Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, namely lighting installations and lighting apparatus installations, heating installations, cooling installations for water, air cooling apparatus, steam generating installations, apparatus for the exchange of substances and heat for use in the production of steam, for use in cooking and for use in refrigeration, wet-cleaning drying machines, drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems, air-conditioning, air cooling and ventilation apparatus and instruments; apparatus for water distribution, namely mixer taps for water pipes, and taps being faucets; sanitary installations in the nature of sanitary facilities, namely, toilets, sinks, bathtubs and shower trays and pipes being parts of sanitary facilities, sanitary installations in the nature of steam rooms and saunas