Descriptors | Household equipment, Overload (electric), Electrical household appliances, Acceptance (approval), Water heaters, Inspection, Temperature measurement, Domestic safety, Pressure, Electric shocks, Protected electrical equipment, Thermocouples, Marking, Heating tests, Rated voltage, Classification systems, Temperature, Test pressure, Thermostats, Domestic, Pressure testing, Earthing, Test equipment, Stationary, Fire safety, Electric heaters, Volume, Heaters, Testing conditions, Hazards, Cut-out devices, Instructions for use, Safety devices, Hydraulic tests, Performance testing, Electrical safety, Storage water heaters, Ratings |