{"product_id":"oem-lennox-heat-exchanger-assembly-76m61","title":"OEM Lennox Heat Exchanger Assembly — 76M61","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e76M61\u003c\/strong\u003e heat exchanger assembly is the core heating element of your Lennox gas furnace, transferring burner heat into your home's air supply while keeping combustion byproducts safely contained. Subjected to continuous expansion and contraction with every heating cycle, this component is one of the most safety-critical parts of the furnace and must remain fully intact.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include cracks, rust, or corrosion on the exchanger surfaces, a burner flame that flutters or lifts when the blower engages, soot deposits, unusual odors during operation, and carbon monoxide alarms. Any of these warrants immediate professional inspection and replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The Lennox \u003cstrong\u003e76M61\u003c\/strong\u003e is engineered to the precise metallurgy, wall thickness, and dimensional tolerances of your original assembly. Aftermarket alternatives can warp, seal poorly, or crack under thermal stress, creating carbon monoxide risks and voiding your warranty. Choosing the factory-correct OEM assembly ensures a proper fit, rated efficiency, and safe, dependable heating for years to come.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081075507571,"sku":"LNX-76M61","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-76m61","provider":"National HVAC Parts","version":"1.0","type":"link"}