Lennox 99M83 Heat Exchanger
HomeStore

Lennox 99M83 Heat Exchanger

Lennox 99M83 Heat Exchanger

As a seasoned technician, you know that a compromised heat exchanger is a non-negotiable repair. The Lennox 99M83 Heat Exchanger is a genuine OEM replacement part specifically engineered for high-performance Lennox gas furnaces. This assembly is a tubular heat exchanger design, which is critical for maximizing thermal transfer from combustion gases to the circulating air stream while maintaining a robust pressure seal to prevent flue gas leakage. Also identified under part number R48077-005, this unit is built with high-grade, corrosion-resistant materials—often stainless steel or treated aluminum—to withstand the cyclical thermal expansion and contraction typical of heavy heating seasons.

When performing a furnace heat exchanger replacement, precision fitment is paramount to ensure proper airflow across the tubes and correct alignment with the burner box and inducer draft motor. The Lennox 99M83 is designed for a direct-drop installation, reducing labor hours and ensuring the system maintains its original AFUE efficiency rating. Replacing a cracked or scaled 99M83 furnace part restores the safety and operational integrity of the unit, preventing rollout and ensuring clean combustion cycles for your clients.

Key Benefits

  • Genuine Lennox OEM Part: Ensures direct compatibility with specific Lennox gas furnace models, eliminating the guesswork of universal aftermarket alternatives.
  • Advanced Tubular Design: Optimizes the surface area for maximum heat transfer efficiency and improved fuel economy.
  • Industrial-Grade Durability: Fabricated to resist soot buildup and thermal stress, extending the service life of the heating system.
  • OEM Precision Fit: Matches factory specifications for mounting brackets and header plates, ensuring a secure, leak-free installation.

Common Questions

Is the Lennox 99M83 compatible with my furnace model?
This Lennox HVAC component is a direct replacement for units utilizing the R48077-005 assembly. Always verify compatibility using your furnace’s model and serial number before beginning the teardown.

Does this assembly include the primary limit or gaskets?
This SKU typically focuses on the main tubular heat exchanger assembly. It is standard practice for technicians to inspect and replace the combustion air inducer gasket and primary limit switches during this level of service.

What are the signs that a 99M83 needs replacement?
Technicians should look for visible cracks in the tube welds, excessive rusting, or soot accumulation. A diagnostic indicating carbon monoxide presence or a tripping limit switch often points to a failing heat exchanger.

This item must ship via truck. Please contact us for freight quote.

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.

$283.98

Original: $811.37

-65%
Lennox 99M83 Heat Exchanger

$811.37

$283.98

Lennox 99M83 Heat Exchanger

As a seasoned technician, you know that a compromised heat exchanger is a non-negotiable repair. The Lennox 99M83 Heat Exchanger is a genuine OEM replacement part specifically engineered for high-performance Lennox gas furnaces. This assembly is a tubular heat exchanger design, which is critical for maximizing thermal transfer from combustion gases to the circulating air stream while maintaining a robust pressure seal to prevent flue gas leakage. Also identified under part number R48077-005, this unit is built with high-grade, corrosion-resistant materials—often stainless steel or treated aluminum—to withstand the cyclical thermal expansion and contraction typical of heavy heating seasons.

When performing a furnace heat exchanger replacement, precision fitment is paramount to ensure proper airflow across the tubes and correct alignment with the burner box and inducer draft motor. The Lennox 99M83 is designed for a direct-drop installation, reducing labor hours and ensuring the system maintains its original AFUE efficiency rating. Replacing a cracked or scaled 99M83 furnace part restores the safety and operational integrity of the unit, preventing rollout and ensuring clean combustion cycles for your clients.

Key Benefits

  • Genuine Lennox OEM Part: Ensures direct compatibility with specific Lennox gas furnace models, eliminating the guesswork of universal aftermarket alternatives.
  • Advanced Tubular Design: Optimizes the surface area for maximum heat transfer efficiency and improved fuel economy.
  • Industrial-Grade Durability: Fabricated to resist soot buildup and thermal stress, extending the service life of the heating system.
  • OEM Precision Fit: Matches factory specifications for mounting brackets and header plates, ensuring a secure, leak-free installation.

Common Questions

Is the Lennox 99M83 compatible with my furnace model?
This Lennox HVAC component is a direct replacement for units utilizing the R48077-005 assembly. Always verify compatibility using your furnace’s model and serial number before beginning the teardown.

Does this assembly include the primary limit or gaskets?
This SKU typically focuses on the main tubular heat exchanger assembly. It is standard practice for technicians to inspect and replace the combustion air inducer gasket and primary limit switches during this level of service.

What are the signs that a 99M83 needs replacement?
Technicians should look for visible cracks in the tube welds, excessive rusting, or soot accumulation. A diagnostic indicating carbon monoxide presence or a tripping limit switch often points to a failing heat exchanger.

This item must ship via truck. Please contact us for freight quote.

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

As a seasoned technician, you know that a compromised heat exchanger is a non-negotiable repair. The Lennox 99M83 Heat Exchanger is a genuine OEM replacement part specifically engineered for high-performance Lennox gas furnaces. This assembly is a tubular heat exchanger design, which is critical for maximizing thermal transfer from combustion gases to the circulating air stream while maintaining a robust pressure seal to prevent flue gas leakage. Also identified under part number R48077-005, this unit is built with high-grade, corrosion-resistant materials—often stainless steel or treated aluminum—to withstand the cyclical thermal expansion and contraction typical of heavy heating seasons.

When performing a furnace heat exchanger replacement, precision fitment is paramount to ensure proper airflow across the tubes and correct alignment with the burner box and inducer draft motor. The Lennox 99M83 is designed for a direct-drop installation, reducing labor hours and ensuring the system maintains its original AFUE efficiency rating. Replacing a cracked or scaled 99M83 furnace part restores the safety and operational integrity of the unit, preventing rollout and ensuring clean combustion cycles for your clients.

Key Benefits

  • Genuine Lennox OEM Part: Ensures direct compatibility with specific Lennox gas furnace models, eliminating the guesswork of universal aftermarket alternatives.
  • Advanced Tubular Design: Optimizes the surface area for maximum heat transfer efficiency and improved fuel economy.
  • Industrial-Grade Durability: Fabricated to resist soot buildup and thermal stress, extending the service life of the heating system.
  • OEM Precision Fit: Matches factory specifications for mounting brackets and header plates, ensuring a secure, leak-free installation.

Common Questions

Is the Lennox 99M83 compatible with my furnace model?
This Lennox HVAC component is a direct replacement for units utilizing the R48077-005 assembly. Always verify compatibility using your furnace’s model and serial number before beginning the teardown.

Does this assembly include the primary limit or gaskets?
This SKU typically focuses on the main tubular heat exchanger assembly. It is standard practice for technicians to inspect and replace the combustion air inducer gasket and primary limit switches during this level of service.

What are the signs that a 99M83 needs replacement?
Technicians should look for visible cracks in the tube welds, excessive rusting, or soot accumulation. A diagnostic indicating carbon monoxide presence or a tripping limit switch often points to a failing heat exchanger.

This item must ship via truck. Please contact us for freight quote.

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.

Lennox 99M83 Heat Exchanger | GSIstore