{"product_id":"oem-lennox-heat-exchanger-assembly-repair-part-10a45","title":"OEM Lennox Heat Exchanger Assembly Repair Part — 10A45","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10A45\u003c\/strong\u003e is a heat exchanger assembly repair part (factory reference 605996-67, superseding 612216-05) used to service the heat transfer section of compatible Lennox furnaces. Produced to Lennox factory tolerances, it fits precisely within the exchanger assembly to maintain proper airflow, combustion separation, and heating efficiency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e As the exchanger section wears, you may notice reduced or uneven heat output, an unstable or discolored burner flame, soot buildup, expansion and rattling noises, or nuisance high-limit shutdowns. These symptoms indicate the heat-transfer area should be inspected and the correct repair part installed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e On a combustion-adjacent, heat-transfer component, exact dimensions and material grade directly affect safety and performance. The OEM \u003cstrong\u003e10A45\u003c\/strong\u003e guarantees proper mating with adjacent parts, preserves furnace certifications, and avoids the fit and longevity issues typical of generic aftermarket replacements.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081071870323,"sku":"LNX-10A45","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-repair-part-10a45","provider":"National HVAC Parts","version":"1.0","type":"link"}