The Dometic LP Gas Orifice #50 is a precision fuel delivery component for Atwood Hydro Flame furnaces commonly found in RVs and travel trailers. This small but critical part controls the flow of propane to your furnace burner, ensuring proper combustion and consistent heating performance. If your furnace is producing weak heat, making unusual noises, or failing to ignite reliably, a worn or damaged orifice may be the culprit.
Key Features
- OEM Dometic replacement part for Atwood Hydro Flame furnaces
- Size #50 orifice specification for precise propane metering
- Direct fit replacement—no modifications needed
- Improves furnace ignition reliability and flame quality
- Affordable alternative to replacing entire furnace assembly
- Essential maintenance item for RV owners in cold climates
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 31078 |
| Orifice Size | #50 |
| Furnace Brand | Atwood Hydro Flame |
| Fuel Type | Liquid Propane (LP) |
| Material | Brass |
| Installation | Direct replacement—no adapters required |
Frequently Asked Questions
- How do I know if my orifice needs replacement?
- Signs include weak or yellow flame, delayed ignition, furnace cycling on and off unexpectedly, or a hissing sound. Orifices can become clogged by sediment or damaged by thermal stress over time.
- Is the #50 orifice the correct size for my furnace?
- The #50 is a common size for Atwood Hydro Flame furnaces, but verify your furnace model and current orifice marking before ordering. Installing the wrong size will affect heating performance and fuel efficiency.
- Can I install this myself?
- Yes, orifice replacement is a straightforward DIY task for most RV owners. Turn off propane at the tank, locate the burner assembly, and unscrew the old orifice. Screw in the new one by hand—do not overtighten. If you're uncomfortable working with propane systems, consult an RV technician.
Why Choose Elkhart RV Parts
We specialize in hard-to-find Dometic and Atwood replacement parts for RVs. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine OEM components and provide expert support to help you identify the exact part your RV needs. When your furnace fails in cold weather, we get you back on the road fast.
| Part_number | 31078 |
|---|---|
| Product_name | Dometic LP Gas Orifice #50 - Atwood Hydro Flame Furnace |
| Orifice_size | #50 |
| Fuel_type | LP Gas |
| Brand | Dometic |
| Compatible_brand | Atwood |
| Compatible_furnace_model | Hydro Flame |
| Product_type | Orifice |
| Part_category | Service Part |
| Oem_part | true |
| Function | Fuel flow meter for burner combustion |
| 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.