Dometic / Atwood 30887 Furnace Burner Orifice – #48 NAT

Dometic / Atwood 30887 Furnace Burner Orifice – #48 NAT

Genuine OEM Replacement

Part Number: 30887
Product Type: Furnace Burner Orifice
Size: #48
Fuel Type: Natural Gas (NAT)

Product Overview

The Dometic / Atwood 30887 Furnace Burner Orifice (#48 NAT) is a genuine OEM replacement component designed for use with select Atwood furnaces operating on natural gas.

The burner orifice precisely meters fuel flow into the burner assembly, ensuring proper combustion, stable flame characteristics, and safe furnace operation. Part 30887 is calibrated to a #48 orifice size specifically for natural gas configurations.

Replacing a damaged, clogged, or improperly sized orifice helps restore correct fuel-to-air ratio, improve ignition performance, and maintain efficient heating operation.

Manufactured to original equipment specifications, this OEM orifice provides accurate fitment and reliable long-term performance.

Key Features

• Genuine OEM Dometic / Atwood replacement part
• Burner orifice calibrated to #48 NAT
• Designed specifically for natural gas furnace models
• Ensures proper fuel metering and combustion
• Precision-machined for accurate flow rate
• Built to original equipment specifications

Compatible Applications

Part 30887 is used in select Atwood natural gas furnace models requiring a #48 burner orifice.

Important: Always verify your furnace fuel type (Natural Gas vs LP) and confirm the specified orifice size before ordering. Installing the incorrect orifice size can affect combustion performance and safety.

If you are unsure, check the data plate on your furnace or consult your manufacturer’s service documentation.

When Should You Replace the Burner Orifice?

You may need to replace your burner orifice if you experience:

• Delayed ignition
• Weak or unstable flame
• Furnace failing to stay lit
• Improper fuel conversion (LP to NAT or vice versa)
• Visible blockage or corrosion

Using the correct OEM orifice size is critical for proper combustion and safe operation.

Product Specifications

• Manufacturer: Dometic / Atwood
• Part Number: 30887
• Component: Burner Orifice
• Orifice Size: #48
• Fuel Type: Natural Gas (NAT)
• Includes: Burner orifice only

Frequently Asked Questions (FAQ)

Q: What does “#48 NAT” mean?

A: #48 refers to the orifice size calibration, and NAT indicates it is designed for natural gas applications.

Q: Will this work for LP (propane) furnaces?

A: No. LP furnaces require a different orifice size calibrated specifically for propane gas.

Q: Is this an OEM part?

A: Yes. Part 30887 is a genuine Dometic / Atwood replacement component.

Q: How do I confirm the correct orifice size for my furnace?

A: Check your furnace data plate or service manual for the specified orifice size and fuel type before ordering.