Fittings for water pipes made of metal, metal alloys or plastic; taps (faucets); pipeline systems for water; instantaneous and tankless water heaters; heating flanges; water boiling devices; hot water tanks; pressure water tanks; water heaters; hand dryers; towel dryers (heating); electric heating apparatus and installations; electric storage heaters for central or decentralized installation; electric heat accumulating apparatus and installations for central or local installation; central heating systems and components therefore, included in class 11; household electrical heaters; air-conditioning devices and systems; air humidification-and air de-humidification devices; ventilation devices and equipment (air conditioning); heat pumps; heat exchangers and heat recovering equipment; brine distributors (parts of heating systems); solar-powered cooling equipment, in particular adsorption and absorption heat pumps; absorption heat pumps; solar collectors for heating