Instantaneous water heater for multi-phase operation, has heating coil, particularly bare-filament heating elements, where heating element pin is attached by welding, soldering or injecting at other end of heating coils

摘要

The instantaneous water heater (DH) has heating coil, particularly bare-filament heating elements. The heating coil (HA) of an instantaneous water heater has one end, which differs from an end of another heating coil (HB). A heating element pin is attached by welding, soldering or injecting at other end of former heating coil or later heating coil. The former ends of the heating coil are electrically connected to a neutral point. The former ends (HC,HD) of the heating coils have different forms. An independent claim is also included for a method for manufacturing of an instantaneous water heater.