{"product_id":"oem-lennox-heat-exchanger-assembly-26l24","title":"OEM Lennox Heat Exchanger Assembly — 26L24","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e26L24\u003c\/strong\u003e heat exchanger assembly is the core combustion component of your Lennox gas furnace. It transfers heat from the burning fuel to the circulating air stream while keeping toxic combustion byproducts safely separated from the air your family breathes. Because this part is central to both efficiency and safety, using a factory-matched replacement is critical.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Cracks or corrosion in a heat exchanger often show up as a flickering or shifting burner flame, rust flakes or soot inside the cabinet, unusual rattling or popping on startup, or a persistent flame-sensor \/ limit trip that shuts the furnace down. In severe cases a compromised exchanger can allow carbon monoxide to leak into the home — making prompt replacement essential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The \u003cstrong\u003e26L24\u003c\/strong\u003e is engineered to the exact dimensions, alloy, and pressure tolerances of your Lennox furnace. Aftermarket substitutes may not seat correctly against the burner box or vent, risking poor combustion, voided warranties, and safety hazards. Installing the genuine Lennox part restores rated AFUE efficiency, proper flame containment, and long-term reliability. Professional installation by a licensed HVAC technician is strongly recommended.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081070428531,"sku":"LNX-26L24","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-26l24","provider":"National HVAC Parts","version":"1.0","type":"link"}