| 摘要 |
An electrically heated domestic water vessel 10 comprises a receptacle which houses a flat-plate heater 30, supported above and spaced from the floor of the receptacle by legs 44 so that both major surfaces of the heater can contact the water so as to reduce energy consumption. Moreover, there is a significant reduction in the energy wastage associated with the transmission of thermal energy otherwise than into the water. The heater typically comprises an element 42 printed or otherwise deposited on a substantially rigid substrate, but it may alternatively comprise a distributed area metallic oxide coating on a substrate. Preferably, the heater is supported so as to accommodate the heating of relatively small amounts of water, such as a single cupful. |
