{"product_id":"oem-lennox-burner-shutter-85980","title":"OEM Lennox Burner Shutter — 85980","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e85980\u003c\/strong\u003e burner shutter regulates the amount of primary combustion air mixing with gas at the burner, ensuring a clean, properly proportioned flame. Correct air-to-fuel mixing is essential for efficient combustion, complete fuel burn, and safe operation of your Lennox furnace or heating appliance. The shutter is precisely sized to deliver the airflow your burner design requires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A damaged, corroded, or incorrectly set burner shutter can produce a yellow or lazy flame, sooting, delayed ignition or flame roll-out, incomplete combustion, and reduced efficiency. In some cases it can contribute to nuisance lockouts or elevated carbon monoxide levels — all indications the combustion air is not being metered correctly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Burner air metering is calibrated to your specific Lennox burner and heat exchanger. The factory \u003cstrong\u003e85980\u003c\/strong\u003e shutter matches the exact opening size and geometry Lennox engineered for proper combustion, preserving flame quality, efficiency, and safety margins. Generic or mismatched shutters can throw off the air-fuel ratio and lead to sooting or unsafe operation, so the OEM part is the reliable choice.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081133670771,"sku":"LNX-85980","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-burner-ribbon-LNX-85980.jpg?v=1783759607","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-burner-shutter-85980","provider":"National HVAC Parts","version":"1.0","type":"link"}