Description
The Lennox 12K49 is an OEM replacement 5 tube heat exchanger engineered to restore efficient and safe heating performance in compatible Lennox furnace systems. Designed as a direct factory replacement, this heat exchanger ensures proper combustion gas containment and optimal heat transfer to the air stream — two critical functions that protect both system efficiency and indoor air quality.
Key Features
- OEM Lennox replacement heat exchanger for precise fit and function
- 5-tube design for effective heat transfer across the furnace air stream
- Engineered to maintain proper separation of combustion gases from conditioned air
- Restores original furnace heating efficiency and performance
- Built to Lennox quality standards for long-lasting durability
Application
This heat exchanger is intended for use in compatible Lennox furnace models. Always verify compatibility with your specific furnace model and serial number before installation. Replacement of a heat exchanger should be performed by a qualified HVAC technician in accordance with all applicable codes and manufacturer guidelines.
Why Replace Your Heat Exchanger?
A cracked or failed heat exchanger can allow carbon monoxide and other combustion byproducts to enter the living space, posing serious health and safety risks. Replacing a damaged heat exchanger with a genuine Lennox OEM part like the 12K49 ensures your system operates safely and at peak efficiency.
