Heat pumps; Heat pumps for energy processing; Chiller units being parts of water cooling installations; Water chillers; Air handling apparatus; Air handling installations; Chilled purified water dispensers; Chilling apparatus; Chilling appliances; Chilling cabinets; Chilling chambers; Chilling containers; Chilling display units; Chilling machines; Multiple commodity chilled display apparatus; Multiple commodity chilling apparatus; Automatic temperature regulators (valves) for central heating radiators; Industrial high temperature heating apparatus; Instruments for temperature control in central heating installations (thermostatic valves); Mixer taps for the manual regulating of water temperature; Organic positive self-temperature control plane heaters; Temperature control apparatus (thermostatic valves) for central heating installations; Temperature control apparatus (valves) for central heating radiators; Temperature control valves (parts of central heating installations); Temperature control valves (parts of central heating radiators); Temperature control valves (parts of water supply installations); Temperature controllers (valves) for central heating radiators; Temperature controlling apparatus (valves) for central heating radiators; Temperature sensitive controls for automatically operating valves (parts of heating installations); Apparatus for the thermal treatment of foodstuffs; Solar thermal collectors (heating); Solar thermal collectors for heating; Thermal baths; Thermal controls (valves) for central heating radiators; Thermal fluid heaters; Thermal oxidising apparatus; Thermal incineration installations; Thermal protective aids (heated) other than for medical use; Thermal radiators for the heating of buildings; Thermal storage apparatus (solar energy) for heating; Thermal storage instruments (solar energy) for heating; Thermal treatment furnaces; Evacuated heat pipe solar collectors (heat exchangers); Heat exchange apparatus, other than parts of machines; Heat exchangers for central heating purposes; Heat exchangers for the removal of condensate; Heat exchangers for the removal of exhaust gases; Heat exchangers for the removal of flue gases; Heat exchangers for transferring heat between fluid streams; Heat exchangers, other than parts of machines; Heat exchanging apparatus (other than parts of machines); Shell heat exchangers; Ventilators for heat exchangers; Heat exchangers for the temperature control of drinks being dispensed; Chamber furnaces incorporating quenching tanks; Cooling tanks for furnaces; Electrically heated hot water tanks; Expansion tanks for central heating installations; Filter elements for the air vents of water supply tanks; Filter elements for the overflows of water supply tanks; Flushing tanks; Level controlling valves in tanks; Mechanisms for controlling fluid level in tanks (valves); Pressure tanks (water); Pressure water tanks; Pressurised water tanks; Refrigerated holding and display tanks for live fish and seafood; Regulators (valves) for level controlling in tanks; Regulating valves (level controlling in tanks); Septic tanks; Valves for controlling levels in tanks; Accumulation boilers; Boiler pipes (tubes) for heating installations; Boilers (other than parts of machines); Boilers being parts of central heating installations; Boilers for central heating installations; Boilers for hot water supply installations; Boilers for use in heating systems; Burners for boilers; Burners for the combustion of gas in boiler units; Burners for the combustion of oil in boiler units; Central heating boilers; Domestic boilers; Electric boilers; Electric central heating boiler systems; Feeding apparatus for heating boilers; Flues for heating boilers; Fluidized bed combustion boilers; Gas boilers; Gas boilers (other than parts of machines); Gas boilers for central heating; Gas boilers for water heating; Gas boilers for the heating of swimming pools; Gas fired boilers; Gas fired boilers for producing domestic hot water; Heating boilers; Hot water boilers; Hot water boilers for beverage making; Installations combining boilers and steam generators for heating; Installations combining boilers and steam generators for producing hot water; Meat boilers; Laundry room boilers; Oil fired boilers; Sight glasses for boilers; Steam boilers (other than parts of machines); Steam boilers for steam generating (other than parts of machines); Wash boilers; Water boilers