is for use in a heating apparatus, for e.g. a geyser and includes: a mounting formation 12 for removably mounting the device 10 to the geyser; a first heating element 14.1 which is connected to the mounting formation 12 and which includes a first pair of electrical connection terminals 20.1 which are connectable to a first power supply; and a second heating element 14.2 which includes a second pair of electrical connection terminals 20.2 which are connectable to a second power supply, independent of the first power supply. The first and second heating elements 14 are electrically insulated from each other in a configuration in which the first and second power supplies are simultaneously connectable to the respective heating elements 14.