The Hayward Heat Exchanger Assembly (FDXLHXA1250) is the OEM replacement heat exchanger for the Universal H-Series gas heater, model H250FD.
IMPORTANT: PROFESSIONAL SERVICE REQUIRED
Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.
The heat exchanger assembly is the core thermal transfer component of the H250FD heater, circulating pool water through the exchanger where combustion heat is transferred to the water before it returns to the pool. This cupro nickel assembly is engineered for resistance to salt water and chemical corrosion, and is designed to manage water flow through the exchanger to maximise heat transfer efficiency.
Specifications
| Hayward Part Number |
FDXLHXA1250 |
| Compatible Heater Model |
H250FD |
| Equipment Line |
Hayward Universal H-Series |
| UPC |
610377073738 |
Poolaroo Pro Tip
Before installing a replacement heat exchanger, inspect the header and manifold connections for scale buildup or corrosion — these are common contributors to heat exchanger failure and should be addressed at the same service visit. Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician.
