11 Apparatus and installations for heating and air conditioning and ventilation apparatus and instruments; water heaters; electrostatic air filters for air conditioning and for domestic use; refrigerating machines and installations; electric heaters for commercial use; immersion heaters; portable electric heaters; blast chillers for commercial food preparation and storage; refrigeration equipment, namely, food and beverage chilling units; installations for conditioning air; air handlers; humidifiers; dehumidifiers; energy and heat recovery ventilators; ventilating exhaust fans, all for cooling, heating and ventilating domestic commercial and industrial buildings and for use in industrial processes; diffusers for heating and air conditioning installations; air cleaning units; barometric condensers for condensing vapors by contact with liquids; cooling evaporators; external ballast and bilge water filtering and absorbing device for use in a local containment area for removing oil and other contaminants from the effluent; gas condensers, other than parts of machines; refrigerator condensers; coils as parts of distilling, heating or cooling installations; fans for air conditioning apparatus; electric fans; hot air blowers; furnaces; air conditioners; heat pumps; heat exchangers, not parts of machines, coils as parts of distilling installations; air purifying apparatus and machines; water filtration and purification units and replacement cartridges and filters thereof; water purification installations and structural parts for all of the aforesaid; boilers for heating installations, not for machines; burners, namely, combustion burners, other than perfume burners; fluid, air and water heaters and chillers being ail-cooled chillers and water-cooled chillers for all domestic, commercial and industrial use; air inductor apparatus being air conditioning units for air conditioning units consisting of filters, diffusers, blenders and convectors; ventilation being air-conditioning installations for terminals; HVAC unit variable air volume apparatus, namely, controllers, safety dampers, fans, motorized fluid mixing valves, mixing valves actuators; refrigerant condensers; evaporators being cooling evaporators for HVAC; fan coil apparatus being coils as parts of distilling, heating or cooling installations; fans and blowers, namely, fans for HVAC units; air conditioners, and heat exchangers for use in heat transfer for industrial and commercial uses; evaporating apparatus, namely, cooling evaporators and evaporators for HVAC; gas, oil and synthetic fuel burners for industrial and commercial use; interior environment climate control system consisting of air conditioning, heating, ventilation and drying control devices being humidifiers, with digital thermostats all sold as a unit; mechanical, pneumatics, electrical and electronic controllers for heating, cooling and ventilating equipment; electrostatic air filters