Lennox Tube Heat Exchanger

The Lennox Tube Heat Exchanger is a genuine Lennox replacement furnace heat exchanger. It is the component that moves heat from combustion into the air stream inside the furnace cabinet. It also keeps flue gases separate from the air circulated through the building. Each part number in this line is a tube-style heat exchanger, so you can choose the one that matches your furnace.

Key Features:

• Lennox-branded replacement heat exchanger for gas furnace heating sections
• Tube-style design that transfers combustion heat into the circulating air
• Keeps combustion gases separate from indoor air
• Suited to repairs after a failed combustion-gas leak test, visible cracking, or rust-through
• Several versions are available, and each has its own Lennox part number

Lennox furnace cabinets and burner assemblies differ by series and BTU size. Choose the version whose part number matches your original heat exchanger so it seats correctly against the burner box and vestibule panel. Replacing a failed heat exchanger helps restore safe, reliable furnace heating performance.