Class I - Dangerous
The showerhead hot water heaters are attached to the shower's water supply piping and connected to a household's electrical supply source when central hot water is not available. Undersized wiring prevents this unit from being suitable in wet locations, the rotary switch is not waterproof and the installation instructions fail to recommend an electrical junction box, but instead recommend tape. Another hazard is the plastic enclosure, which poses an electrocution and fire hazard.