Converting a fire table from propane to natural gas is a practical decision for many outdoor living enthusiasts. While propane offers portability, natural gas provides a more permanent, cost-effective solution for dedicated spaces like patios and built-in seating areas. This process requires careful planning and specific components to ensure safety and optimal performance, making it a project that demands attention to detail.
The appeal of a natural gas conversion lies primarily in its convenience and long-term efficiency. Eliminating the need for heavy 20-pound propane tanks frees up space and removes the hassle of frequent refills or replacements. If your fire table is positioned in a fixed location, connecting it to a dedicated natural gas line transforms it into a seamless part of your landscape, providing instant warmth without the interruption of tank changes.
Understanding the Core Differences
Before diving into the conversion process, it's crucial to understand the fundamental differences between propane and natural gas. Propane is stored under pressure as a liquid, while natural gas is delivered as a vapor at a much lower pressure. This distinction means that the orifice size and pressure regulation must be altered to match the new fuel source. Using the wrong components can lead to a weak flame or, worse, dangerous operating conditions.
Essential Components for Conversion
A successful conversion requires a specific set of parts designed to handle the transition in fuel type. You cannot simply "flip a switch"; the system must be adapted to accommodate the distinct properties of natural gas. Investing in a high-quality conversion kit is the safest and most reliable way to ensure compatibility and adherence to safety standards.
Key Parts Included in a Conversion Kit
| Component | Propane Function | Natural Gas Function |
|---|---|---|
| Orifice | Smaller hole for high-pressure liquid | Larger hole for low-pressure vapor |
| Pressure Regulator | Moderates high tank pressure (e.g., 11" water column) | Adjusts to utility line pressure (e.g., 3.5" water column) |
| Hose and Fittings | Rated for propane use | Rated for natural gas use |
The Step-by-Step Process
While the procedure can vary slightly depending on the table model, the general steps remain consistent. Safety is paramount, so always turn off the gas supply and allow the unit to cool completely before beginning any work. Carefully disassemble the gas line components, replacing each part with the natural gas-specific alternatives from your kit. The orifice is particularly sensitive, and even small debris can clog the new, larger opening, so meticulous cleaning is essential.
When to Call a Professional
If your fire table is not located near an existing natural gas line, the project becomes significantly more complex. Tapping into the main utility line requires digging, trenching, and piping expertise, which involves local regulations and permits. In these scenarios, hiring a licensed gas technician is not just recommended—it is essential for ensuring the work is done correctly and safely. They will handle the pressure adjustments and line routing, giving you peace of mind and guaranteeing a code-compliant installation.
Performance and Safety Benefits
Once the conversion is complete, the advantages become immediately apparent. Natural gas provides a steady, consistent flame that is less susceptible to wind interference compared to propane. This reliability enhances the ambiance and functionality of your outdoor space year-round. Furthermore, removing the propane tank eliminates the primary safety hazard associated with flammable gas storage, reducing risk and allowing you to relax and enjoy your fire feature with confidence.
