6 Ducts of metal for heating, ventilating, air conditioning and sanitary installations, and parts therefor;clips of metal;pipes and junctions for pipes of metal, faucets, valves of metal for water pipes.
7 Pumps and parts therefor, in particular circulating pumps;pump assemblies mainly consisting of pumps, mixers, distributors and manometers for transporting water in heating and hot water systems;ball valves;equalising vessels;fittings; valves; actuators;nozzles;heat exchangers.
9 Physical, electric and electronic measuring, control and regulating apparatus, and control valves for heating installations and heating regulators;pressure indicator blocks for valves;regulating valves; time switches; thermostats; heating plants, mainly consisting of boilers, oil, gas or dual-fuel burners, heat accumulators, control and regulating apparatus, hydraulic distributors, circulation pumps and parts therefor; 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;water heaters, mainly consisting of heat exchangers and reservoirs.
11 Heating, ventilating, water supply and steam generating apparatus, in particular oil, gas and dual-fuel burners, solar collectors and non-electric parts therefor;heating boilers for oil, gas and duel-fuel burners and for solid fuels;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, ignition devices;hot water tanks and water heaters;heating and circulation pumps;gas and oil condenser installations, mainly consisting of condenser apparatus, drip pots, heat exchangers, ceramic multiport burners, circulation pumps and exhaust gas installations with plastic or metal pipes;solar collectors and heating installations consisting of solar collectors;photovoltaic installations, mainly consisting of solar modules for generating electricity, impedance converters, control and regulating apparatus and parts therefor;regulating and safety accessories for solar collectors, photovoltaic, oil and gas installations and pipes, water apparatus and pipes;electro-storage blocks;combined heat and power generating installations and parts therefor.
17 Ducts of plastic and composite materials for heating, ventilating, water supply and air-conditioning installations.
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;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.