Dometic / Atwood 31081 Furnace Burner Orifice – #52LP (AFMD30 Furnaces) – Special Order

Dometic Atwood 31081 Burner Orifice for AFMD30 RV Furnaces

The Dometic / Atwood 31081 Furnace Burner Orifice (#52LP) is a precision propane metering component designed specifically for Atwood AFMD30 model RV furnaces. This orifice regulates the exact amount of LP gas delivered to the burner assembly, ensuring proper combustion, reliable ignition, and efficient heating performance.

If your AFMD30 furnace is experiencing weak flames, ignition delays, poor heating output, or inconsistent burner performance, the burner orifice may be clogged, worn, or damaged and require replacement.

Installing a new burner orifice restores the correct propane flow and helps maintain the proper air-to-fuel mixture needed for safe furnace operation.

⚠️ Special Order Item – Ships in 7–14 days

Features

• Genuine Dometic / Atwood replacement part
• Designed for Atwood AFMD30 RV furnaces
• #52LP propane burner orifice
• Precision gas metering for proper burner performance
• Helps restore correct flame size and heating efficiency
• Durable brass construction

Compatible Furnace Models

This burner orifice is designed for use with:

• Atwood AFMD30 RV Furnaces

Always verify your furnace model before ordering to ensure compatibility.

Common Symptoms of a Faulty Burner Orifice

You may need to replace the burner orifice if your RV furnace shows any of the following symptoms:

• Weak or unstable burner flame
• Furnace ignites but produces little heat
• Delayed burner ignition
• Furnace repeatedly attempts to ignite
• Poor propane flow to the burner assembly

Over time, burner orifices can become restricted by debris, corrosion, or residue from propane, reducing gas flow and affecting furnace performance.

FAQ

What does the furnace burner orifice do?

The burner orifice controls the amount of propane entering the burner assembly, ensuring the correct air-fuel mixture for safe and efficient combustion.

What does “#52LP” mean?

The #52 refers to the precision drill size of the orifice opening, which determines the amount of propane delivered to the burner.

Can a clogged orifice cause furnace ignition problems?

Yes. A restricted orifice can cause weak flames, ignition delays, or poor heating performance.

Can the burner orifice be cleaned?

Sometimes minor debris can be removed, but since the orifice is precision sized, replacement is often recommended if furnace performance issues continue.