
Reznor 123665 Burner
The Reznor 123665 Burner is a precision-engineered replacement component designed for compatibility with specific Reznor gas-fired unit heaters and duct furnaces. As a critical part of the combustion assembly, this natural gas burner ensures optimal fuel-to-air ratios and consistent flame stability across high-output heating cycles. Built to OEM specifications, the 123665 provides a direct-fit solution for maintaining thermal efficiency in commercial HVAC systems. Its durable construction handles the thermal stress associated with industrial heating environments, preventing common issues like irregular flame patterns or delayed ignition. For technicians performing Reznor heater maintenance, this burner assembly facilitates a reliable combustion system repair, ensuring the unit operates within its original performance parameters. Correct installation of this OEM Reznor part is essential for maximizing heat exchanger longevity and reducing carbon buildup within the firebox, maintaining peak unit performance during peak demand periods.
Key Benefits
- Precision Porting: Engineered for uniform gas distribution and stable combustion across the entire burner surface.
- Direct OEM Compatibility: Designed for an exact fit in Reznor units, reducing field modification time and ensuring proper alignment with the gas manifold.
- Enhanced Thermal Durability: Constructed from high-grade materials to withstand cyclic heating and cooling without warping or structural degradation.
- Optimized Efficiency: Supports proper BTU output levels, helping to maintain the system's AFUE ratings and reduce operational overhead.
Common Questions
Is the Reznor 123665 compatible with Propane (LP) units?
This specific burner is typically configured for natural gas applications. Converting to propane requires the correct orifice size and regulator adjustments as per the manufacturer's conversion kit instructions.
Why is my Reznor heater experiencing uneven flame distribution?
Uneven distribution is often caused by clogged burner ports or a misaligned manifold. Replacing a compromised burner with a new 123665 assembly restores the intended flame geometry.
How do I verify if this burner fits my specific Reznor model?
Compatibility is determined by the model series and the serial number. Cross-reference the 123665 part number with your unit's technical data plate or parts manual to ensure a correct match.
This item is not eligible for free shipping.
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: $1,644.31
-65%$1,644.31
$575.51Reznor 123665 Burner
The Reznor 123665 Burner is a precision-engineered replacement component designed for compatibility with specific Reznor gas-fired unit heaters and duct furnaces. As a critical part of the combustion assembly, this natural gas burner ensures optimal fuel-to-air ratios and consistent flame stability across high-output heating cycles. Built to OEM specifications, the 123665 provides a direct-fit solution for maintaining thermal efficiency in commercial HVAC systems. Its durable construction handles the thermal stress associated with industrial heating environments, preventing common issues like irregular flame patterns or delayed ignition. For technicians performing Reznor heater maintenance, this burner assembly facilitates a reliable combustion system repair, ensuring the unit operates within its original performance parameters. Correct installation of this OEM Reznor part is essential for maximizing heat exchanger longevity and reducing carbon buildup within the firebox, maintaining peak unit performance during peak demand periods.
Key Benefits
- Precision Porting: Engineered for uniform gas distribution and stable combustion across the entire burner surface.
- Direct OEM Compatibility: Designed for an exact fit in Reznor units, reducing field modification time and ensuring proper alignment with the gas manifold.
- Enhanced Thermal Durability: Constructed from high-grade materials to withstand cyclic heating and cooling without warping or structural degradation.
- Optimized Efficiency: Supports proper BTU output levels, helping to maintain the system's AFUE ratings and reduce operational overhead.
Common Questions
Is the Reznor 123665 compatible with Propane (LP) units?
This specific burner is typically configured for natural gas applications. Converting to propane requires the correct orifice size and regulator adjustments as per the manufacturer's conversion kit instructions.
Why is my Reznor heater experiencing uneven flame distribution?
Uneven distribution is often caused by clogged burner ports or a misaligned manifold. Replacing a compromised burner with a new 123665 assembly restores the intended flame geometry.
How do I verify if this burner fits my specific Reznor model?
Compatibility is determined by the model series and the serial number. Cross-reference the 123665 part number with your unit's technical data plate or parts manual to ensure a correct match.
This item is not eligible for free shipping.
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
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Description
The Reznor 123665 Burner is a precision-engineered replacement component designed for compatibility with specific Reznor gas-fired unit heaters and duct furnaces. As a critical part of the combustion assembly, this natural gas burner ensures optimal fuel-to-air ratios and consistent flame stability across high-output heating cycles. Built to OEM specifications, the 123665 provides a direct-fit solution for maintaining thermal efficiency in commercial HVAC systems. Its durable construction handles the thermal stress associated with industrial heating environments, preventing common issues like irregular flame patterns or delayed ignition. For technicians performing Reznor heater maintenance, this burner assembly facilitates a reliable combustion system repair, ensuring the unit operates within its original performance parameters. Correct installation of this OEM Reznor part is essential for maximizing heat exchanger longevity and reducing carbon buildup within the firebox, maintaining peak unit performance during peak demand periods.
Key Benefits
- Precision Porting: Engineered for uniform gas distribution and stable combustion across the entire burner surface.
- Direct OEM Compatibility: Designed for an exact fit in Reznor units, reducing field modification time and ensuring proper alignment with the gas manifold.
- Enhanced Thermal Durability: Constructed from high-grade materials to withstand cyclic heating and cooling without warping or structural degradation.
- Optimized Efficiency: Supports proper BTU output levels, helping to maintain the system's AFUE ratings and reduce operational overhead.
Common Questions
Is the Reznor 123665 compatible with Propane (LP) units?
This specific burner is typically configured for natural gas applications. Converting to propane requires the correct orifice size and regulator adjustments as per the manufacturer's conversion kit instructions.
Why is my Reznor heater experiencing uneven flame distribution?
Uneven distribution is often caused by clogged burner ports or a misaligned manifold. Replacing a compromised burner with a new 123665 assembly restores the intended flame geometry.
How do I verify if this burner fits my specific Reznor model?
Compatibility is determined by the model series and the serial number. Cross-reference the 123665 part number with your unit's technical data plate or parts manual to ensure a correct match.
This item is not eligible for free shipping.
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.












