11 heating installations and components, namely, boilers; heating elements; heating elements for clothes dryers, hair dryers, stoves, heaters, toasters; cooking installations and components, namely, cooking ovens, gas stoves, roasting spits for cooking ovens, ventilation hoods for stoves; cooling installations and components, namely, cooling installations for water, air conditioning installations, air-conditioning apparatus, evaporative air coolers; drying installations and components, namely, laundry drying machines, drying apparatus for chemical processing, drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems, hair dryer diffusers; ventilating installations and components, namely, ventilating fans for commercial and industrial use, ventilating exhaust fans, heat recovery ventilators, turbine ventilators, ventilating louvers