![Lennox 57W64 Secondary Heat Exchanger specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-57w64-specs.png?v=1794097257&width=1445)
The Lennox 57W64 secondary heat exchanger coil extracts additional heat from combustion gases after they leave the primary heat exchanger, improving the overall efficiency of compatible furnaces. It is a genuine Lennox replacement part.
Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 57W64 |
|---|---|
| Brand | Lennox |
| Type | Heat Exchanger |