![SAS GRO-ECO Technical - Start - Up Documentation Download Page 16](http://html1.mh-extra.com/html/sas/gro-eco/gro-eco_technical-start-up-documentation_1199848016.webp)
1. air intake dosage flap
2. ash box door
3. ash box
4. aeration canal lid of retort burner
5. retort burner
6. furnance door
7. boiler cover (body)
8. deflector
9. insulation
10. controller
11. smoke conduit cleaning hole
12. smoke conduit
13. smoke throttle
14. safety-valve
15. upper washout hole cover
16. hot water connector pipe
17. fuel storage bin
18. blowing fan
19. feeder drive mechanism
20. blowdown connection
21. lateral washout hole door
22. return water connector pipe
23. water jacket
BOILER CONSTRUCTION SCHEME OF SAS GRO-ECO TYPE (73 - 275 kW)