•Compartmentalized windbox and OFA added
•Secondary air header added
•Finger duct OFA’s
•Dampers and Air Flow flow measurement and OFA balancing
Larger OFA ports are used above and outboard of the burners to more efficiently reduce NOX and CO that tend to flow up the corners of a boiler
•To maximize NOX reduction when Over Fire Air is used, burner throat modifications are supplied for optimum performance
•Silicon carbide interlocking segments and 309 stainless steel retaining ring