The OXY-THERM® LEFF is a low NOx burner which produces a thin, fan-shaped flame over product loads or baths. This burner is ideal for increased radiant heat transfer profiles. Utilizing patented deep staging technology, this low NOx burner produces extremely low levels of NOx while reducing fuel consumption. Like all the OXY-THERM® industrial burners, the LEFF is maintenance free and requires no cooling water or air. OXY-THERM® LEFF has been successfully used in flat glass furnaces, container glass furnaces, steel reheat furnaces, and a wide variety of other applications.