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Apparatus and installations, for heating, cooling and ventilation; Heating boilers; Heating elements; Heating installations; Hot plates; Air reheaters; Portable electric heaters; Mobile heating apparatus; Heat accumulators; Hot air ovens; Feeding apparatus for heating boilers; Hot air apparatus; Heating apparatus, electric; Hand drying apparatus for washrooms; Water heaters; Burners; Gas burners; Oil burners; Boilers being parts of central heating installations; Boilers for use in heating systems; Boilers for central heating installations; Solar thermal collectors [heating]; Heating filaments, electric; Heat pumps; Radiators, electric; Electric radiators for heating buildings; Central heating radiators; Dampers [heating]; Stoves [heating apparatus]; Boiler pipes [tubes] for heating installations; Solar thermal collectors [heating]; Heating installations [water]; Radiators [heating]; Humidifiers for central heating radiators; Thermostatic valves [parts of heating installations]; Heating apparatus for solid, liquid or gaseous fuels; Coils [parts of distilling, heating or cooling installations]; Cooling appliances and installations; Air cooling apparatus; Cooling installations for water; Cooling installations for liquids; Ventilation [air-conditioning] installations and apparatus; Filters for air conditioning; Fans [air-conditioning]; Air-conditioning installations; HVAC systems (heating, ventilation and air conditioning); Heat regenerators; Water heaters for household purposes; Bath tubs; Shower pans