Description
The Lennox 12K41 is an OEM replacement 3 Tube Heat Exchanger engineered to restore peak heating performance in compatible Lennox furnace systems. Designed to meet the original manufacturer’s specifications, this heat exchanger ensures efficient combustion gas containment and optimal heat transfer to the airstream — keeping your system operating safely and effectively.
Key Features
- OEM Lennox replacement heat exchanger
- 3-tube design for reliable thermal transfer
- Engineered to match original Lennox furnace specifications
- Supports safe separation of combustion gases from conditioned air
- Helps restore heating efficiency in aging or damaged furnace systems
- Durable construction for long service life
Application
The Lennox 12K41 is intended as a direct OEM replacement for compatible Lennox furnace models requiring a 3-tube heat exchanger assembly. Always verify compatibility with your specific furnace model before installation. Professional installation by a licensed HVAC technician is strongly recommended.
Product Details
- Brand: Lennox
- Part Number: 12K41
- Type: 3 Tube Heat Exchanger
- Application: Lennox Furnace Systems







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