| 摘要 |
An improvement in a water immersion thermostat having a longitudinal sleeve for being deeply substantially-immersed in water of a storage water heater, the improvement including a thermal fuse disposed within the longitudinal sleeve, for single-use cutting of electrical connection upon temperature of the water within the storage water heater exceeding a pre-adjusted temperature threshold, and serial wiring of the thermal fuse between the power supply and the heating element of the storage water heater, thereby permanently cutting the power supply from the heating element upon presence of extreme temperature deep in the storage water heater.
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