The Dometic LP Gas Orifice #49 is a critical fuel delivery component for Atwood Hydro Flame furnaces commonly found in RVs and travel trailers. This precision orifice regulates propane flow to the burner, ensuring proper combustion and efficient heating. If your furnace isn't heating adequately or won't ignite, a worn or damaged orifice may be the culprit.
Key Features
- Genuine OEM Dometic/Atwood replacement part for guaranteed compatibility
- Size #49 orifice designed for specific Hydro Flame furnace models
- Precision-engineered fuel metering for optimal propane combustion
- Direct replacement—no modifications or adapters required
- Essential maintenance component for furnace reliability and safety
- Long shelf life when stored properly in dry conditions
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 31077 |
| Orifice Size | #49 |
| Manufacturer | Dometic (Atwood) |
| Application | Hydro Flame RV Furnaces |
| Fuel Type | Liquid Propane (LP) |
| Installation | Direct replacement |
Frequently Asked Questions
- Q: How do I know if my orifice needs replacement?
- A: Signs include weak heating output, furnace won't ignite, yellow/sooty flame instead of blue, or furnace cycling on and off. A clogged or damaged orifice restricts fuel flow and prevents proper combustion.
- Q: Is this orifice compatible with all Atwood Hydro Flame furnaces?
- A: No. The #49 size is specific to certain Hydro Flame models. Verify your furnace model number before ordering. Using the wrong orifice size can cause heating problems or safety issues.
- Q: Can I clean my existing orifice instead of replacing it?
- A: Orifices should not be cleaned or altered. They are precision-engineered components. Even small scratches or debris can affect fuel flow. Replacement is the safest and most reliable solution.
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 find the exact part you need. Trust us to keep your RV running reliably.
| Product name | Dometic LP Gas Orifice #49 - Atwood Hydro Flame Furnace |
|---|---|
| Part number | 31077 |
| Orifice number | 49 |
| Type | LP Gas Orifice |
| Furnace compatibility | Atwood Hydro Flame |
| Brand compatibility | Dometic |
| Application | RV Furnace Burner Systems |
| Part category | Service Part |
| Part type | OEM Replacement |
| Function | Propane Fuel Flow Regulation |
| Installation | Direct Replacement - No Modifications Required |
| Condition | New |
| Use case | Furnace Performance Issues Resolution |
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.