{"product_id":"atwood-30887-furnace-orifice-48-nat-dometic-oem","title":"Atwood 30887 Furnace Orifice #48 NAT | Dometic OEM","description":"\u003cp class=\"nvn-hero\"\u003eThe Dometic Atwood 30887 is the genuine #48 natural gas burner orifice for Atwood RV furnaces. This little brass jet meters gas into the burner for a clean, steady flame. If your natural-gas Atwood furnace is running weak or won't light because the orifice is clogged or damaged, this OEM replacement puts it back to spec.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Dometic Atwood 30887 is the #48 natural gas burner orifice for Atwood RV furnaces. It's a small brass jet, but it does one important job. It meters the flow of gas into the burner so the flame lights clean and burns steady. When that orifice gets clogged or damaged, the furnace either won't fire or runs weak and sooty. This is the genuine OEM replacement, sized #48 and drilled for natural gas.\u003c\/p\u003e\n\u003cp\u003eHere's the part that trips people up. This orifice is the NAT version, which means natural gas. That's not the same as LP or propane. Natural gas runs at a lower pressure and carries less energy per cubic foot, so the orifice has to be bored to a different size to deliver the right BTU output. If your Atwood furnace is plumbed to a natural gas supply, say a park-model trailer on a permanent hookup or a unit set up for a natural-gas line, this is your part. If you're running propane out of a bottle or an onboard LP tank like most travel trailers and motorhomes do, you need the LP orifice instead, not this one. Getting the gas type right isn't optional. The wrong orifice throws off the air-to-fuel mix, and that's a combustion problem you don't want in an enclosed space.\u003c\/p\u003e\n\u003cp\u003eNot sure if #48 is your size? Atwood furnaces use different orifice sizes depending on the model and BTU rating, so the safest move is to pull your furnace's parts breakdown or the spec sticker and confirm it calls for the #48 natural gas orifice. Matching the number matters. An orifice that's too large or too small changes how much gas reaches the burner, and that shows up as a flame that's either starved or over-fired.\u003c\/p\u003e\n\u003cp\u003eWhy would you be shopping for a burner orifice in the first place? Usually it's a no-heat or low-heat call. The orifice opening is tiny, so it doesn't take much to choke it. Dust, rust flakes off the burner tube, and, believe it or not, spider webs are a classic culprit. Mud daubers and spiders love to nest in the warm, dark burner path over the off-season, and a single web across the jet is enough to starve the flame. If your furnace lights but the flame looks lazy and yellow, or it keeps cycling on the high-limit switch because it isn't burning right, the orifice is one of the first things a tech checks. Sometimes it cleans up. Other times the brass is pitted or someone drilled it out chasing a fix, and then you just replace it.\u003c\/p\u003e\n\u003cp\u003eKeep in mind the orifice is only part of the picture. If your furnace still won't heat after a fresh #48 orifice, look at the gas pressure at the appliance, the sail switch, and the limit switch too. But when the flame is clearly gas-starved and the rest of the furnace checks out, a clean, correctly sized orifice is often the whole fix.\u003c\/p\u003e\n\u003cp\u003eSwapping the orifice is a straightforward job if you're comfortable working around the burner assembly and you shut the gas off first. It threads into the burner, and you'll want the seat clean and the new orifice snugged down so there's no gas leak around the threads. Always leak-check with soapy water after you button it up. If you're not comfortable working on a gas appliance, have an RV tech handle it. It's a cheap part, but it's still gas.\u003c\/p\u003e\n\u003cp\u003eBecause this is the genuine Dometic Atwood part, you're getting the exact orifice the furnace was engineered around. No guessing, no reaming out a generic jet and hoping the flame looks right. Atwood's RV furnace line is now part of Dometic, so you'll see both names on these components, but it's the same part you'd get from the original manufacturer. Keep one on the shelf if you camp somewhere with a natural-gas hookup and you count on that furnace through cold nights. A cheap orifice beats a night without heat.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eOrifice size #48 drilled for natural gas, delivers the correct gas flow for Atwood furnaces on a natural-gas supply\u003c\/li\u003e\n  \u003cli\u003eGenuine Dometic Atwood OEM part, matches the exact orifice the furnace was engineered around\u003c\/li\u003e\n  \u003cli\u003eBrass burner orifice meters gas into the burner for a clean, steady flame\u003c\/li\u003e\n  \u003cli\u003eNatural gas (NAT) specific, not interchangeable with an LP or propane orifice\u003c\/li\u003e\n  \u003cli\u003eCommon fix for a no-heat or weak, yellow flame caused by a clogged or damaged orifice\u003c\/li\u003e\n  \u003cli\u003eThreads into the Atwood furnace burner assembly for a straightforward service replacement\u003c\/li\u003e\n  \u003cli\u003eManufacturer part number 30887, sold as an orifice kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Dometic reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does #48 NAT mean on this orifice?\u003c\/summary\u003e\n    \u003cp\u003eThe #48 is the orifice size, and NAT tells you it's drilled for natural gas. Natural gas runs at a lower pressure than propane and carries less energy per cubic foot, so it needs a specific orifice bore to deliver the right BTU output. If your furnace runs on natural gas and calls for the #48 orifice, this is the one.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this orifice on a propane (LP) furnace?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is the natural gas version. Propane needs a different orifice size because it burns at a higher pressure and energy density. Putting a natural-gas orifice on an LP furnace throws off the air-to-fuel mix and creates a combustion problem. Use the LP orifice for propane setups.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre Dometic and Atwood the same brand?\u003c\/summary\u003e\n    \u003cp\u003eFor RV furnaces, yes. Dometic acquired the Atwood appliance line, so you'll see both names on these parts. This orifice is the genuine component whether it's labeled Atwood or Dometic.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich Atwood furnaces does this fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's a replacement orifice for Atwood RV furnaces that use the #48 natural gas orifice. Because Atwood used different orifice sizes across models and BTU ratings, check your furnace's parts breakdown or spec sticker to confirm it calls for the #48 NAT orifice before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy would my furnace orifice need replacing?\u003c\/summary\u003e\n    \u003cp\u003eUsually it's a clog or damage. The orifice opening is tiny, so dust, rust, and even spider webs from the off-season can choke it and starve the flame. If the orifice is pitted or someone drilled it out, replacing it restores the correct gas flow.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a genuine OEM part?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's the genuine Dometic Atwood orifice, sized exactly the way the furnace was engineered. You're not reaming out a generic jet and hoping the flame looks right.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow hard is it to replace the burner orifice?\u003c\/summary\u003e\n    \u003cp\u003eIt's a straightforward job if you're comfortable around a gas appliance. Shut the gas off, thread the new orifice into the burner, snug it down, and leak-check with soapy water. If you'd rather not work on gas, have an RV tech handle it.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat comes in the kit?\u003c\/summary\u003e\n    \u003cp\u003eIt's sold as the #48 natural gas orifice kit. If you need the full burner assembly or other furnace components, those are separate parts. When in doubt, match part number 30887 to your furnace's parts list.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eDometic Atwood 30887 Furnace Burner Orifice #48 NAT\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eDometic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eAtwood\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e30887\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e692931308876\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eFurnace Burner Orifice\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOrifice Size\u003c\/th\u003e\n\u003ctd\u003e#48\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eGas Type\u003c\/th\u003e\n\u003ctd\u003eNatural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible Equipment\u003c\/th\u003e\n\u003ctd\u003eAtwood RV Furnaces\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eOrifice Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eGenuine OEM\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eRV \/ Camper Furnace\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does #48 NAT mean on this orifice?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The #48 is the orifice size, and NAT tells you it's drilled for natural gas. Natural gas runs at a lower pressure than propane and carries less energy per cubic foot, so it needs a specific orifice bore to deliver the right BTU output. If your furnace runs on natural gas and calls for the #48 orifice, this is the one.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use this orifice on a propane (LP) furnace?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is the natural gas version. Propane needs a different orifice size because it burns at a higher pressure and energy density. Putting a natural-gas orifice on an LP furnace throws off the air-to-fuel mix and creates a combustion problem. Use the LP orifice for propane setups.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Are Dometic and Atwood the same brand?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"For RV furnaces, yes. Dometic acquired the Atwood appliance line, so you'll see both names on these parts. This orifice is the genuine component whether it's labeled Atwood or Dometic.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Which Atwood furnaces does this fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a replacement orifice for Atwood RV furnaces that use the #48 natural gas orifice. Because Atwood used different orifice sizes across models and BTU ratings, check your furnace's parts breakdown or spec sticker to confirm it calls for the #48 NAT orifice before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why would my furnace orifice need replacing?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Usually it's a clog or damage. The orifice opening is tiny, so dust, rust, and even spider webs from the off-season can choke it and starve the flame. If the orifice is pitted or someone drilled it out, replacing it restores the correct gas flow.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a genuine OEM part?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's the genuine Dometic Atwood orifice, sized exactly the way the furnace was engineered. You're not reaming out a generic jet and hoping the flame looks right.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How hard is it to replace the burner orifice?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a straightforward job if you're comfortable around a gas appliance. Shut the gas off, thread the new orifice into the burner, snug it down, and leak-check with soapy water. If you'd rather not work on gas, have an RV tech handle it.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What comes in the kit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's sold as the #48 natural gas orifice kit. If you need the full burner assembly or other furnace components, those are separate parts. When in doubt, match part number 30887 to your furnace's parts list.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Dometic","offers":[{"title":"Default Title","offer_id":45097470263389,"sku":"2010913","price":9.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_51be2c08-4b76-4bea-b14f-8186091b4605.jpg?v=1790331691","url":"https:\/\/nvnmarine.com\/products\/atwood-30887-furnace-orifice-48-nat-dometic-oem","provider":"NVN Marine","version":"1.0","type":"link"}