{"product_id":"delavan-0-65-45-w-oil-burner-nozzle-0-65-gph-45-degree-semi-hollow-cone","title":"Delavan 0.65-45-w Oil Burner Nozzle 0.65 Gph 45 Degree Semi Hollow Cone","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Delavan 0.65-45-w is a semi hollow cone oil burner nozzle designed for residential and light commercial oil-fired heating systems. This nozzle delivers a flow rate of 0.65 gallons per hour at a 45 degree spray angle, making it a common replacement choice for technicians servicing forced air oil furnaces, oil boilers, and oil-fired water heaters. The W style designation indicates a semi hollow cone spray pattern, which produces a ring-shaped flame pattern with reduced fuel concentration at the center. This spray type is well suited for pressure-type gun burners where a clean, stable flame is required at lower firing rates. HVAC technicians and oil burner service professionals rely on precise nozzle specifications to maintain proper combustion efficiency, reduce soot buildup, and keep heat exchangers clean. Using the correct nozzle type, angle, and flow rate is critical for safe and efficient burner operation. The 0.65 GPH rating means this nozzle is sized for smaller heating units that require a lower fuel input, which is common in older homes or zone heating applications. Delavan is a well-established manufacturer of oil burner nozzles and is recognized across the heating industry for consistent atomization quality and dimensional accuracy. Proper atomization ensures that fuel oil is broken into fine droplets for complete combustion, which reduces fuel waste and harmful emissions. This nozzle weighs 0.10 pounds and is a direct replacement for standard Delavan W series nozzles of the same size and angle. Always match the nozzle flow rate, angle, and spray pattern to the original equipment manufacturer specifications when performing a burner tune-up or service call.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSemi hollow cone spray pattern produces a stable, ring-shaped flame ideal for pressure gun burners\u003c\/li\u003e\n\u003cli\u003e0.65 GPH flow rate and 45 degree angle suit smaller oil-fired furnaces, boilers, and water heaters\u003c\/li\u003e\n\u003cli\u003ePrecise atomization promotes complete combustion, reducing soot and improving heating efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe Delavan 0.65-45-w oil burner nozzle delivers accurate fuel atomization at 0.65 GPH with a 45 degree semi hollow cone pattern, making it a reliable replacement for oil heating system service and tune-ups.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DELAVAN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 0.65-45-w\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Oil Burner Nozzle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpray Style\u003c\/strong\u003e: W Semi Hollow Cone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rate\u003c\/strong\u003e: 0.65 Gallons per Hour\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpray Angle\u003c\/strong\u003e: 45 Degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Weight\u003c\/strong\u003e: 0.10 pounds per each\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DELAVAN","offers":[{"title":"Default Title","offer_id":51120889626930,"sku":"0.65-45-W","price":19.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304881902.jpg?v=1777742487","url":"https:\/\/voomisupply.com\/products\/delavan-0-65-45-w-oil-burner-nozzle-0-65-gph-45-degree-semi-hollow-cone","provider":"Voomi Supply","version":"1.0","type":"link"}