
Lennox 29K12 Flue Plug
The Lennox 29K12 Flue Plug is a critical OEM replacement part designed for a secure, airtight seal within 2-inch flue pipe systems. Engineered to handle the rigorous thermal demands of high-efficiency condensing furnaces, this 2-inch black plastic plug ensures proper combustion air management by preventing unwanted air leakage and potential backdrafting. Field-proven in residential and commercial applications, this component maintains total system integrity, effectively sealing unused ports on the primary or secondary collector boxes to optimize draft inducer performance.
As a veteran technician knows, selecting the correct exhaust vent plug is vital for meeting specific static pressure requirements in Lennox, Armstrong, and Ducane units. The 29K12 features a 2-5/16" outer diameter flange to provide a wide seating surface that compensates for vibrations during the heating cycle. Whether you are performing a seasonal tune-up or a full cabinet reconfiguration, utilizing genuine Lennox repair parts like this flue plug ensures your equipment remains compliant with manufacturer specifications and maintains peak operational efficiency throughout the winter months.
Key Benefits
- Compatible with a broad range of Lennox furnace series including G41UF, G43UF, G51MP, G61MP, and G71MPP.
- Constructed from heavy-duty, heat-resistant polymers to withstand continuous exposure to combustion byproducts.
- Precision-molded 2-inch diameter ensures a friction-fit seal that resists dislodging during high-fire operations.
- Direct OEM replacement part (29K1201) eliminates the risks associated with generic alternatives in critical venting paths.
Common Questions
- How do I confirm the 29K12 is the right fit for my inducer housing? This vent port plug is designed for 2-inch openings. Always verify your current model’s parts list or check the existing plug for the 29K12 stamping to ensure a proper seal.
- Is this plug suitable for high-temperature exhaust applications? Yes, the Lennox 29K12 is specifically rated for the flue and ventilation environments found in modern condensing gas furnaces.
- Can this be used on Allied Air or Ducane brands? Yes, as an OEM part for the Lennox family, it is cross-compatible with most Allied, Armstrong, and Ducane models using standard 2-inch flue configurations.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $5.62
-65%$5.62
$1.97Lennox 29K12 Flue Plug
The Lennox 29K12 Flue Plug is a critical OEM replacement part designed for a secure, airtight seal within 2-inch flue pipe systems. Engineered to handle the rigorous thermal demands of high-efficiency condensing furnaces, this 2-inch black plastic plug ensures proper combustion air management by preventing unwanted air leakage and potential backdrafting. Field-proven in residential and commercial applications, this component maintains total system integrity, effectively sealing unused ports on the primary or secondary collector boxes to optimize draft inducer performance.
As a veteran technician knows, selecting the correct exhaust vent plug is vital for meeting specific static pressure requirements in Lennox, Armstrong, and Ducane units. The 29K12 features a 2-5/16" outer diameter flange to provide a wide seating surface that compensates for vibrations during the heating cycle. Whether you are performing a seasonal tune-up or a full cabinet reconfiguration, utilizing genuine Lennox repair parts like this flue plug ensures your equipment remains compliant with manufacturer specifications and maintains peak operational efficiency throughout the winter months.
Key Benefits
- Compatible with a broad range of Lennox furnace series including G41UF, G43UF, G51MP, G61MP, and G71MPP.
- Constructed from heavy-duty, heat-resistant polymers to withstand continuous exposure to combustion byproducts.
- Precision-molded 2-inch diameter ensures a friction-fit seal that resists dislodging during high-fire operations.
- Direct OEM replacement part (29K1201) eliminates the risks associated with generic alternatives in critical venting paths.
Common Questions
- How do I confirm the 29K12 is the right fit for my inducer housing? This vent port plug is designed for 2-inch openings. Always verify your current model’s parts list or check the existing plug for the 29K12 stamping to ensure a proper seal.
- Is this plug suitable for high-temperature exhaust applications? Yes, the Lennox 29K12 is specifically rated for the flue and ventilation environments found in modern condensing gas furnaces.
- Can this be used on Allied Air or Ducane brands? Yes, as an OEM part for the Lennox family, it is cross-compatible with most Allied, Armstrong, and Ducane models using standard 2-inch flue configurations.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lennox 29K12 Flue Plug is a critical OEM replacement part designed for a secure, airtight seal within 2-inch flue pipe systems. Engineered to handle the rigorous thermal demands of high-efficiency condensing furnaces, this 2-inch black plastic plug ensures proper combustion air management by preventing unwanted air leakage and potential backdrafting. Field-proven in residential and commercial applications, this component maintains total system integrity, effectively sealing unused ports on the primary or secondary collector boxes to optimize draft inducer performance.
As a veteran technician knows, selecting the correct exhaust vent plug is vital for meeting specific static pressure requirements in Lennox, Armstrong, and Ducane units. The 29K12 features a 2-5/16" outer diameter flange to provide a wide seating surface that compensates for vibrations during the heating cycle. Whether you are performing a seasonal tune-up or a full cabinet reconfiguration, utilizing genuine Lennox repair parts like this flue plug ensures your equipment remains compliant with manufacturer specifications and maintains peak operational efficiency throughout the winter months.
Key Benefits
- Compatible with a broad range of Lennox furnace series including G41UF, G43UF, G51MP, G61MP, and G71MPP.
- Constructed from heavy-duty, heat-resistant polymers to withstand continuous exposure to combustion byproducts.
- Precision-molded 2-inch diameter ensures a friction-fit seal that resists dislodging during high-fire operations.
- Direct OEM replacement part (29K1201) eliminates the risks associated with generic alternatives in critical venting paths.
Common Questions
- How do I confirm the 29K12 is the right fit for my inducer housing? This vent port plug is designed for 2-inch openings. Always verify your current model’s parts list or check the existing plug for the 29K12 stamping to ensure a proper seal.
- Is this plug suitable for high-temperature exhaust applications? Yes, the Lennox 29K12 is specifically rated for the flue and ventilation environments found in modern condensing gas furnaces.
- Can this be used on Allied Air or Ducane brands? Yes, as an OEM part for the Lennox family, it is cross-compatible with most Allied, Armstrong, and Ducane models using standard 2-inch flue configurations.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












