| 摘要 |
A water heater for supplying hot water, to a domestic or office environment, the heater comprising a storage vessel (10) to retain water, a plurality of heating elements (14-16) within the storage vessel said elements (14-16) being spatially separated from each other in a vertical direction; a plurality of temperature sensors (17-19) within the storage vessel (10) measuring the water temperature a heating element (14-16) being associated with at least one sensor (17-19); a control unit operably linked to each element and each sensor, the control unit comprising data receiving means to receive data from the sensors, a storage area to store system data, processing means to compare the sensor data with the system data, a decision making means to determine activation or de-activation of the elements (17-19). |
