Conventional Burners In a Conventional burner, the fuel and air needed for combustion are mixed in the throat of the burner where ignition and oxidation reaction occurs. There is a single flame zone. In contrast, Low NOx burners typically use multiple flame zones. Callidus Conventional Burners Feature: • Short flame length • Mechanical simplicity • High stability • High turndown • Capability to burn a wide range of fuel gases and oils • Small burner size • Multiple firing orientations (vertical up or down, horizontal) Typical Conventional Burner Applications: • Where a short flame pattern is desirable • Where stringent NOx emissions are not required Callidus Conventional Burner Models: • CRG (Callidus Raw Gas) • CRGC (Callidus Raw Gas Combination)