Heaters; heating and cooling systems and equipment; apparatus for heating, including ducted gas heaters; air conditioning and cooling systems, apparatus and equipment, including evaporative air conditioners; cooling apparatus, including evaporative coolers, refrigerative coolers and ducted cooling apparatus; ducts, fittings, parts and components for heating and cooling systems, apparatus, plants, units, equipment and installations; apparatus for refrigerating, drying, ventilating and water supply; hot water systems, apparatus and installations

Air ducts of non-metallic materials for buildings; ducted installations (non-electric, non-metallic); ducts, not of metal, for ventilating and air conditioning installations; non-metallic venting ducts; air diffusers, not of metal, (vents, grills) for ventilating, heating and air conditioning installations; building materials (non-metallic); non-metallic rigid pipes for building