Description
Lennox 10M86 Stainless Steel Heat Exchanger — 65,000 BTU, 3-Section
The Lennox 10M86 is a direct OEM replacement stainless steel heat exchanger engineered for dependable, long-lasting performance in compatible Lennox furnace systems. Constructed from durable stainless steel, this heat exchanger resists corrosion and thermal fatigue, making it an ideal choice for demanding residential and light-commercial heating applications.
Key Features
- OEM Lennox replacement heat exchanger — ensures precise fit and function
- Stainless steel construction for superior corrosion and heat resistance
- 65,000 BTU output capacity for efficient, high-performance heating
- 3-section design for optimized heat transfer and combustion efficiency
- Engineered to restore original furnace efficiency and safety
- Helps maintain proper flue gas containment and indoor air quality
Why Replace Your Heat Exchanger?
A cracked or deteriorated heat exchanger is a serious safety concern — it can allow combustion gases, including carbon monoxide, to enter the living space. Replacing a failed heat exchanger with a genuine Lennox OEM part like the 10M86 restores the integrity of the furnace, ensures safe operation, and extends equipment life.
Application
- Compatible with select Lennox furnace models (verify compatibility by cross-referencing your furnace model number)
- Suitable for residential and light-commercial heating systems
- Ideal for HVAC technicians performing furnace heat exchanger replacements
Specifications
- SKU: 10M86
- Brand: Lennox
- Material: Stainless Steel
- BTU Capacity: 65,000 BTU
- Sections: 3
- Type: OEM Replacement Heat Exchanger







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