{"product_id":"hayward-fdxlhxa1250-heat-exchanger-replacement-for-h250fd-oem-low-nox-2-x-2-cpvc-unions","title":"Hayward FDXLHXA1250 Heat Exchanger Replacement for H250FD — OEM Low-NOx, 2\" x 2½\" CPVC Unions","description":"\u003cp\u003e\u003cstrong\u003eHayward FDXLHXA1250 is the factory-fit heat exchanger assembly engineered to replace the original core in the Hayward Universal H-Series Low NOx pool heater model H250FD.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis direct-replacement heat exchanger restores the thermal core of your Hayward H250FD pool heater without the uncertainty of aftermarket mismatches. Built to the same dimensional and connection specifications as the original part, it keeps your heater operating with the same low-NOx emission profile and plumbing layout. The unit ships at about 48.5 pounds and uses 2\" x 2 1\/2\" CPVC union connections for a straightforward swap into existing plumbing.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this heat exchanger fit my H250FD heater?\u003c\/h3\u003e\n\u003cp\u003eThe FDXLHXA1250 is produced to match the Hayward Universal H-Series Low NOx H250FD physical and plumbing specifications so you can replace the core without modifying the heater housing. It aligns with OEM unions and mounting points for a direct install.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpecifically for Hayward Universal H-Series Low NOx model H250FD\u003c\/li\u003e\n  \u003cli\u003e2\" x 2 1\/2\" CPVC union plumbing connections\u003c\/li\u003e\n  \u003cli\u003eDesigned to match original mounting and flow orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat do the low-NOx features mean for my pool equipment?\u003c\/h3\u003e\n\u003cp\u003eThis replacement retains the low-NOx design intent of the original H250FD heater, helping the system meet regional air-quality standards where applicable. The part itself is built so the heater continues to operate within those emissions expectations when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeets Clean Air Quality Standards as originally specified\u003c\/li\u003e\n  \u003cli\u003ePreserves the heater’s low-emissions performance\u003c\/li\u003e\n  \u003cli\u003eAllows compliance with local NOx regulations when used in appropriate systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and service life handling?\u003c\/h3\u003e\n\u003cp\u003eBecause the assembly is a like-for-like replacement, most professional technicians can complete the swap without altering plumbing or controls. The 2\" x 2 1\/2\" CPVC unions simplify disconnection and reconnection of water lines; check seals and gaskets during installation to ensure a leak-free fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWeighs approximately 48.5 pounds — plan for two-person handling\u003c\/li\u003e\n  \u003cli\u003eConnects via CPVC unions for easier maintenance access\u003c\/li\u003e\n  \u003cli\u003eInspect unions and gaskets and follow Hayward torque\/installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this replacement affect performance or warranty?\u003c\/h3\u003e\n\u003cp\u003eUsing a genuine Hayward replacement assembly helps maintain original performance characteristics because dimensions, materials, and connections are matched to the heater’s design. For warranty impacts, consult Hayward’s warranty policy or your service provider; installing OEM parts is commonly recommended to support warranty claims.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores original heat-exchange path and flow dynamics\u003c\/li\u003e\n  \u003cli\u003eHelps maintain design-level efficiency when properly installed\u003c\/li\u003e\n  \u003cli\u003eRefer to Hayward warranty terms for coverage specifics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool service technicians, homeowners, and facilities managers who operate a Hayward Universal H-Series Low NOx H250FD heater and need a reliable, OEM-compatible replacement core. This heat exchanger assembly is aimed at anyone seeking a straightforward swap to restore heater function while keeping the unit within its intended emissions and plumbing specifications. If you’re replacing the original heat exchanger because of corrosion, leaks, or end-of-life degradation, this OEM-style assembly provides the correct fit and connections to get your system back to work with minimal plumbing changes.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this heat exchanger compatible with any heater model?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — it is specifically made for the Hayward Universal H-Series Low NOx model H250FD only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What plumbing connections does the assembly use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It uses 2\" x 2 1\/2\" CPVC union plumbing connections for straightforward installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":56806010388820,"sku":"B005IVZLWS","price":1616.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/hayward-fdxlhxa1250-front-assembly.jpg?v=1786811512","url":"https:\/\/gardenluxe.co.uk\/products\/hayward-fdxlhxa1250-heat-exchanger-replacement-for-h250fd-oem-low-nox-2-x-2-cpvc-unions","provider":"Gardenluxe Uk","version":"1.0","type":"link"}