Lennox 13J83 – Heat Exchanger Assembly, 150K BTU, Stainless Steel.

Lennox 13J83 Heat Exchanger Assembly is a genuine OEM stainless steel replacement designed to restore safe and efficient heating performance in compatible Lennox furnace models. Engineered for long-term durability, this 150,000 BTU heat exchanger maintains proper combustion, venting, and temperature transfer to keep your HVAC system running reliably through the heating season.

Manufactured with corrosion-resistant stainless steel, the Lennox 13J83 offers improved heat distribution and dependable operation in high-temperature environments. It is built to meet original factory specifications, ensuring proper fit, airflow, and thermal efficiency without the need for modifications.

This heat exchanger assembly is recommended when the existing exchanger shows signs of cracks, corrosion, or reduced heating output. Using authentic Lennox replacement components helps maintain system safety, indoor air quality, and manufacturer standards.

 

Key features

• Genuine Lennox OEM heat exchanger assembly
• 150,000 BTU heating capacity
• High-strength stainless steel construction for durability
• Designed for long-lasting corrosion resistance
• Ensures proper combustion and thermal efficiency
• Direct-fit replacement for compatible Lennox furnaces
• Maintains safe operation and consistent heating performance