{"product_id":"oem-lennox-heat-exchanger-assembly-10y64","title":"OEM Lennox Heat Exchanger Assembly — 10Y64","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10Y64\u003c\/strong\u003e heat exchanger assembly (factory reference RS39995B001) is the core combustion component in your Lennox gas furnace. It moves heat from the burned gas into the air distributed throughout your home while keeping flue gases sealed away from your indoor air. Built to precise Lennox specifications, this assembly preserves correct airflow, flame stability, and rated heating efficiency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include cracks, rust, or scaling on the exchanger surface, an unsteady or yellow burner flame, booming or popping at ignition, soot accumulation, and rising carbon monoxide levels. Because a cracked heat exchanger is a safety hazard, replacement should be performed by a qualified HVAC technician right away.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Lennox furnaces are calibrated to the exact metallurgy and geometry of their factory heat exchangers. An OEM \u003cstrong\u003e10Y64\u003c\/strong\u003e ensures proper heat transfer, secure flue containment, correct fit, and warranty compliance that generic aftermarket parts cannot guarantee. In stock and ships same day before 3PM CST.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081075016051,"sku":"LNX-10Y64","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-10y64","provider":"National HVAC Parts","version":"1.0","type":"link"}