{"product_id":"oem-goodman-3-in-shot-burner-for-gmnt070-4b-furnace-b4022700","title":"OEM Goodman 3\" In-Shot Burner for GMNT070-4B Furnace — B4022700","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B4022700 In-Shot Burner\u003c\/strong\u003e is a genuine OEM single burner for the \u003cstrong\u003eGMNT070-4B\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Each in-shot burner directs a precise gas\/air mixture into its heat-exchanger tube for clean, efficient combustion. Over time burners can rust, clog with debris, or develop a distorted flame — causing delayed ignition (a whoomph on startup), rollout trips, or a lazy yellow flame. Replacing worn burners restores a crisp blue flame and reliable ignition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 3-inch in-shot burner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Single-port in-shot design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Coated steel for corrosion resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold as:\u003c\/strong\u003e Individual burner (order one per heat-exchanger tube)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GMNT070-4B and select Goodman\/Amana furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The genuine B4022700 matches the factory burner length, port geometry, and mounting slot so flame alignment and ignition carry-over across burners stay correct. Generic burners with slightly different dimensions can cause uneven lighting and flame-sensing problems. For proper combustion, OEM burners are the safe choice — and replace all burners as a set for even performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation difficulty:\u003c\/strong\u003e Moderate (⭐⭐⭐☆☆). Requires removing the burner assembly and manifold, then transferring burners while keeping orifice alignment. Plan 30–45 minutes. Shut off gas and power first. Recommended for experienced DIYers or a licensed technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058129224051,"sku":"GOODMAN-11668","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-3-in-shot-burner-for-gmnt070-4b-furnace-b4022700","provider":"National HVAC Parts","version":"1.0","type":"link"}