{"product_id":"oem-lennox-stainless-steel-heat-exchanger-53k75","title":"OEM Lennox Stainless Steel Heat Exchanger — 53K75","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e53K75\u003c\/strong\u003e stainless steel heat exchanger assembly transfers combustion heat into your home's airflow while sealing corrosive flue gases safely away from the air you breathe. Its stainless steel design is built for the harsh, condensate-laden environment found in high-efficiency Lennox furnaces, where acidic moisture would rapidly corrode standard steel — giving your system long-lasting, corrosion-resistant heat transfer.\u003c\/p\u003e\u003cp\u003eLook for these warning signs of a failing heat exchanger: cracks, pinholes, or corrosion, soot buildup, an unstable or yellow-tinged burner flame, unusual smells during heating, and carbon monoxide alarm activity. Because a breach allows flue gases to mix with your indoor air, any crack or hole is a safety hazard requiring immediate replacement.\u003c\/p\u003e\u003cp\u003eOEM quality is essential for a stainless steel heat exchanger. The Lennox \u003cstrong\u003e53K75\u003c\/strong\u003e uses the correct stainless grade and forming to endure years of thermal cycling and condensate exposure without premature failure. Aftermarket parts risk improper fit, weaker corrosion resistance, and voided warranties — the OEM assembly restores your Lennox furnace to its factory safety and efficiency standards.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081070068083,"sku":"LNX-53K75","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-stainless-steel-heat-exchanger-53k75","provider":"National HVAC Parts","version":"1.0","type":"link"}