- F1 mode - Low Temperature Mode (primary fuel)
- F2 mode - High Temperature Mode (secondary fuel)
- HiTAC - High Temperature Air Combustion
- HRS - High-cycle Regenerative System
- HTB - High Temperature Burner
- HTB-WG - High Temperature Burner - Waste Gas
- LHV - Lower Heating Value
- SNCR - Selective Non-Catalytic Reduction)
- IED - Directive IED 2010/75/EU (Industrial Emission Directive) concerning industrial emissions in European Union.
- BAT - Best Available Techniques. The standard used for assessment of size of emission for the plants in European Union.