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Choosing between a natural gas griddle and a propane griddle is one of the most important decisions when building your outdoor kitchen. Both fuel sources have passionate advocates, and each offers distinct advantages depending on your setup, cooking style, and long-term plans. In this comprehensive guide, we break down the key differences—from energy efficiency and cost to convenience and installation—so you can confidently choose the fuel that best powers your outdoor cooking.

Understanding the Fuel Options: Natural Gas vs Propane

Before diving into the comparison, it helps to understand the fundamental characteristics of each fuel. Natural gas is delivered via underground pipelines from municipal utility companies, while propane (also called LPG or liquid petroleum gas) is stored in pressurized tanks that can be refilled or exchanged. Both fuels burn cleanly and produce high heat, but they behave differently in terms of pressure, BTU output, and storage.

A natural gas griddle connects directly to your home's gas line, providing an unlimited fuel supply as long as the connection is active. A propane griddle uses portable tanks—typically 20-pound cylinders for standard griddles or larger tanks for high-output stations. This portability makes propane ideal for tailgating, camping, or renters who can't modify a gas line.

BTU Output and Heat Performance

One of the first numbers buyers look at is BTUs (British Thermal Units), which measure heat output. Propane generally delivers about 2,500 BTUs per cubic foot, while natural gas provides around 1,000 BTUs per cubic foot. This means propane burns hotter per unit volume. However, griddle manufacturers design burners specifically for each fuel type, so a properly adjusted natural gas griddle can still reach searing temperatures.

For example, the Original 36in Griddle Cooking Station W/Cutting Board is available in both natural gas and propane configurations. When running on propane, you may notice slightly faster preheat times, especially in cold weather. But with natural gas, you get consistent, even heat across the cooking surface without worrying about tank pressure dropping as the fuel level decreases.

Cost Comparison: Upfront and Long-Term

Cost is often the deciding factor. Here’s a breakdown of typical expenses:

Factor	Natural Gas	Propane
Fuel cost per BTU	Generally 30–50% cheaper	Higher per BTU
Installation cost	Professional plumber needed ($200–$800)	Minimal (tank purchase or exchange)
Equipment cost	Similar to propane models, plus conversion kits if needed	Standard pricing, no extra hardware
Refueling/exchange	None (metered by utility)	~$20 per 20-pound tank exchange

If you cook frequently—multiple times per week—natural gas can save you significant money over years of use. However, the upfront installation cost may be a barrier if your outdoor kitchen isn’t near an existing gas line. Propane users pay more per cook but avoid installation fees and can take their griddle anywhere.

Installation and Setup Considerations

Natural gas installation requires a licensed professional to tap into your home’s gas line, run piping to your outdoor kitchen, and install a shut-off valve. This can be straightforward if your gas meter is close to the cooking area, but expensive if you need long pipe runs or trenching. Some areas also require permits and inspections.

Propane is far simpler: connect a tank, ensure the regulator is properly attached, and you’re ready to cook. For portability, models like the 28” Omnivore Griddle with Hood often come with a propane hose and regulator included. You can easily disconnect and move the griddle for storage or travel. However, propane tanks must be stored outdoors and away from heat sources, and you need to monitor fuel levels.

If you’re planning a permanent outdoor kitchen with built-in counters, natural gas is the preferred choice because it eliminates visible tanks and provides a clean, integrated look. For a portable setup on a patio or deck, propane offers flexibility without permanent modifications.

Convenience and Refueling

Natural gas wins on convenience: you never run out of fuel mid-cook. No swapping tanks, no trips to the exchange station, no guessing how much fuel is left. This is a huge advantage for long cooks like smoking or slow-roasting, or for hosting large gatherings where you need sustained high heat.

Propane requires planning. A 20-pound tank typically lasts 18–20 hours of cooking on a medium-sized griddle, but high-heat cooking drains it faster. Running out mid-burger flip is frustrating. Having a spare tank on hand solves this, but it adds storage and logistics. For occasional cooks, this is rarely an issue; for daily use, it can become a hassle.

One workaround for propane users is to invest in a larger tank (like a 40-pound or 100-pound tank) and have it refilled by a delivery service. This mimics the convenience of natural gas while keeping the portability option open. However, large tanks require space and may need to be placed away from the house per fire codes.

Environmental and Safety Factors

Both fuels are clean-burning compared to charcoal or wood, but natural gas has a slight edge in carbon emissions per BTU. Natural gas is primarily methane, which burns more completely than propane. However, both are fossil fuels, and environmental impact depends on your local utility’s sourcing and your tank refill practices.

Safety-wise, both fuels are safe when handled correctly. Natural gas is lighter than air and dissipates quickly if a leak occurs, reducing explosion risk. Propane is heavier than air and can pool in low areas, so tanks must be stored upright and outdoors. Modern griddles include safety features like thermocouples that shut off gas if the flame goes out. Always follow manufacturer guidelines for connections and storage.

Which Fuel Is Best for Your Outdoor Kitchen?

The answer depends on your priorities:

• Choose natural gas if: You have a permanent outdoor kitchen, cook frequently, want unlimited fuel, and are willing to pay for professional installation. It’s the most economical and convenient choice for dedicated setups.
• Choose propane if: You need portability, rent your home, cook occasionally, or want a lower upfront cost. Propane is perfect for tailgating, camping, or moving your griddle between locations.

Many serious outdoor cooks start with a propane griddle to test their cooking habits, then upgrade to a natural gas conversion kit or a dedicated natural gas model if they love the setup. The 28” Omnivore Griddle with Hood offers conversion options, making it easy to switch fuels later if your needs change.

Accessories to Enhance Your Griddle Experience

Regardless of your fuel choice, the right accessories improve safety, efficiency, and cooking results. For propane users, the Propane-Chain™ Adapter Hose allows you to connect multiple tanks in series, extending cook time without swapping. This is especially useful for long smoking sessions or large parties.

For both fuel types, investing in a quality cover protects your griddle from weather and debris. While not a direct fuel accessory, a cover extends the life of your burners and gas lines, ensuring consistent performance season after season.

Final Verdict: Natural Gas or Propane?

There is no universally “best” fuel—only the best fuel for your specific situation. Natural gas offers lower operating costs and unlimited supply, ideal for permanent outdoor kitchens. Propane offers portability and simplicity, perfect for flexible setups and on-the-go cooking. Consider your cooking frequency, installation budget, and whether you plan to move your griddle. Both fuels can deliver incredible meals, from smoky breakfasts to seared steaks, so choose based on your lifestyle, not hype.

Ready to upgrade your outdoor kitchen? Explore the 28” Omnivore Griddle with Hood—a versatile propane model that can be converted to natural gas, giving you the best of both worlds. Visit our store to see the full lineup and find the perfect griddle for your backyard.