Liquid Propane vs. Natural Gas Grills at a Glance
A well-built grill performs nearly identically on either fuel — the difference isn’t in the cooking, it’s in ownership. Natural gas connects to your home’s utility line for an unlimited supply but locks the grill in one place. Propane runs on portable tanks you refill or exchange, trading unlimited fuel for the freedom to move the grill wherever you want.
Natural Gas Grills: Pros and Cons
| Pros | Cons |
|---|---|
| Unlimited fuel supply — never runs out mid-cook | Requires an existing gas line or professional installation |
| Never buy, refill, or exchange tanks | Grill is permanently fixed in place |
| Lower long-term fuel cost, especially for frequent grilling | Higher upfront installation cost if a new line is needed |
| Cleaner setup — no tank taking up patio space | Not available in every home or location |
Natural gas makes the most sense if you already have a gas line near your patio, you grill often enough that the lower per-BTU cost adds up, and the grill is staying in one permanent spot as part of an outdoor kitchen.
Liquid Propane Grills: Pros and Cons
| Pros | Cons |
|---|---|
| No utility hookup required | Tanks run dry and need refilling or swapping |
| Portable — move it around the patio, take it tailgating or camping | Ongoing refill/exchange costs add up over time |
| Quick, simple installation | Have to monitor fuel level so you don’t run out mid-cook |
| Higher heat output per cubic foot of gas | Spare tanks need storage space |
Propane makes the most sense if you rent, might move, want to relocate the grill seasonally, or simply don’t have a natural gas line available.
Does Fuel Type Change How Food Tastes or Cooks?
No — the fuel itself doesn’t change flavor or cooking performance in any meaningful way. Manufacturers design grills specifically for one fuel or the other, matching burner and orifice size to that fuel’s pressure and energy density, so a natural-gas grill performs just as well on natural gas as the propane version performs on propane. What actually affects your results is grill quality, burner design, and grate material — not which gas is feeding the burner.
Can You Run a Propane Grill on Natural Gas (or Vice Versa)?
No, not without an approved conversion kit — and in most cases, not at all. Propane and natural gas are delivered at different pressures and require different burner orifices, regulators, and valves. Propane is stored under pressure and burns hotter per cubic foot; natural gas runs at lower pressure and needs larger orifices to deliver comparable heat. Running the wrong fuel through a grill built for the other can mean poor performance at best and a genuine safety hazard at worst — irregular flames, incomplete combustion, or a fuel leak.
If you want to switch a grill from one fuel to the other, check whether the manufacturer sells an official conversion kit for that specific model. If no kit exists, don’t attempt to improvise one — buy the grill built for the fuel you actually have access to.
How to Tell If Your Grill Is Natural Gas or Propane
A few practical ways to check:
- Look at the connection. Propane grills connect to a tank via a hose and regulator, usually sitting next to or below the grill. Natural gas grills connect via a fixed line, often with a quick-connect fitting, running to your home’s gas supply.
- Check the rating plate. Most grills have a manufacturer’s data plate (often inside the lid or on the cart frame) listing the fuel type and BTU rating.
- Check the orifice size and hose. Natural gas grills typically use a longer, more flexible hose designed to reach a fixed household connection, rather than a short hose meant to reach a tank sitting beside the grill.
- When in doubt, check the manual or model number against the manufacturer’s website — the fuel type is part of the model’s spec sheet.
Cost Comparison: Which Is Cheaper Long-Term?
Natural gas is cheaper per unit of energy over time, since it’s billed through your home utility rather than purchased in discrete tank refills. Propane has a higher ongoing cost per BTU, but a lower barrier to entry — no installation, no gas line, just connect a tank and go. If you grill frequently and already have a gas line (or are willing to pay for installation), natural gas usually wins on total cost over several years. If you grill occasionally or don’t have gas-line access, propane’s lower upfront cost often makes more financial sense.
Which Should You Choose?
Start with a simple question: is the grill staying in one permanent spot, and do you already have (or want to install) a natural gas line? If yes, natural gas is the more convenient long-term choice. If you want to move the grill, don’t have gas-line access, or want to avoid installation costs, propane is the more practical option — and it’s the more common choice for freestanding grills generally.
Once you’ve settled on a fuel type, it’s worth thinking about grill type too — if you’re weighing something beyond a standard gas grill, see our comparison of infrared grill benefits vs. charcoal. And whichever you choose, timing the purchase matters: check our guide to the worst time to buy a grill before you buy.