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