How to Convert a Weber Natural Gas Grill to Propane?
This article provides a comprehensive guide on converting a Weber natural gas grill to propane. In summary, converting a Weber natural gas grill to propane requires replacing the natural gas regulator and hose with a propane regulator and hose, swapping the natural gas orifices for propane orifices, and potentially adjusting the air shutter.
Why Convert Your Grill?
Switching from natural gas to propane can offer several advantages:
- Portability: Propane tanks make your grill mobile, allowing you to take it camping, tailgating, or to other outdoor events. Natural gas grills are tethered to a gas line.
- Accessibility: Not everyone has a natural gas line readily available. Propane tanks are easily purchased at gas stations, hardware stores, and convenience stores.
- Cost Considerations: In some regions, propane can be more cost-effective than natural gas, especially considering natural gas connection fees. However, this varies greatly based on location and usage.
Key Components for Conversion
Before you begin, gather the necessary components:
- Propane Regulator and Hose: This connects the propane tank to the grill and regulates the gas pressure. It’s crucial to use a regulator designed specifically for propane.
- Propane Orifices: These small, precisely drilled brass fittings control the flow of gas to the burners. Propane orifices have a smaller diameter than natural gas orifices.
- Wrench Set: For removing and installing the orifices and regulator.
- Screwdriver Set: For accessing various parts of the grill.
- Leak Detector Solution: A soapy water solution to test for leaks after the conversion.
- Pipe Thread Sealant (optional): Recommended for sealing the threads on the orifice fittings.
The Conversion Process: Step-by-Step
Follow these steps carefully to safely convert your grill:
- Disconnect the Natural Gas Supply: Turn off the gas supply at the meter and disconnect the natural gas hose from the grill.
- Remove the Natural Gas Regulator and Hose: Disconnect the natural gas regulator from the grill’s manifold.
- Locate and Replace the Orifices:
- Remove the burner tubes from the firebox.
- Locate the orifices, which are typically screwed into the gas valves at the end of each burner tube.
- Using a wrench, remove the natural gas orifices.
- Install the new propane orifices, ensuring they are tightened securely. A small amount of pipe thread sealant can be used to prevent leaks.
- Install the Propane Regulator and Hose: Connect the propane regulator and hose to the grill’s manifold. Ensure a tight and secure connection.
- Reconnect the Burner Tubes: Place the burner tubes back into the firebox.
- Connect the Propane Tank: Attach the propane regulator to a full propane tank.
- Leak Test:
- Turn on the propane tank valve.
- Apply leak detector solution to all connections, including the regulator-to-tank connection, the regulator-to-manifold connection, and around the orifices.
- Look for bubbles. If you see bubbles, there is a leak. Tighten the connections or reapply pipe thread sealant and retest.
- Adjust Air Shutters (if necessary): Some grills may require adjustment of the air shutters to achieve proper combustion with propane. The flame should be blue with minimal yellow tipping. Refer to your grill’s manual for specific instructions on air shutter adjustment.
- Test the Grill: Ignite the burners and observe the flame. Ensure the burners light evenly and the flame is stable.
Troubleshooting Common Issues
- Low Flame: This is often caused by a partially blocked orifice or a faulty regulator. Check the orifice for debris and ensure the regulator is functioning correctly.
- Uneven Flame: This can be caused by a blocked orifice or a misaligned burner tube. Clean the orifice and ensure the burner tube is properly seated.
- Yellow Flame: This indicates incomplete combustion, which can be caused by insufficient air. Adjust the air shutters to allow more air into the burner.
- Propane Tank Freezing: Heavy propane usage can lead to the tank freezing. This is normal and will usually resolve itself as the tank warms up.
Safety Precautions
- Always disconnect the gas supply before working on the grill.
- Work in a well-ventilated area.
- Never use a lighter or open flame to check for leaks.
- If you are uncomfortable performing the conversion yourself, hire a qualified technician.
- Always consult your grill’s owner’s manual for specific instructions and warnings.
Component Checklist
| Component | Natural Gas | Propane |
|---|---|---|
| Regulator & Hose | High Pressure, often without regulator on household lines | Low Pressure, must have regulator |
| Orifice Size | Larger Diameter | Smaller Diameter |
| Gas Pressure (approximate) | 4″ Water Column | 11″ Water Column |
Frequently Asked Questions (FAQs)
Is it safe to convert a natural gas grill to propane?
Yes, when done correctly and with the proper components, converting a natural gas grill to propane is generally safe. It is crucial to follow all instructions carefully and test for leaks after the conversion.
Can I use the same regulator for propane as I used for natural gas?
No, you cannot. Natural gas and propane operate at different pressures, requiring different regulators. Using the wrong regulator can be dangerous.
Where can I find the correct propane orifices for my Weber grill?
You can typically find propane orifices at your local Weber dealer, online retailers, or appliance parts stores. Make sure to specify your grill model to ensure you get the correct size.
How do I know what size propane orifice I need?
The correct orifice size is typically listed in your grill’s owner’s manual or on a sticker attached to the grill. You can also contact Weber customer service for assistance.
Do I need to adjust the air shutters after converting to propane?
Possibly. It depends on the specific grill model. After converting, observe the flame. If it’s yellow, adjust the air shutters to allow more air until the flame is blue with minimal yellow tipping. Always consult your manual first.
What tools are required for this conversion?
You will need a wrench set, a screwdriver set, leak detector solution (soapy water), and optionally, pipe thread sealant. Having the right tools will make the conversion easier and safer.
How can I test for leaks after the conversion?
Mix a solution of soapy water and apply it to all gas connections. If bubbles appear, there is a leak. Tighten the connections or reapply pipe thread sealant and retest.
What happens if I don’t tighten the connections properly?
Loose connections can lead to gas leaks, which can be dangerous and create a fire hazard. Ensure all connections are tight and leak-free.
Can I convert a propane grill to natural gas?
Yes, you can convert a propane grill to natural gas, but the process is similar and requires replacing the regulator, hose, and orifices with natural gas-specific components.
How long does it take to convert a Weber grill from natural gas to propane?
The conversion process typically takes 1-2 hours, depending on your experience and the complexity of the grill.
Is it worth converting my grill from natural gas to propane?
This depends on your individual needs and circumstances. Consider the cost of propane, the portability benefits, and the availability of natural gas at your location. Evaluate these factors to determine if the conversion is worthwhile for you.
Where can I find my Weber grill’s model number?
The model number is usually located on a sticker affixed to the frame, often near the grease tray or under the side burner. This is crucial for ordering the correct replacement parts.