
Lennox 71W48 Orifice
The Lennox 71W48 Orifice is a precision-engineered .034 LP orifice designed for liquid propane conversion and flow regulation in specific Lennox heating units. As a vital component in the combustion string, this 0.034 injector ensures the correct air-to-fuel ratio required for efficient burner performance. Heavy-duty brass construction provides the necessary thermal resistance to withstand high-temperature environments without deforming or compromising the spray pattern. When replacing a burners orifice, verified sizing is critical to prevent incomplete combustion or over-firing of the heat exchanger. This replacement LP orifice is manufactured to strict OEM tolerances, ensuring a seamless fit into the manifold assembly. Technicians should verify the manifold pressure and inspect the burner tubes for obstructions during installation to ensure the Lennox burner part operates within factory specifications. This component is essential for any LP conversion kit maintenance or gas pressure adjustments on compatible Lennox residential equipment.
- Precision Machined: The .034 aperture provides exact metered flow for consistent liquid propane combustion.
- Durable Brass Material: Resists corrosion and maintains structural integrity under constant thermal cycling.
- OEM Compatibility: Designed specifically for Lennox HVAC systems to maintain equipment safety certifications.
- Optimized Efficiency: Proper sizing reduces carbon buildup and ensures peak BTU output for the heating system.
Common Installation Questions
What is the drill size for a .034 orifice?
A .034 orifice typically corresponds to a #66 drill bit size, although technicians should always use a calibrated orifice gauge for field verification before installation.
Can this orifice be used for Natural Gas applications?
No, the 71W48 is specifically sized for LP applications. Using a .034 orifice with natural gas will result in significantly reduced BTU output and poor flame quality due to the lower energy density of NG compared to propane.
How do I verify if the 71W48 fits my specific furnace model?
Always cross-reference the parts manual for your specific Lennox model number. This .034 diameter is standard for specific BTU-per-burner ratings on legacy and modern high-efficiency units.
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: $25.29
-65%$25.29
$8.85Lennox 71W48 Orifice
The Lennox 71W48 Orifice is a precision-engineered .034 LP orifice designed for liquid propane conversion and flow regulation in specific Lennox heating units. As a vital component in the combustion string, this 0.034 injector ensures the correct air-to-fuel ratio required for efficient burner performance. Heavy-duty brass construction provides the necessary thermal resistance to withstand high-temperature environments without deforming or compromising the spray pattern. When replacing a burners orifice, verified sizing is critical to prevent incomplete combustion or over-firing of the heat exchanger. This replacement LP orifice is manufactured to strict OEM tolerances, ensuring a seamless fit into the manifold assembly. Technicians should verify the manifold pressure and inspect the burner tubes for obstructions during installation to ensure the Lennox burner part operates within factory specifications. This component is essential for any LP conversion kit maintenance or gas pressure adjustments on compatible Lennox residential equipment.
- Precision Machined: The .034 aperture provides exact metered flow for consistent liquid propane combustion.
- Durable Brass Material: Resists corrosion and maintains structural integrity under constant thermal cycling.
- OEM Compatibility: Designed specifically for Lennox HVAC systems to maintain equipment safety certifications.
- Optimized Efficiency: Proper sizing reduces carbon buildup and ensures peak BTU output for the heating system.
Common Installation Questions
What is the drill size for a .034 orifice?
A .034 orifice typically corresponds to a #66 drill bit size, although technicians should always use a calibrated orifice gauge for field verification before installation.
Can this orifice be used for Natural Gas applications?
No, the 71W48 is specifically sized for LP applications. Using a .034 orifice with natural gas will result in significantly reduced BTU output and poor flame quality due to the lower energy density of NG compared to propane.
How do I verify if the 71W48 fits my specific furnace model?
Always cross-reference the parts manual for your specific Lennox model number. This .034 diameter is standard for specific BTU-per-burner ratings on legacy and modern high-efficiency units.
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.
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Description
The Lennox 71W48 Orifice is a precision-engineered .034 LP orifice designed for liquid propane conversion and flow regulation in specific Lennox heating units. As a vital component in the combustion string, this 0.034 injector ensures the correct air-to-fuel ratio required for efficient burner performance. Heavy-duty brass construction provides the necessary thermal resistance to withstand high-temperature environments without deforming or compromising the spray pattern. When replacing a burners orifice, verified sizing is critical to prevent incomplete combustion or over-firing of the heat exchanger. This replacement LP orifice is manufactured to strict OEM tolerances, ensuring a seamless fit into the manifold assembly. Technicians should verify the manifold pressure and inspect the burner tubes for obstructions during installation to ensure the Lennox burner part operates within factory specifications. This component is essential for any LP conversion kit maintenance or gas pressure adjustments on compatible Lennox residential equipment.
- Precision Machined: The .034 aperture provides exact metered flow for consistent liquid propane combustion.
- Durable Brass Material: Resists corrosion and maintains structural integrity under constant thermal cycling.
- OEM Compatibility: Designed specifically for Lennox HVAC systems to maintain equipment safety certifications.
- Optimized Efficiency: Proper sizing reduces carbon buildup and ensures peak BTU output for the heating system.
Common Installation Questions
What is the drill size for a .034 orifice?
A .034 orifice typically corresponds to a #66 drill bit size, although technicians should always use a calibrated orifice gauge for field verification before installation.
Can this orifice be used for Natural Gas applications?
No, the 71W48 is specifically sized for LP applications. Using a .034 orifice with natural gas will result in significantly reduced BTU output and poor flame quality due to the lower energy density of NG compared to propane.
How do I verify if the 71W48 fits my specific furnace model?
Always cross-reference the parts manual for your specific Lennox model number. This .034 diameter is standard for specific BTU-per-burner ratings on legacy and modern high-efficiency units.
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.












