{"product_id":"oem-lennox-heat-exchanger-assembly-rs39995b002-10y27","title":"OEM Lennox Heat Exchanger Assembly RS39995B002 — 10Y27","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10Y27\u003c\/strong\u003e (factory reference RS39995B002) is a complete heat exchanger assembly engineered as a direct replacement for compatible Lennox gas furnaces. The heat exchanger is the heart of the furnace — it transfers heat from the combustion process to the air circulating through your home while keeping toxic flue gases safely separated from the breathable air stream. A properly functioning \u003cstrong\u003e10Y27\u003c\/strong\u003e assembly is essential for both efficient heating and safe operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e visible cracks or corrosion on the exchanger, a flickering or yellow burner flame, soot buildup, rumbling or booming sounds on ignition, unusual odors, and elevated carbon monoxide readings. A cracked heat exchanger is a serious safety hazard and typically triggers a red-tagged furnace during inspection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Lennox furnaces are built to exacting combustion and airflow tolerances. The OEM \u003cstrong\u003e10Y27\u003c\/strong\u003e is manufactured to the precise metallurgy, dimensions, and pressure ratings your system was designed around — ensuring a proper seal, rated efficiency, and safe containment of combustion byproducts. Aftermarket substitutes can compromise fit, safety certification, and your equipment warranty.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081077211507,"sku":"LNX-10Y27","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-rs39995b002-10y27","provider":"National HVAC Parts","version":"1.0","type":"link"}