{"product_id":"oem-lennox-combustion-head-cone-end-1-20-gph-36k43","title":"OEM Lennox Combustion Head Cone End 1.20 GPH — 36K43","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e36K43\u003c\/strong\u003e combustion head cone end is a precision oil-burner component rated for a 1.20 GPH firing rate. The combustion head shapes and directs the fuel-air mixture as it leaves the nozzle, creating the turbulence and flame retention pattern needed for clean, complete combustion in your Lennox oil-fired appliance. Its geometry is matched to the specified nozzle flow rate for stable ignition and efficient heat release.\u003c\/p\u003e\u003cp\u003eSymptoms of a worn or fouled combustion head include sooting, delayed or rough ignition, pulsation or rumbling during firing, smoky exhaust, and reduced efficiency. Carbon buildup and heat erosion gradually distort the cone, degrading the flame and raising fuel consumption.\u003c\/p\u003e\u003cp\u003eOEM matters here because the \u003cstrong\u003e36K43\u003c\/strong\u003e is engineered to Lennox specifications for the 1.20 GPH rating. Using the correct factory head ensures proper flame retention, clean combustion, and compliance with your burner's designed firing performance. Verify the GPH rating matches your existing setup before installing.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081129017715,"sku":"LNX-36K43","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-burner-ribbon-LNX-36K43.jpg?v=1783759675","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-combustion-head-cone-end-1-20-gph-36k43","provider":"National HVAC Parts","version":"1.0","type":"link"}