9 Physical, electric and electronic measuring, control and regulating apparatus, and control valves for heating installations and heating regulators;pressure indicator valve blocks; time switches; thermostats; data carriers of all types; computer software; electric and electronic installations for the remote control of heating, ventilating, air-conditioning, water supply and steam generating installations;signalling apparatus;photovoltaic installations, mainly consisting of solar modules for generating electricity, impedance converters, control and regulating apparatus and parts therefor;regulating and safety accessories for photovoltaic installations.
11 Heating, ventilating, water supply and steam generating apparatus, in particular oil, gas and dual-fuel burners and non-electric parts therefor;heating boilers for oil, gas and duel-fuel burners and for solids;sanitary installations, in particular shower cubicles; air-conditioning installations; air heaters;atmospheric gas burners, and gas boilers operated by atmospheric gas burners;heating plants, mainly consisting of boilers, oil, gas or dual-fuel burners and/or solar collectors, heat accumulators, control and regulating apparatus, hydraulic distributors, circulation pumps and parts therefor;control valves for heating installations and heating regulators;regulating valves;ignition devices;water heaters, mainly consisting of heat exchangers and reservoirs;hot water tanks and water heaters; heat pumps; gas and oil condenser installations, mainly consisting of condenser apparatus, condensation collection vessels, heat exchangers, ceramic multi-port burners, circulation pumps and exhaust gas installations with plastic or metal pipes;solar collectors and heating installations consisting of solar collectors;regulating and safety accessories for solar collectors, oil and gas installations and pipes, water apparatus and pipes;electro-storage blocks;combined heat and power generating installations and parts therefor.
17 Insulating materials;ducts of plastic and composite materials for heating, ventilating, water supply and air-conditioning installations;junctions, not of metal, for pipes.
37 Installation, assembly, maintenance and repair of heating, ventilating, water-supply and air-conditioning installations.
42 Technical consultancy and architectural and construction drafting in the field of heating, ventilating and air conditioning technology, in particular for heating technology installations, solar collectors and heat pumps, and installation, assembly, maintenance and servicing thereof;construction drafting, technical project studies;research and development in the field of technology, in particular heating, ventilating and air conditioning technology; engineering work; surveying;rental, maintenance, updating of computer software, computer programming.