{"product_id":"oem-lennox-heat-exchanger-assembly-73m11","title":"OEM Lennox Heat Exchanger Assembly — 73M11","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e73M11\u003c\/strong\u003e heat exchanger assembly is the critical component responsible for transferring heat from your furnace's burners to the circulating air, all while forming a sealed barrier that keeps toxic combustion byproducts out of your home's airstream. Engineered and tested to Lennox factory standards, the \u003cstrong\u003e73M11\u003c\/strong\u003e provides the exact fit and reliable thermal performance your furnace demands.\u003c\/p\u003e\u003cp\u003eCommon symptoms of a deteriorating heat exchanger include cracks or rust on the metal, a burner flame that dances or changes color when the blower runs, soot deposits, unusual smells during operation, and frequent tripping of the high-limit safety switch. Because a breached heat exchanger can release carbon monoxide, these warning signs should never be ignored.\u003c\/p\u003e\u003cp\u003eSelecting an OEM Lennox \u003cstrong\u003e73M11\u003c\/strong\u003e is the safe, smart choice. Heat exchangers are safety-critical parts where precise dimensions, material grade, and weld quality are non-negotiable. Genuine Lennox components guarantee a proper seal and correct model fit, preserve your equipment warranty, and restore the rated efficiency and safe operation your system was built to deliver — assurances aftermarket alternatives simply can't promise.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081074622835,"sku":"LNX-73M11","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-73m11","provider":"National HVAC Parts","version":"1.0","type":"link"}