{"product_id":"oem-lennox-heat-exchanger-assembly-19a64","title":"OEM Lennox Heat Exchanger Assembly — 19A64","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e19A64\u003c\/strong\u003e heat exchanger assembly is the primary heat-transfer component in your Lennox gas furnace. As the burners fire, this assembly absorbs combustion heat and passes it to the air moving across it, delivering warm air throughout your home while sealing off exhaust gases. Built to Lennox factory specifications, it drops in for a precise fit and dependable performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Watch for cracked or corroded sections, a burner flame that rolls out or changes shape when the blower starts, a metallic or burning smell, soot, or frequent limit-switch shutdowns. Any of these can indicate a breach that risks carbon monoxide leakage and warrants immediate replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Lennox designs each heat exchanger around specific dimensions, alloy, and combustion airflow. The OEM \u003cstrong\u003e19A64\u003c\/strong\u003e guarantees the correct clearances and metallurgy your furnace needs to run safely and efficiently, while protecting your equipment warranty. Choose the exact assembly your Lennox furnace was engineered to use.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081068396915,"sku":"LNX-19A64","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-19a64","provider":"National HVAC Parts","version":"1.0","type":"link"}