{"product_id":"oem-lennox-stainless-steel-heat-exchanger-28j73","title":"OEM Lennox Stainless Steel Heat Exchanger — 28J73","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e28J73\u003c\/strong\u003e stainless steel heat exchanger assembly transfers combustion heat into your home's air supply while sealing corrosive flue gases away from the airstream. Its stainless steel construction is engineered for the demanding, condensing-side environment of high-efficiency Lennox furnaces, where acidic condensate would quickly destroy ordinary steel — making this the durable, corrosion-resistant component your system depends on.\u003c\/p\u003e\u003cp\u003eCommon symptoms of a failing heat exchanger include cracks, pinholes, or corrosion in the metal, soot accumulation, an unstable or discolored burner flame, unusual odors during heating cycles, and carbon monoxide detector activity. Any crack or breach is a serious safety hazard and calls for immediate replacement rather than repair.\u003c\/p\u003e\u003cp\u003eFor a stainless steel heat exchanger, OEM quality is essential. The Lennox \u003cstrong\u003e28J73\u003c\/strong\u003e is formed from the correct grade of stainless to survive years of thermal cycling and condensate exposure without failing prematurely. Aftermarket alternatives risk poor fit, reduced corrosion resistance, and loss of warranty coverage — the OEM assembly restores your Lennox furnace to factory safety and efficiency standards.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081070002547,"sku":"LNX-28J73","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-stainless-steel-heat-exchanger-28j73","provider":"National HVAC Parts","version":"1.0","type":"link"}