Lennox 14X42 Burner Assembly
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Lennox 14X42 Burner Assembly

Lennox 14X42 Burner Assembly

When you're dealing with burner issues in residential heating systems, the Lennox 14X42 Burner Assembly is the direct OEM replacement engineered for precise combustion and reliable thermal transfer. This assembly, often cross-referenced as Part ID 1497557 or 104910-03, is a critical component for maintaining the fuel-to-air ratio required for peak furnace efficiency. As a veteran tech knows, a degraded burner leads to poor ignition, sooting, and unnecessary stress on the heat exchanger. The Lennox 14X42 features rugged construction designed to withstand high-temperature cycling without warping, ensuring the flame remains properly aligned with the heat exchanger inlets. This HVAC replacement part is essential for restoring the heating system performance to factory specifications, particularly in G61, G61V, and SLP98 series units where consistent gas furnace combustion is paramount. Swapping out a clogged or corroded burner with this genuine Lennox burner assembly eliminates delayed ignition issues and helps prevent furnace manifold pressure imbalances that can trip safety limit switches during high-demand cycles.

Key Benefits for HVAC Professionals
  • Optimized Flame Pattern: Precision-engineered ports ensure a consistent flame, reducing the risk of flame rollout and localized overheating.
  • Direct OEM Compatibility: Eliminates the guesswork and manifold alignment issues common with universal "fit-all" secondary market components.
  • Enhanced Combustion Efficiency: Restores factory-spec fuel-to-air mixing to lower utility costs and prevent carbon buildup within the heat exchanger.
  • Durable Material Composition: High-grade metallic construction resists premature oxidation and thermal fatigue in heavy-use residential environments.
Common Questions & Technical Support

How do I know if my Lennox burner assembly needs replacement?
Inspect the burner for visible cracks, heavy corrosion, or enlarged ports. If you observe yellow flames or uneven 14X42 burner performance after cleaning, the internal venturi may be compromised, requiring a full assembly replacement.

Will this part solve furnace ignition delays?
Yes, if the delay is caused by poor gas distribution across the furnace burner ports. Ensure your ignitor and flame sensor are also clean and properly positioned relative to the new burner for seamless operation.

Is the 14X42 compatible with older Lennox G-series models?
The 14X42 is designed for specific Lennox furnace platforms. Always verify your full model and serial number against the 14X42 technical specifications to ensure the orifice and bracket alignments match your existing manifold setup.

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.

$12.67

Original: $36.19

-65%
Lennox 14X42 Burner Assembly

$36.19

$12.67

Lennox 14X42 Burner Assembly

When you're dealing with burner issues in residential heating systems, the Lennox 14X42 Burner Assembly is the direct OEM replacement engineered for precise combustion and reliable thermal transfer. This assembly, often cross-referenced as Part ID 1497557 or 104910-03, is a critical component for maintaining the fuel-to-air ratio required for peak furnace efficiency. As a veteran tech knows, a degraded burner leads to poor ignition, sooting, and unnecessary stress on the heat exchanger. The Lennox 14X42 features rugged construction designed to withstand high-temperature cycling without warping, ensuring the flame remains properly aligned with the heat exchanger inlets. This HVAC replacement part is essential for restoring the heating system performance to factory specifications, particularly in G61, G61V, and SLP98 series units where consistent gas furnace combustion is paramount. Swapping out a clogged or corroded burner with this genuine Lennox burner assembly eliminates delayed ignition issues and helps prevent furnace manifold pressure imbalances that can trip safety limit switches during high-demand cycles.

Key Benefits for HVAC Professionals
  • Optimized Flame Pattern: Precision-engineered ports ensure a consistent flame, reducing the risk of flame rollout and localized overheating.
  • Direct OEM Compatibility: Eliminates the guesswork and manifold alignment issues common with universal "fit-all" secondary market components.
  • Enhanced Combustion Efficiency: Restores factory-spec fuel-to-air mixing to lower utility costs and prevent carbon buildup within the heat exchanger.
  • Durable Material Composition: High-grade metallic construction resists premature oxidation and thermal fatigue in heavy-use residential environments.
Common Questions & Technical Support

How do I know if my Lennox burner assembly needs replacement?
Inspect the burner for visible cracks, heavy corrosion, or enlarged ports. If you observe yellow flames or uneven 14X42 burner performance after cleaning, the internal venturi may be compromised, requiring a full assembly replacement.

Will this part solve furnace ignition delays?
Yes, if the delay is caused by poor gas distribution across the furnace burner ports. Ensure your ignitor and flame sensor are also clean and properly positioned relative to the new burner for seamless operation.

Is the 14X42 compatible with older Lennox G-series models?
The 14X42 is designed for specific Lennox furnace platforms. Always verify your full model and serial number against the 14X42 technical specifications to ensure the orifice and bracket alignments match your existing manifold setup.

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

Shipping & Returns

Description

When you're dealing with burner issues in residential heating systems, the Lennox 14X42 Burner Assembly is the direct OEM replacement engineered for precise combustion and reliable thermal transfer. This assembly, often cross-referenced as Part ID 1497557 or 104910-03, is a critical component for maintaining the fuel-to-air ratio required for peak furnace efficiency. As a veteran tech knows, a degraded burner leads to poor ignition, sooting, and unnecessary stress on the heat exchanger. The Lennox 14X42 features rugged construction designed to withstand high-temperature cycling without warping, ensuring the flame remains properly aligned with the heat exchanger inlets. This HVAC replacement part is essential for restoring the heating system performance to factory specifications, particularly in G61, G61V, and SLP98 series units where consistent gas furnace combustion is paramount. Swapping out a clogged or corroded burner with this genuine Lennox burner assembly eliminates delayed ignition issues and helps prevent furnace manifold pressure imbalances that can trip safety limit switches during high-demand cycles.

Key Benefits for HVAC Professionals
  • Optimized Flame Pattern: Precision-engineered ports ensure a consistent flame, reducing the risk of flame rollout and localized overheating.
  • Direct OEM Compatibility: Eliminates the guesswork and manifold alignment issues common with universal "fit-all" secondary market components.
  • Enhanced Combustion Efficiency: Restores factory-spec fuel-to-air mixing to lower utility costs and prevent carbon buildup within the heat exchanger.
  • Durable Material Composition: High-grade metallic construction resists premature oxidation and thermal fatigue in heavy-use residential environments.
Common Questions & Technical Support

How do I know if my Lennox burner assembly needs replacement?
Inspect the burner for visible cracks, heavy corrosion, or enlarged ports. If you observe yellow flames or uneven 14X42 burner performance after cleaning, the internal venturi may be compromised, requiring a full assembly replacement.

Will this part solve furnace ignition delays?
Yes, if the delay is caused by poor gas distribution across the furnace burner ports. Ensure your ignitor and flame sensor are also clean and properly positioned relative to the new burner for seamless operation.

Is the 14X42 compatible with older Lennox G-series models?
The 14X42 is designed for specific Lennox furnace platforms. Always verify your full model and serial number against the 14X42 technical specifications to ensure the orifice and bracket alignments match your existing manifold setup.

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.