{"product_id":"oem-lennox-heat-exchanger-assembly-612998-19-14d68","title":"OEM Lennox Heat Exchanger Assembly (612998-19) — 14D68","description":"\u003cp\u003eGenuine OEM Lennox \u003cstrong\u003e14D68\u003c\/strong\u003e heat exchanger assembly, cross-referenced to Lennox part numbers 612998-19 and 610280-08. The heat exchanger captures heat from the burner flame and transfers it into the air stream heating your home, all while keeping combustion byproducts sealed away from that air. It is central to safe, efficient operation of your Lennox furnace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A compromised heat exchanger typically shows cracks or heavy rust, a burner flame that rolls out or wavers when the blower starts, metallic pinging and rumbling as the unit heats and cools, soot deposits, and elevated carbon monoxide levels that may trigger a CO alarm. Reduced warm-air output and higher fuel bills are common as well.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e This is a safety-critical, furnace-specific component with no room for compromise. The factory \u003cstrong\u003e14D68\u003c\/strong\u003e assembly is produced to Lennox's precise dimensions and material specs for a leak-tight seal and rated combustion efficiency. Non-OEM substitutes may warp, seal poorly, or crack early, creating a carbon monoxide hazard. Installing the genuine Lennox exchanger protects your family and keeps the equipment performing as designed.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081066561907,"sku":"LNX-14D68","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-612998-19-14d68","provider":"National HVAC Parts","version":"1.0","type":"link"}