Scientific, nautical, surveying, electric, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments, soldering irons; infrared ray generators; electric resistance elements; electric resistors; electric rheostats; electric transformers; electro-magnetic contactors; electric switches; electric thermal cut-outs; electric circuit breakers; electric resistor wire; electric resistor ribbon; heating cables; thermostats; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; calculating machines, data processing equipment and computers; devices, elements, installations and units, all the foregoing being control apparatus for cooling, drying and heating; measuring apparatus; electrical power regulating apparatus; sensors; timeswitches; cables; transformers; cable glands for use with electrical apparatus; monitors; recording equipment; thermometers; alarms and alarm systems; regulating apparatus; control, sensing, metering, monitoring and regulating apparatus and instruments; conductivity meters; flow meters; temperature controllers; electrical power and resistance controllers; temperature sensors; apparatus, instruments and cables for electricity; electrical and electronic components; electric cables and wires; electric control panels; electrical connections; industrial automation controls; industrial controls incorporating software; computer software; computer software for designing heat trace systems; computer software for use with industrial controls; load banks; parts, fittings and accessories for all the aforesaid goods.

Heating, steam generating, cooling, ventilating and compressed air installations and apparatus; apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; electric heaters; oven heaters; broiler heaters; air blast heaters; hot plates; range plates; range units stoves; cooking plates; urn heaters; electric melting pots; fluid superheaters principally for industrial purposes; fluid pre-heaters principally for industrial purposes; flatiron bases; electric heating elements; heat trace cables; electric trace heating systems and apparatus; heating, ventilating, and air conditioning and purification equipment (ambient); gas purifying installations; fuel purifying installations; immersion heaters; storage tank heaters; air heaters; duct heaters; radiant heaters; circulation heaters; cartridge heaters; insertion heaters; strip heaters; tubular heaters; ring heaters; disc heaters; band heaters; cable heaters; enclosure heaters; industrial heaters; electric boilers; steam producing installations; steam heating apparatus; steam boilers, other than parts of machines; thermal storage apparatus; thermal storage apparatus for energy generated from renewable sources; hot water apparatus; apparatus using saturated water and steam for flexible energy storage; steam injectors; heat exchangers; heat recovery installations and apparatus; industrial vaporisers; air handlers; parts, fittings and accessories for all the aforesaid goods.

Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; insulating tubing beads, blocks, bushings and bodies; flexible pipes, not of metal; tapes of epoxy impregnated fibreglass for insulating; connectors (non-metallic -) for pipes; flexible pipes, tubes, hoses and fittings therefor (including valves), and fittings for rigid pipes; parts, fittings and accessories for all the aforesaid goods.

Construction, repair, installation, commissioning and maintenance of engineering systems, heating systems, heat traces and electrical thermal systems; technical consultancy and technical advisory services relating to custom construction, repair, installation, commissioning and maintenance of engineering systems, heating systems, heat traces and electrical thermal systems; conversion of a fuel fired boiler to an electric boiler; technical consultation, information and advisory services in connection with all the aforesaid services.

Engineering services; design and modelling services; electrical thermal engineering; engineering and design of heaters, heating systems and heat traces; professional consultations and advice relating to engineering systems, heating systems, heat traces and electrical thermal systems; technological consultancy and research and consultation services relating to engineering systems, heating systems, heat traces and electrical thermal systems; custom design of engineering systems, heating systems, heat traces and electrical thermal systems; consultancy, provision of information and technical advisory services relating to custom design, validation and commissioning (testing and inspection) of engineering systems, heating systems, heat traces and electrical thermal systems; research and feasibility studies; inspection and audit of engineering systems, heating systems, heat traces and electrical thermal systems.