{"product_id":"oem-lennox-heat-exchanger-kit-15u78","title":"OEM Lennox Heat Exchanger Kit — 15U78","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e15U78\u003c\/strong\u003e heat exchanger kit provides the complete assembly and hardware needed to restore safe, efficient heat transfer in your Lennox gas furnace. As a factory-matched kit, it includes the components required for a proper installation, transferring combustion heat to your home's airflow while safely isolating flue gases.\u003c\/p\u003e\u003cp\u003eSigns that your existing heat exchanger has failed include visible cracks or corrosion, soot buildup, a flickering or yellow burner flame, popping and banging sounds during ignition and shutdown, and elevated carbon monoxide levels. Because a compromised exchanger can leak combustion byproducts into living areas, replacement should never be postponed.\u003c\/p\u003e\u003cp\u003eThe OEM \u003cstrong\u003e15U78\u003c\/strong\u003e kit is built to Lennox's exact engineering standards, ensuring every part fits correctly and performs as intended for compatible furnace models. Generic or partial aftermarket solutions risk improper fit, reduced efficiency, and voided warranties. Trust genuine Lennox for a safe, code-compliant repair that lasts.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081072361843,"sku":"LNX-15U78","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-kit-15u78","provider":"National HVAC Parts","version":"1.0","type":"link"}