Lennox 56K26 Flue Box
The Lennox 56K26 Flue Box (also identified as LB-79560) is a critical OEM replacement part engineered for high-efficiency gas furnaces and boilers. Constructed from corrosion-resistant stainless steel, this collector box is designed to manage the transition of combustion byproducts, ensuring that exhaust gases are safely and effectively channeled from the heat exchanger into the venting system. For a veteran technician, the 56K26 represents a reliable solution for restoring combustion efficiency and preventing the leakage of hazardous gases into the building envelope. Weighing approximately 1.69 lbs, this robust component is built to withstand the high-temperature, acidic environment typical of condensing cycles. Proper installation of this Lennox furnace flue box is essential for maintaining the HVAC system performance and safety standards required in both residential and commercial applications. Utilizing genuine Lennox parts ensures precise fitment and eliminates the common seal failures associated with generic after-market alternatives.
Key Benefits- Corrosion Resistance: Fabricated from high-grade stainless steel to prevent degradation from acidic condensate.
- Optimal Airflow: Precision-engineered internal geometry facilitates efficient exhaust gas management.
- OEM Compatibility: Guaranteed fit for Lennox heating systems, reducing diagnostic time and installation labor.
- Safety Integrity: Ensures airtight collection of combustion byproducts to prevent CO leakage.
What are the symptoms of a failing Lennox 56K26 flue box?
Techs often observe moisture streaks, rust at the collector box junction, or pressure switch trip codes (causing the inducer to cycle without ignition) when the flue box is cracked or clogged.
Is the 56K26 a direct replacement for the Lennox LB-79560?
Yes, the 56K26 is the current service part number for the LB-79560 flue box used across multiple G51, G61, and similar efficiency Lennox furnace series.
Can I use sealant instead of replacing a cracked flue box?
No. Cracked flue boxes must be replaced to meet safety codes for condensing gas furnaces, as sealants may fail under thermal stress, compromising the exhaust path.
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: $153.79
-65%$153.79
$53.83Lennox 56K26 Flue Box
The Lennox 56K26 Flue Box (also identified as LB-79560) is a critical OEM replacement part engineered for high-efficiency gas furnaces and boilers. Constructed from corrosion-resistant stainless steel, this collector box is designed to manage the transition of combustion byproducts, ensuring that exhaust gases are safely and effectively channeled from the heat exchanger into the venting system. For a veteran technician, the 56K26 represents a reliable solution for restoring combustion efficiency and preventing the leakage of hazardous gases into the building envelope. Weighing approximately 1.69 lbs, this robust component is built to withstand the high-temperature, acidic environment typical of condensing cycles. Proper installation of this Lennox furnace flue box is essential for maintaining the HVAC system performance and safety standards required in both residential and commercial applications. Utilizing genuine Lennox parts ensures precise fitment and eliminates the common seal failures associated with generic after-market alternatives.
Key Benefits- Corrosion Resistance: Fabricated from high-grade stainless steel to prevent degradation from acidic condensate.
- Optimal Airflow: Precision-engineered internal geometry facilitates efficient exhaust gas management.
- OEM Compatibility: Guaranteed fit for Lennox heating systems, reducing diagnostic time and installation labor.
- Safety Integrity: Ensures airtight collection of combustion byproducts to prevent CO leakage.
What are the symptoms of a failing Lennox 56K26 flue box?
Techs often observe moisture streaks, rust at the collector box junction, or pressure switch trip codes (causing the inducer to cycle without ignition) when the flue box is cracked or clogged.
Is the 56K26 a direct replacement for the Lennox LB-79560?
Yes, the 56K26 is the current service part number for the LB-79560 flue box used across multiple G51, G61, and similar efficiency Lennox furnace series.
Can I use sealant instead of replacing a cracked flue box?
No. Cracked flue boxes must be replaced to meet safety codes for condensing gas furnaces, as sealants may fail under thermal stress, compromising the exhaust path.
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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Description
The Lennox 56K26 Flue Box (also identified as LB-79560) is a critical OEM replacement part engineered for high-efficiency gas furnaces and boilers. Constructed from corrosion-resistant stainless steel, this collector box is designed to manage the transition of combustion byproducts, ensuring that exhaust gases are safely and effectively channeled from the heat exchanger into the venting system. For a veteran technician, the 56K26 represents a reliable solution for restoring combustion efficiency and preventing the leakage of hazardous gases into the building envelope. Weighing approximately 1.69 lbs, this robust component is built to withstand the high-temperature, acidic environment typical of condensing cycles. Proper installation of this Lennox furnace flue box is essential for maintaining the HVAC system performance and safety standards required in both residential and commercial applications. Utilizing genuine Lennox parts ensures precise fitment and eliminates the common seal failures associated with generic after-market alternatives.
Key Benefits- Corrosion Resistance: Fabricated from high-grade stainless steel to prevent degradation from acidic condensate.
- Optimal Airflow: Precision-engineered internal geometry facilitates efficient exhaust gas management.
- OEM Compatibility: Guaranteed fit for Lennox heating systems, reducing diagnostic time and installation labor.
- Safety Integrity: Ensures airtight collection of combustion byproducts to prevent CO leakage.
What are the symptoms of a failing Lennox 56K26 flue box?
Techs often observe moisture streaks, rust at the collector box junction, or pressure switch trip codes (causing the inducer to cycle without ignition) when the flue box is cracked or clogged.
Is the 56K26 a direct replacement for the Lennox LB-79560?
Yes, the 56K26 is the current service part number for the LB-79560 flue box used across multiple G51, G61, and similar efficiency Lennox furnace series.
Can I use sealant instead of replacing a cracked flue box?
No. Cracked flue boxes must be replaced to meet safety codes for condensing gas furnaces, as sealants may fail under thermal stress, compromising the exhaust path.
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.
