Apparatus for heating, namely, floor and pavement heating apparatus, aquarium heaters, central heating radiators, electric beverage heaters, gas water heaters, space heating apparatus, heating apparatus for vehicles; steam generating apparatus, namely, steam generating installations, Power-operated vaporizers for industrial, commercial, or household purposes, steam generators; cooking apparatus, namely, cooktops, Microwave ovens, Cooking rings, Cooking tunnels; refrigerating apparatus, namely, refrigerating appliances and installations, refrigeration equipment, namely, food and beverage chilling units; drying apparatus, namely, electric hand drying apparatus for washrooms, drying apparatus for chemical processing, drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems; ventilating apparatus, namely, ventilating fans for commercial, household, and industrial use, turbine ventilators, air-conditioning, air cooling and ventilation apparatus and instruments, heat recovery ventilators; apparatus for water supply and sanitary purposes, namely, water softening apparatus and installations; water purification and filtration apparatus, regulating accessories for water supply, namely, metered valves for regulating water and pressure regulators for sanitary installations