{"product_id":"oem-lennox-heat-exchanger-assembly-13x22","title":"OEM Lennox Heat Exchanger Assembly — 13X22","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e13X22\u003c\/strong\u003e heat exchanger assembly (also identified as 612222-28) is the primary heat-transfer component in your gas furnace, delivering combustion heat to your home's air while keeping flue gases safely separated from the airstream. Built to Lennox factory specifications, it ensures the correct fit, sealing, and efficiency your furnace was engineered to provide.\u003c\/p\u003e\u003cp\u003eHeat exchangers degrade after years of expansion and contraction. Look for cracks, rust or scaling, a yellow or wavering burner flame, soot buildup, strange odors, and short-cycling. A cracked exchanger poses a serious carbon monoxide risk and should be replaced right away.\u003c\/p\u003e\u003cp\u003eChoosing an OEM Lennox \u003cstrong\u003e13X22\u003c\/strong\u003e matters because heat exchangers are safety-critical and dimensionally precise. Aftermarket alternatives may not seal correctly against the burner box or draft inducer, causing flame disruption, condensation damage, and dangerous flue-gas leakage. The genuine assembly guarantees a proper fit, restores rated performance, and keeps your Lennox furnace safe and warranty-compliant.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081073181043,"sku":"LNX-13X22","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-13x22","provider":"National HVAC Parts","version":"1.0","type":"link"}