| 摘要 |
<p>PURPOSE:To generate heat by energizing a sheathed heater installed in a warm water tank and to generate warm water by directly heating water by covering the heater, the connecting part of wirings and the wirings with films. CONSTITUTION:Wirings 3 are mounted at a sheathed heater 1, its connecting part 2 and the wirings 3 are covered with a film 5 of synthetic resin, etc., and hence waterproofed and ground-fault prevented. Such a sheathed heater 1 and wirings 3 are installed in a warm water tank in which water is filled and energized to directly heat water by heat generated from the heater 1 to make the warm water. The warm water is used for bathing, the wash or a disinfection, etc., by further raising it to a high temperature. Thus, the heater 1 which cannot be heretofore used under water is waterproofed to form a water heater in a submerged type to be reduced in size and weight.</p> |
