Lennox 60G78 Heat Exchanger

The Lennox 60G78 Heat Exchanger is an OEM M-style tubular heat exchanger designed for critical thermal transfer in Lennox packaged rooftop units and high-capacity residential furnaces. This assembly, featuring a 6-tube design, is the primary component for segregating combustion byproducts from the airstream, ensuring safe and efficient heat transfer in GCS16, GCS24, and GHP16 series equipment. Constructed with corrosion-resistant stainless steel, the Lennox 60G78 is engineered to withstand the mechanical stresses of repeated thermal cycling and high-limit operating temperatures, preventing premature fatigue and potential cracked heat exchanger failures common in de-rated or aftermarket alternatives.

For field technicians, this replacement heat exchanger kit (often superseding LB-58087BA) provides a precise fit for 8.5 to 10-ton Lennox units, as well as compatible Allied and Armstrong commercial systems. Its multi-pass tubular construction maximizes the internal surface area, optimizing AFUE ratings and reducing operational fuel costs for the end-user. When performing a heat exchanger installation, ensure all manifold seals and combustion air inducer gaskets are replaced to maintain the integrity of the heat exchanger assembly. This heavy-duty component, weighing approximately 166 lbs, arrives as a complete assembly to streamline industrial HVAC repair timelines.

• OEM Compatibility: Exact replacement for Lennox 60G78, LB-58087BA, and R44326-001, ensuring zero-clearance issues during furnace repair.
• High-Grade Construction: Built with aluminized or stainless steel tubes to resist oxidation and flue gas condensate acidity.
• Optimized Airflow: The 6-tube M-style configuration reduces static pressure drop while maximizing thermal conductivity.
• Industrial Durability: Engineered for commercial HVAC systems, managing high BTU inputs without structural warping.

What models are compatible with the Lennox 60G78?
This heat exchanger is primarily used in Lennox GCS16-953, GCS24-953, and GHP16-953 packaged units, as well as specific Armstrong and Allied commercial rooftop units.

How do I identify a failing heat exchanger in a Lennox unit?
Technicians should inspect the 6-tube assembly for visible cracks, rust perforation, or soot buildup. Pressure switch tripping or rollout occurrences often indicate a compromised heat exchanger plenum.

Does this kit include the necessary gaskets?
While the 60G78 is the primary heat exchanger assembly, technicians should typically source a combustion air blower gasket and secondary seals separately if not bundled in the specific Lennox replacement kit.

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.