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Apparatus and installations for heating, air-conditioning, ventilation and steam production installations, namely heating installations; boiler pipes in the nature heating installations tubes; extractors for ventilation apparatus; ventilation grates and inlets; draft regulators [heating]; chimney flues; flues for heating boilers; chimney flues not of metal. Flexible pipes, not of metal; non metallic pipe fittings for chimneys and ventilation and air conditioning installations; insulating materials and insulating jackets for non metallic chimneys and ventilation and air conditioning ducts; heat-insulating materials and items; non- metallic pipe seals; waterproof packings; non metallic pipe sleeves for chimneys and ventilation and air conditioning installations. Non metallic chimney shafts; non metallic chimney flues; ducts not of metal for ventilating and air-conditioning installations; non metallic ducts for central heating installations; non metallic chimney flues; chimney cowls and pots not of metal; reinforcements for non metallic chimneys and ducts for ventilation and air conditioning; non metallic ventilation grids; non-metallic pipes for industrial smoke removal apparatus. business management, business administration, office work, purchase orders, namely administrative processing services for purchase orders; commercial management of franchises; outsourcing services [business assistance]; commercial management of companies, outsourced administrative management of companies, all these services concerning the field of tubing, stove-building, ventilation and air-conditioning.