11 Heating installations; cooking ovens for agricultural use; Air-conditioning, air cooling and ventilation apparatus and instruments, namely, air-conditioning apparatus, air cooling apparatus, turbine ventilators, ventilation hoods; Cooling evaporators, Furnaces, heat regenerators in the nature of heating installations , Heat recovery ventilators, Heat exchangers not being parts of machines, Fans for air conditioning apparatus, Ventilating, high-velocity portable exhaust fans for agricultural use, Ventilating, high-velocity fixed exhaust fans for agricultural use, Industrial dryers for heating and dehumidifying, Desiccating apparatus for agricultural use in the nature of desiccating units for producing dried fruits, Air sterilisers, Water sterilisers, Milk sterilizers, Gas burners; Coffee roasters