Lennox 57L28 Heat Exchanger Assembly is a genuine OEM replacement component designed to restore safe and efficient heat transfer in compatible Lennox gas furnaces. The heat exchanger is the core of the heating system, responsible for transferring combustion heat to the air stream while keeping exhaust gases safely isolated. Replacing a worn or damaged heat exchanger helps maintain proper furnace performance, energy efficiency, and safe operation.

Manufactured to Lennox factory specifications, the 57L28 heat exchanger assembly ensures precise fitment, correct airflow characteristics, and long-term durability when installed in approved Lennox furnace models. This assembly is intended for professional HVAC service and is commonly used in repair or refurbishment projects where maintaining OEM integrity is critical.

 

Product overview:

The Lennox 57L28 heat exchanger assembly is engineered for dependable heat transfer and structural integrity under high-temperature operating conditions. Using an OEM heat exchanger helps ensure the furnace operates as designed, reduces the risk of combustion gas leakage, and supports consistent heating performance throughout the season.

 

Specification:

Manufacturer: Lennox
Part number: 57L28
Product type: Heat exchanger assembly
Application: Gas furnace heat exchanger replacement
Compatibility: Designed for select Lennox furnace models
Condition: New, genuine OEM part