11 heat exchangers; heat exchangers; heat accumulators; hot air cooking ovens; air cooling apparatus; air-conditioning installations; ionization apparatus for the treatment of air or water; feeding apparatus for heating boilers, namely, boiler feedwater hot water tanks and boiler feedwater heat pumps; refrigerating cabinets; cooling fan systems for wall ovens; floor heating apparatus; mixer faucets for water pipes; heat accumulators; heat regenerators, namely, regenerative heat exchangers; refrigerating chambers, namely, refrigerating cabinets; heating boilers; electrical induction heating apparatus for heating metal workpieces; gas condensers other than parts of machines; freezers; heating elements; air-purifying apparatus and machines; regulating accessories for water supply, namely, metered valves; water heaters; water coolers; fuel economizers, namely, energy recovery ventilators; evaporators; furnaces, other than for laboratory use; Cooking ovens, other than for laboratory use; cooling fan systems for wall ovens; refrigerating appliances and installations; gas condensers, other than parts of machines; steam industrial boilers, other than parts of machines; incinerators; liquid coolers, namely, water coolers; pasteurizers for use in food, beverage, pharmaceutical, petrochemical, spatial, and chemical industries; hot plates; heating plates, namely, hot plates; heat pumps; water intake apparatus, namely, faucets; air valves for steam heating installations; air-purifying apparatus and machines; water purifying apparatus and machines; cooling installations for water; nuclear reactors; solar reactors; air reheaters, namely, electric heating fans; water heaters; refrigerating shipping containers; heat regenerators namely, regenerative heat exchangers; refrigerators; refrigerating apparatus and installations; air cooling apparatus and cooling installations for water. liquid coolers, namely, water coolers; pressurized drainage water treatment tanks; mixer taps for water pipes; drying apparatus and installations, namely, drying apparatus for chemical processing; electric hot air hand dryers; coils as parts of distillation, heating or cooling installations; fans for air-conditioning installations; sterilizers; stands for loading cooking ovens, namely, a base stand for holding cooking ovens; biogas fermentation reactors, namely, percolating fermenters and dry fermenters; draft regulators for heating, namely, barometric dampers for regulating the draft on oil-fired furnaces, boilers, and water heaters; Distillation apparatus not for scientific purposes in the nature of refining towers for distillation; tubes for heating boilers; thermostatic valves as parts of heating installations