Lennox 71M80 Concentric Kit
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Lennox 71M80 Concentric Kit

Lennox 71M80 Concentric Kit

The Lennox 71M80 Concentric Kit is a professional-grade 1-1/2" Concentric Vent Kit designed to streamline high-efficiency furnace venting by combining intake and exhaust into a single roof or sidewall penetration. Engineered specifically for compatibility with Lennox HVAC systems, including elite models like the SLP99 and EL297 series, this OEM concentric termination kit utilizes a dual-pipe design to isolate flue gases from fresh combustion air. Constructed from high-durability PVC, the 71M80 includes a 3-inch rain cap, an internal 2-inch SDR-26 pipe, and a 1.5-inch exhaust accelerator to optimize terminal velocity and prevent recirculation. This kit eliminates the need for two separate exterior holes, maintaining structural integrity and providing a clean, low-profile finish for gas furnace installation. Whether you are performing a rooftop or sidewall application, the Lennox 71M80 ensures stable pressure switch operation by meeting exact manufacturer 1-1/2 inch venting specifications for residential and light commercial condensing furnaces.

Key Benefits:
  • Single-Hole Termination: Consolidates intake and exhaust pipes into one 4-inch opening, reducing installation time and potential leak points.
  • Advanced Combustion Control: Includes a 2" x 1-1/2" x 6" accelerator to ensure proper exhaust throw and prevent the "short-circuiting" of flue gases.
  • Durable Construction: UV-resistant PVC components and a 3-inch rain cap with a bird screen protect the system from debris and weather.
  • OEM Compatibility: Precision-engineered for Lennox 71M80 applications, ensuring compliance with local codes and unit pressure requirements.
Common Questions:

Can the 71M80 be used with other furnace brands?
While concentric kits follow standard PVC dimensions, this specific Lennox 71M80 Concentric Vent Kit is certified and tested for Lennox equipment. Using it with non-compatible brands may void technical listings or cause pressure switch trips.

What is the maximum wall thickness for a sidewall installation?
This kit is designed for standard residential framing. For thicker walls, ensure that the intake and exhaust dimensions maintain the minimum clearances specified in the Lennox installation manual to prevent ice buildup or recirculation.

How does the 1.5-inch accelerator impact performance?
The accelerator increases the velocity of the exhaust gas as it exits the 1-1/2" Concentric Kit, which is critical for moving combustion byproducts away from the intake air zone, especially in sub-zero temperatures.

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.

$73.44

Original: $209.82

-65%
Lennox 71M80 Concentric Kit

$209.82

$73.44

Lennox 71M80 Concentric Kit

The Lennox 71M80 Concentric Kit is a professional-grade 1-1/2" Concentric Vent Kit designed to streamline high-efficiency furnace venting by combining intake and exhaust into a single roof or sidewall penetration. Engineered specifically for compatibility with Lennox HVAC systems, including elite models like the SLP99 and EL297 series, this OEM concentric termination kit utilizes a dual-pipe design to isolate flue gases from fresh combustion air. Constructed from high-durability PVC, the 71M80 includes a 3-inch rain cap, an internal 2-inch SDR-26 pipe, and a 1.5-inch exhaust accelerator to optimize terminal velocity and prevent recirculation. This kit eliminates the need for two separate exterior holes, maintaining structural integrity and providing a clean, low-profile finish for gas furnace installation. Whether you are performing a rooftop or sidewall application, the Lennox 71M80 ensures stable pressure switch operation by meeting exact manufacturer 1-1/2 inch venting specifications for residential and light commercial condensing furnaces.

Key Benefits:
  • Single-Hole Termination: Consolidates intake and exhaust pipes into one 4-inch opening, reducing installation time and potential leak points.
  • Advanced Combustion Control: Includes a 2" x 1-1/2" x 6" accelerator to ensure proper exhaust throw and prevent the "short-circuiting" of flue gases.
  • Durable Construction: UV-resistant PVC components and a 3-inch rain cap with a bird screen protect the system from debris and weather.
  • OEM Compatibility: Precision-engineered for Lennox 71M80 applications, ensuring compliance with local codes and unit pressure requirements.
Common Questions:

Can the 71M80 be used with other furnace brands?
While concentric kits follow standard PVC dimensions, this specific Lennox 71M80 Concentric Vent Kit is certified and tested for Lennox equipment. Using it with non-compatible brands may void technical listings or cause pressure switch trips.

What is the maximum wall thickness for a sidewall installation?
This kit is designed for standard residential framing. For thicker walls, ensure that the intake and exhaust dimensions maintain the minimum clearances specified in the Lennox installation manual to prevent ice buildup or recirculation.

How does the 1.5-inch accelerator impact performance?
The accelerator increases the velocity of the exhaust gas as it exits the 1-1/2" Concentric Kit, which is critical for moving combustion byproducts away from the intake air zone, especially in sub-zero temperatures.

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

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Description

The Lennox 71M80 Concentric Kit is a professional-grade 1-1/2" Concentric Vent Kit designed to streamline high-efficiency furnace venting by combining intake and exhaust into a single roof or sidewall penetration. Engineered specifically for compatibility with Lennox HVAC systems, including elite models like the SLP99 and EL297 series, this OEM concentric termination kit utilizes a dual-pipe design to isolate flue gases from fresh combustion air. Constructed from high-durability PVC, the 71M80 includes a 3-inch rain cap, an internal 2-inch SDR-26 pipe, and a 1.5-inch exhaust accelerator to optimize terminal velocity and prevent recirculation. This kit eliminates the need for two separate exterior holes, maintaining structural integrity and providing a clean, low-profile finish for gas furnace installation. Whether you are performing a rooftop or sidewall application, the Lennox 71M80 ensures stable pressure switch operation by meeting exact manufacturer 1-1/2 inch venting specifications for residential and light commercial condensing furnaces.

Key Benefits:
  • Single-Hole Termination: Consolidates intake and exhaust pipes into one 4-inch opening, reducing installation time and potential leak points.
  • Advanced Combustion Control: Includes a 2" x 1-1/2" x 6" accelerator to ensure proper exhaust throw and prevent the "short-circuiting" of flue gases.
  • Durable Construction: UV-resistant PVC components and a 3-inch rain cap with a bird screen protect the system from debris and weather.
  • OEM Compatibility: Precision-engineered for Lennox 71M80 applications, ensuring compliance with local codes and unit pressure requirements.
Common Questions:

Can the 71M80 be used with other furnace brands?
While concentric kits follow standard PVC dimensions, this specific Lennox 71M80 Concentric Vent Kit is certified and tested for Lennox equipment. Using it with non-compatible brands may void technical listings or cause pressure switch trips.

What is the maximum wall thickness for a sidewall installation?
This kit is designed for standard residential framing. For thicker walls, ensure that the intake and exhaust dimensions maintain the minimum clearances specified in the Lennox installation manual to prevent ice buildup or recirculation.

How does the 1.5-inch accelerator impact performance?
The accelerator increases the velocity of the exhaust gas as it exits the 1-1/2" Concentric Kit, which is critical for moving combustion byproducts away from the intake air zone, especially in sub-zero temperatures.

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.

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