11 Apparatus for heating, cooling, water heating and/or ventilation, namely, heating elements, heating installations, hot water heating installations, air-conditioning, air cooling and ventilation apparatus and instruments, heating, cooling, water supply and ventilation systems for residential buildings primarily comprising heat pumps, heating units for industrial purposes and for heating commercial buildings, cooling units for industrial purposes and for cooling commercial buildings, heating and cooling systems primarily comprising heat pumps for intelligent waste heat utilization being used for industrial and commercial buildings as well as for industrial and commercial purposes; apparatus for waste heat utilization, namely, heating installations, hot water heating installations; heat pumps; heat pumps for waste heat utilization; heat pumps for utilization of waste heat, air, water and/or geothermal energy; residential heat pumps; industrial heat pumps; commercial heat pumps; solar thermal collectors for heating; solar energy powered apparatus for heating, cooling, water heating and/or ventilation, namely, solar-powered heaters for domestic, commercial or industrial use, solar water heaters, solar-powered cooling units, solar-powered room ventilation units; regenerative heat generators; storage units for thermal energy, namely, storage heaters; heat accumulators; heat regenerators; heat exchangers not being parts of machines; heating installations and systems consisting of heating installations; heating radiators; fan heaters; installations for technology and process cooling, in particular for industrial, commercial or medical-technical applications, namely, cooling units for industrial purposes, cooling units for industrial process cooling and air-conditioning, industrial process chilling units, cooling units for cooling machines, machine tools and production lines, cooling units for cooling laser and high-tech applications, cooling units for cooling medical devices and medical diagnostic equipment, cooling units for cooling laboratories, cooling units for storerooms, refrigerators and cooling apparatus for medical storage purposes and none of the foregoing being parts of machines; cooling equipment, namely, evaporative air cooling units for residential purposes; refrigerating machines; cooling apparatus and installations, namely, air cooling units for industrial and commercial purposes, air cooling apparatus, cooling installations for water; cooling installations for liquids; water heaters; storage water heaters; ventilation installations, namely, room ventilation and air distribution units, ventilating fans for commercial and industrial use, ventilating exhaust fans, ventilation hoods, and ventilation systems consisting of room ventilation, air distribution and air purification units for buildings, in particular for residential buildings; residential ventilation apparatus, namely, ventilating fans for household use; air distribution apparatus, namely, air conditioners and installations consisting of air distribution apparatus, namely, air-conditioning installations; air-conditioning installations; air-conditioning apparatus; ventilating fans for commercial and industrial use; filtration instruments, namely, filters for water filtration, filters for air conditioning, air filters for room ventilation and for air distribution units in buildings; pipes being parts of sanitary installations; water supply installations, namely, faucets; gas burners, electric boilers and hot water heaters; food and beverage cooking, heating, cooling and treatment equipment, namely, thermoelectric cooler and heater for food and beverages; fireplaces; filters for industrial and household use, namely, water filters, air filters; industrial treatment installations, namely, industrial process chilling units, cooling units for cooling machines, machine tools and production lines, cooling units for cooling laser and high-tech applications, and none of the foregoing being parts of machines; industrial installations for the filtration of liquids being part of heating installations, cooling units, air-conditioning and ventilation installations; installations for the collection of gases being part of heating installations, cooling units, air-conditioning and ventilation installations; installations for the collection of liquids being part of heating installations, cooling units, air-conditioning and ventilation installations; industrial apparatus using air to assist in the drying of components in the electronics, semiconductor, circuit board, pharmaceutical, medical, food and beverage industries; refrigerating and freezing equipment, namely, electric refrigerators and freezers; regulating and safety accessories for water and gas installations, namely, pressure regulators for water installations, gas regulators, flashback arrestors and reverse flow check valves; structural parts and fittings for all the aforementioned goods