{"product_id":"oem-lennox-heat-exchanger-assembly-14j98","title":"OEM Lennox Heat Exchanger Assembly — 14J98","description":"\u003cp\u003eGenuine OEM Lennox \u003cstrong\u003e14J98\u003c\/strong\u003e heat exchanger assembly. This component is responsible for transferring heat from the combustion chamber to the air circulating through your Lennox furnace, while safely isolating flue gases from your home's supply air. A sound heat exchanger is essential to both efficient heating and safe furnace operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Look for cracks or corrosion on the exchanger, flame rollout or a flickering and distorted burner flame, popping or rumbling noises as the metal expands and contracts, soot buildup around the burners, and carbon monoxide detector activation. Weaker heating performance and climbing energy bills often signal that the exchanger has deteriorated.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Heat exchangers are safety-critical and engineered to exact tolerances for each Lennox model. This factory-original \u003cstrong\u003e14J98\u003c\/strong\u003e assembly meets Lennox specifications for precise fit, correct gas-to-air separation, and rated combustion efficiency. Aftermarket parts risk poor sealing, early cracking, and hazardous flue gas leakage. Choosing genuine OEM protects your household and helps maintain your furnace's warranty and long-term reliability.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081066594675,"sku":"LNX-14J98","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-14j98","provider":"National HVAC Parts","version":"1.0","type":"link"}