The Lennox 45L14 (LB-94569) LP Burner Orifice is a precision-engineered brass orifice designed for accurate fuel metering in Lennox gas heating systems. Sized at .055 inches with 1/8-27 NPT threads, this OEM component ensures stable LP gas flow, proper combustion, and reliable furnace performance.

Long Description (SEO Optimized):
The Lennox 45L14 – LB-94569 LP Burner Orifice is a genuine Lennox OEM replacement part used in a wide range of Lennox gas furnaces and heating systems. Manufactured from durable brass, this orifice controls the LP gas flow rate with a calibrated .055-inch opening, ensuring clean and efficient combustion.

Featuring standard 1/8-27 NPT threads, the orifice installs securely into compatible Lennox burner assemblies, helping maintain optimal burner flame characteristics and consistent heating output. This component is commonly replaced during burner conversions, LP-to-natural gas adjustments, or when diagnosing fuel-delivery issues.

 

Key Features:

• Genuine Lennox OEM LP burner orifice
• .055-inch precision orifice for accurate fuel metering
• Durable brass construction for long service life
• 1/8-27 NPT threaded connection
• Designed for Lennox furnace burner assemblies
• Helps ensure safe, stable, and efficient LP combustion

 

Common Applications:

• Burner conversion kits
• LP system tuning
• Routine furnace maintenance
• Combustion performance adjustments