This LP gas orifice is a critical precision component for Atwood furnace systems in RVs. The 1.45mm orifice opening regulates propane flow to the furnace burner, ensuring proper combustion and efficient heating. If your RV furnace is running weak, producing uneven heat, or won't ignite properly, a worn or clogged orifice is often the culprit.
- Precision 1.45mm orifice diameter for exact fuel metering
- Designed specifically for Atwood furnace burner assemblies
- Genuine OEM Dometic replacement part
- Corrects weak flame, poor ignition, and heating issues
- Simple installation—no special tools required
- Essential maintenance part for propane system reliability
| Specification | Detail |
|---|---|
| Orifice Diameter | 1.45mm |
| Appliance | Atwood Furnace |
| Fuel Type | Liquid Propane (LP) |
| Part Type | Gas Orifice |
| OEM Manufacturer | Dometic |
Frequently Asked Questions
How do I know if my furnace orifice needs replacement?
Signs include weak or uneven flame, furnace won't light, reduced heat output, or yellow/orange flame instead of blue. A clogged or worn orifice restricts propane flow and disrupts combustion.
Is this orifice compatible with my specific RV furnace model?
This 1.45mm orifice is designed for Atwood furnace systems. Verify your furnace brand and model before ordering. Different orifice sizes are not interchangeable—using the wrong size will cause heating problems.
Do I need any special tools to install this orifice?
No. The orifice typically unscrews by hand or with a small wrench from the burner assembly. Installation is straightforward and takes just a few minutes. Always turn off your propane supply before removing the old orifice.
Why Elkhart RV Parts
We specialize in hard-to-find Dometic and OEM RV replacement parts. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine parts and provide expert support to help you get your RV systems running right. When you need the exact part, not a substitute, trust Elkhart RV Parts.
| Brand | Dometic |
|---|---|
| Manufacturer | Atwood |
| Part_number | 30845 |
| Product_type | LP Gas Orifice |
| Orifice_size_mm | 1.45 |
| Application | RV Furnace |
| Fuel_type | LP Gas |
| Compatible_models | AS3000AS4000 |
| Part_category | Service Part |
| Part_type | OEM Replacement |
| Function | Fuel flow regulation and combustion efficiency |
| Condition | New |
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.