9
Physical, electric and electronic measuring, control and regulating apparatus; time switches; thermostats; data carriers of all types; computer software; electric and electronic installations and apparatus for the remote control of heating, ventilating, air conditioning, water supply and steam generating installations and solar collectors and photovoltaic 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; electro-storage blocks
11
Heating, ventilating, water supply and steam generating apparatus, in particular oil, gas and dual-fuel burners, and non-electric parts therefor; air-conditioning installations; 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; lighters; hot water tanks and water heaters; heating and circulation pumps; solar collectors and heating installations consisting of solar collectors, and parts therefor; regulating and safety accessories for solar collectors, oil and gas installations and pipes, water apparatus and pipes; combined heat and power generating installations, and parts therefor; water heaters, mainly consisting of heat exchangers and reservoirs; control valves, in particular for heating installations and heating regulators; regulating valves
37
Installation, assembly, maintenance and repair of heating, ventilating, water supply and air-conditioning installations, and solar collectors and photovoltaic installations; providing information with regard to the aforesaid services
38
Provision of portals on the Internet; operating chatlines and forums
42
Rental, maintenance, updating of computer software, computer programming; providing platforms on the Internet [computer programming]; providing technical information, in particular with regard to heating, ventilating, water supply and steam generating apparatus and installations, and the operation thereof