{"product_id":"oem-lennox-heat-exchanger-assembly-11x38","title":"OEM Lennox Heat Exchanger Assembly — 11X38","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e11X38\u003c\/strong\u003e heat exchanger assembly is responsible for capturing heat from the burner combustion process and transferring it to the air circulating through your furnace, while safely containing and venting combustion gases away from your home. It is built to precise Lennox factory specifications for a proper fit and rated heating efficiency.\u003c\/p\u003e\u003cp\u003eSigns that a heat exchanger needs replacement include visible cracks, rust or corrosion, soot buildup, a flickering or yellow burner flame, unusual smells, and elevated carbon monoxide levels. Because a cracked exchanger is a serious safety issue, replacement should not be delayed.\u003c\/p\u003e\u003cp\u003eThe OEM Lennox \u003cstrong\u003e11X38\u003c\/strong\u003e is the right choice because aftermarket alternatives may vary in steel gauge, weld integrity, and fit — differences that can cut service life short and degrade combustion. This factory-original assembly restores safe operation, efficient heat transfer, and the durability your Lennox furnace was engineered to provide.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081067970931,"sku":"LNX-11X38","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-11x38","provider":"National HVAC Parts","version":"1.0","type":"link"}