11
Drying apparatus and installations; Apparatus for drying; Hand drying apparatus for washrooms; Membrane purifying apparatus for the purification of water; Water purification installations; Water purifying apparatus; Water purifying apparatus and machines; Electric water purification filters for household purposes; Power filters for water purification [other than machines]; Water purifying units for producing potable water; Cooling appliances and installations; Cooling tanks for furnaces; Coolers for furnaces; Furnaces for central heating; Central heating apparatus; Installations for central heating; Central heating boilers; Gas fuelled central heating installations; Expansion tanks for central heating installations; Gas boilers for central heating; Gas fired back boiler units for domestic central heating; Heating boilers; Gas boilers; Boilers for use in heating systems; Boilers for central heating installations; Purification installations for sewage; Sewage treatment [purification] installations; Water purification, desalination and conditioning installations; Rainwater purification installations; Water softening installations; Water softening apparatus and installations; Water heaters [apparatus]; Water heaters; Circulators [water heaters]; Solar water heaters; Heaters for sink water; Gas fired water heaters; Water heaters and boilers; Induction water heaters; Ionization apparatus for the treatment of air; Ionization apparatus for the treatment of water; Water ionizers [for household purposes]; Ionization apparatus for the treatment of air or water; Ventilating fans; Room air fans; Roof fans; Ventilators for automobiles; Electric heating fans; Ventilating fans for commercial use; Ventilating fans for industrial use; Ventilating fans for household use; Fans [air-conditioning]; Fans for air conditioning apparatus; Electrical fans being parts of household airconditioning installations; Filters for air conditioning; Filters for use with apparatus for air conditioning; Filters for cleaning air; Filters for air purifiers; Air filters for household use; Ventilation [air-conditioning] installations and apparatus; Central air conditioning installations for household purposes; Domestic air conditioning installations; Fans [parts of air-conditioning installations]; Electric fans for personal use; Burners; Acetylene burners; Fuel burners; Gas burners; Distillation apparatus not for scientific purposes; Cooling installations; Storage water heaters; Hot water heaters; Heating apparatus and installations; Heating installations; Temperature control valves [parts of central heating installations]; Water control valves [level controlling] in cisterns; Gas boilers [other than parts of machines]; Gas fired back boiler units for domestic hot water systems; Stoves [heating apparatus]; Stoves for heating; Water filtering apparatus; Apparatus for filtering drinking water; Air purifying apparatus; Air cleaning apparatus; Cooling installations for tobacco; Industrial cooling installations; Sanitary apparatus and installations; Electric heaters; Heating apparatus, electric; Heating apparatus for gaseous fuels; Heating apparatus for liquid fuels; Heating apparatus for solid fuels; Washers for water taps; Radiators [heating]; Central heating radiators; Portable electric heaters; Heat generating apparatus; Shell heat exchangers; Heat exchangers for fireplaces; Evacuated heat pipe solar collectors [heat exchangers]; Heat exchangers, other than parts of machines; Pressure water tanks; Humidifiers for central heating radiators; Water conduits installations; Sanitary and bathroom installations and plumbing fixtures; Cooling apparatus and appliances; Cooling apparatus; Cooling installations for fluids; Sewage disposal plants; Water distributor armatures for heating; Air distribution units; Air filtering installations; Filters for use with swimming pools; Water softening apparatus; Electric water heating apparatus; Heating installations for fluids; Valves (temperature sensitive controls for automatically operating -) [parts of heating installations]; Heat regulating devices [valves] being parts of heating installations; Valves (solenoid controls for automatically operating -) [parts of heating installations]; Thermostatic valves [parts of heating installations]; Control devices [thermostatic valves] for heating installations; Bathroom installations for water supply purposes
37
Maintenance of water purifying apparatus; Repair of water purifying apparatus; Repair or maintenance of water purifying apparatus; Repair or maintenance of water purifying apparatus for industrial purposes; Providing information relating to the repair or maintenance of water purifying apparatus; Repair or maintenance of freezing machines and apparatus; Installation of central heating apparatus; Maintenance of electronic or air conditioning systems; Installation and repair of air-conditioning apparatus; Routine servicing of air conditioning apparatus; Providing information relating to the repair or maintenance of air conditioning apparatus; Retrofitting of heating, ventilating and air conditioning installations in buildings; Installation of air conditioning apparatus for use in clean rooms; Maintenance and repair of heating; Heating equipment installation and repair; Boiler cleaning and repair; Boiler repair services; Providing information relating to the repair or maintenance of boilers; Installation of apparatus for heating; Maintenance and repair of heating apparatus; Installation of heating and cooling apparatus; Repair of sanitary installations; Installation of water pipes; Air conditioning contractor services; Repair of air filtering apparatus; Swimming-pool maintenance; Swimming pool cleaning services; Water supply installations maintenance; Construction of water supply installations; Cleaning of water supply plumbing; Renovating services relating to conduits for water supply