11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
apparatus for heating, air conditioning and water supply, sanitary installations, water heaters, heaters for baths, boilers, radiators, convectors, valves, hot water production apparatus, central heating, gas-fired installations for hot water production and central heating, boilers, heat generators, heat exchangers, heat pumps, air conditioners and air conditioning apparatus, solar collectors (heating), solar-powered heating installations and apparatus