| 摘要 |
An immersion heater assembly (1 ) is provided comprising an immersion heating element (4) configured for introduction into an open topped mug (3) or the like and a carrier (5) for supporting the heating element (4) in a generally- upright operative orientation with the carrier uppermost. An electric circuit for operatively supplying electrical energy to the heating element (4) includes a switch (6) for opening and closing the electric circuit, and temperature activated means (7) for causing opening of the electric circuit when a predetermined temperature of at least 75 degrees centigrade and less than the boiling point of water is detected in a body of liquid in which the heating section of the element is located. Various arrangements and configurations of immersion heater assemblies are provided including separate stands (15,2S) for holding them in their operative positions.
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