OEM Lennox Noise Reduction Burner Assembly — 14C39

The genuine OEM Lennox 14C39 noise reduction burner assembly (factory part 612997-08) is a complete burner engineered to deliver clean combustion while minimizing operating noise in your Lennox furnace. The assembly integrates the burner, flame-retention features, and sound-dampening design that Lennox uses to reduce the rumble, whistle, and ignition pop associated with standard burners — keeping heating cycles quiet and comfortable.

Common symptoms indicating this burner needs replacement include loud rumbling or booming on ignition, persistent whistling during operation, rough or delayed lighting, sooting, and visible corrosion or warping of the burner body. A degraded burner not only raises noise levels but can compromise combustion efficiency and safety.

Choosing the OEM 14C39 ensures the exact fit, flame characteristics, and acoustic performance your Lennox system was designed around. Factory-matched burner assemblies maintain proper ignition, correct flame retention, and the noise-reduction benefits that generic replacements cannot reliably reproduce.