1. Primary air | 2. Secondary air | 3. Fuel, IIme stone, make-up
4. Refractory lined lower furnace | 5. Fu mace walls-membrance walls
6. Internal heat transfer surfaces | 7. Seprator (Cyclone) | 8. Down corner I return 11/1
9. Integrated bubbling bed heat exchanger | 10. Cross-over duct
11. Backpass with heat exchangers | 12. ESP | 13. Stack