This burner provides a high speed straightforward horizontal flat flame from a slit-shaped burner tile outlet. Because it has a large flame surface area, this burner has outstanding uniform heating capabilities. It is suitable for direct non-oxidizing heating bacause the free oxygen concentration is very low even when combustion is below the stoichiometric condition. Two models are available model C-CFB-II for ambient air and model H-CFB-II for air preheated up to 500℃ maximum.