11 Heating equipment and heating systems based on the use of fuel cells, heating assemblies based on the use of fuel cells, stationary and mobile heat generators based on the use of fuel cells, components of equipment and assemblies for the stationary and mobile generation of heat included in this class, heating facilities, heat exchangers, equipment for all aforesaid goods (included in this class), in particular heat accumulators, heat exchangers, combustion furnaces and mechanical cooling and steam-generating equipment as parts of cogeneration assemblies and for the generation of electric energy as well as accessories for cogeneration assemblies and for the generation of electric energy (included in this class), heat exchangers, air conditioners, cooling units, ventilation units and heating units, in particular for vehicles and housing, units for heating water and air in vehicles, window defrosters operated electrically and by means of warm air, electric water heaters and engine pre-heating units, engine-independent air conditioners for vehicles, electric heating units, auxiliary heaters for vehicles, roof-mounted air conditioners, "HVAC" (heating / ventilation / air-conditioning) units for vehicles, namely heating, ventilation and air-conditioning units as units of equipment for vehicles and housing, lights, refrigerant collectors, namely containers as parts of refrigerating assemblies for collecting the refrigerating liquids, refrigerant dryers, flow heaters, reformers, namely mechanical equipment for the generation of hydrogen by means of electrolysis or be means of electro-chemical conversion of fossil or biogenous energy sources