{"product_id":"oem-lennox-heat-exchanger-10m38","title":"OEM Lennox Heat Exchanger — 10M38","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10M38\u003c\/strong\u003e (interchange 605731-18) heat exchanger is the heat-transfer heart of your Lennox gas furnace. As the burners fire, this component absorbs combustion heat and passes it to the air moving across its surface, all while containing exhaust gases within a sealed passage. Built to original Lennox specifications, it delivers the correct temperature rise and airflow characteristics your furnace was designed around.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Watch for a distorted or rolling burner flame, visible rust, cracks, or holes in the metal, soot deposits, a persistent burning smell, or repeated tripping of the high-limit or rollout switches. Any crack in the exchanger can leak carbon monoxide into your home's air, so a suspected failure should be addressed immediately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Heat exchangers are combustion-sealed, safety-critical parts where fit and metallurgy are non-negotiable. The genuine Lennox \u003cstrong\u003e10M38\u003c\/strong\u003e matches the exact dimensions, alloy, and weld quality of the factory unit, ensuring a proper seal and preserving your furnace warranty. Trust the OEM part for a safe and durable repair.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081064235379,"sku":"LNX-10M38","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-10m38","provider":"National HVAC Parts","version":"1.0","type":"link"}