Key takeaways
- Porcelain-enameled cast iron: holds heat well and creates pronounced searing marks. It is heavy and should not be scraped with tools that chip the coating.
- Stainless-steel rods: resist rust, heat quickly and are easier to maintain. Thicker rods generally retain heat better than thin stamped grates.
- Stainless-steel cooking grids: are a strong long-term choice in wet or coastal conditions, provided the steel is genuinely corrosion-resistant and cleaned regularly.
The best natural gas grills are the Weber Genesis E-325s for most households, the Napoleon Prestige 500 RSIB for larger entertaining, and a premium built-in grill such as the Lynx L30TR-NG when cabinetry and maximum weather resistance matter more than price.
Natural gas is a practical choice if your home already has a suitable gas line: fuel delivery is continuous, operating cost is usually predictable, and you avoid storing propane cylinders. The trade-off is permanent placement. A natural gas grill cannot be moved freely, and installation should be checked by a qualified gas professional and follow local codes.
Our top picks
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Best natural gas grills compared
| Grill | Primary cooking area | Main-burner output | Notable features | Best for |
|---|---|---|---|---|
| Weber Genesis E-325s NG | 513 sq in | 39,000 BTU | Three burners, expandable top grate, porcelain-enameled cast-iron grates | Most families and first-time natural-gas buyers |
| Napoleon Prestige 500 RSIB NG | 760 sq in total | 80,000 BTU total system output | Four main burners, rear infrared burner, infrared side burner | Frequent entertaining and multi-zone cooking |
| Broil King Regal S 490 Pro NG | 500 sq in primary area | 60,000 BTU total | Four burners, rear rotisserie burner, side burner, stainless rod grates | Rotisserie cooking and high-output searing |
| Lynx L30TR-NG built-in | 600 sq in | 73,000 BTU total | Three burners, ceramic briquettes, rotisserie system, 304 stainless steel | Custom outdoor kitchens and long-term ownership |
Cooking-area figures are not perfectly comparable: some manufacturers separate primary grate space from warming-rack space, while others publish a combined total. For a useful comparison, focus first on the primary area and treat the upper rack as secondary capacity.
Our picks by situation
| Your situation | Best fit | Why |
|---|---|---|
| Cooking for two to five people once or twice a week | Weber Genesis E-325s NG | Enough primary space without the cost and footprint of a large premium grill |
| Hosting groups and cooking different foods simultaneously | Napoleon Prestige 500 RSIB NG | Large surface, multiple heat zones, infrared side burner and rear burner |
| Steaks, roasts and rotisserie meals are priorities | Broil King Regal S 490 Pro NG | Strong burner package and useful rotisserie configuration |
| Building a permanent outdoor kitchen | Lynx L30TR-NG | Built-in format, heavy 304 stainless construction and integrated high-end features |
Head-to-head: what separates these grills?
Cooking surface and burner output
A 500-square-inch primary grate is enough for a typical family meal: roughly eight to ten burgers, several chicken pieces, or two medium pork loins, depending on spacing. A grill near 750 square inches gives you room for a hot zone, a moderate zone and an indirect-cooking zone without crowding the food.
BTU output should not be judged alone. Burner design, lid insulation and the distance between burners and grates determine how effectively that output reaches the food. The Weber’s 39,000 BTU rating is adequate for its cooking area, while the larger Napoleon and premium built-in grills provide more output for faster recovery after the lid opens. High output is most valuable when cooking cold-weather meals, large quantities or thick cuts—not simply for leaving every burner on high.
Heat distribution and control
Three or four independently controlled burners are more useful than a single high-output burner. They allow direct cooking over one section and indirect cooking elsewhere. This matters for whole chickens, ribs and delicate vegetables.
The Genesis uses a three-burner layout with a dedicated sear zone, while the Napoleon and Broil King add specialized infrared burners. Infrared burners can create intense localized heat for steaks, but they require closer attention because food can overcook quickly. The Lynx uses ceramic briquettes above the burners to help spread heat and vaporize drippings; these can improve consistency, but they must be inspected and replaced if they crack or become heavily contaminated.
Grates: cast iron versus stainless steel
- Porcelain-enameled cast iron: holds heat well and creates pronounced searing marks. It is heavy and should not be scraped with tools that chip the coating.
- Stainless-steel rods: resist rust, heat quickly and are easier to maintain. Thicker rods generally retain heat better than thin stamped grates.
- Stainless-steel cooking grids: are a strong long-term choice in wet or coastal conditions, provided the steel is genuinely corrosion-resistant and cleaned regularly.
For most owners, grate material matters less than grate thickness, replacement cost and whether spare parts remain available. A grill with easily sourced replacement grates can be cheaper to own than a less expensive model with proprietary parts.
Side burners and rotisserie systems
A side burner is useful for simmering sauce, boiling corn or keeping a pan outside rather than carrying it between the kitchen and patio. It is not essential if you rarely use cookware outdoors. The Napoleon’s infrared side burner is particularly suited to searing, while conventional side burners are more flexible for pans.
Rear infrared burners and rotisserie kits add value for people who regularly cook whole chickens, roasts or large cuts. They add complexity, however: the motor, spit rod, forks and rear burner need storage and cleaning. Do not choose a rotisserie-equipped grill solely because the feature sounds impressive if you mostly cook burgers.
Installation requirements buyers often miss
Natural gas grills require more planning than propane models. Before ordering, confirm the following:
- Gas-line capacity: The supply pipe must provide adequate pressure and volume for the grill, especially if it shares a line with a furnace, fire pit or outdoor heater. A plumber or gas technician should size the line.
- Connection location: Measure from the shutoff valve to the grill inlet and use the manufacturer-approved connector. Never stretch or sharply bend the flexible gas line.
- Clearances: Follow the manual’s minimum distances from siding, railings, combustible walls, overhead structures and stored materials. A heat-resistant wall does not automatically meet every requirement.
- Ventilation: Built-in enclosures need proper ventilation so unburned gas cannot accumulate. Do not install a freestanding grill inside a sealed cabinet.
- Surface and access: The grill needs a stable, level base and enough clearance to open the lid, remove grates and reach the shutoff valve.
Never convert a natural-gas grill to propane, or a propane grill to natural gas, unless the manufacturer supplies an approved conversion kit and the work is completed according to local requirements. Incorrect orifices can produce unsafe flames and incomplete combustion.
Materials and weather resistance
Stainless steel is not automatically rust-proof. Better outdoor grills commonly use 304 stainless steel in important exposed panels, while less expensive models may use thinner steel or 430 stainless, which can be more vulnerable in salty or humid environments. Paint and porcelain finishes can also perform well when maintained, but scratches and chips expose underlying metal.
The parts most likely to wear first are burner tubes, heat tents or flavorizer bars, igniters, grease trays and cooking grates. Keep the grill covered only after it has cooled completely, and choose a breathable, correctly fitted cover rather than wrapping it in an airtight material that traps condensation.
After cooking, run the burners on high for about 10 to 15 minutes to loosen residue, then brush the grates when they are warm. Empty the grease tray before it fills, inspect burner ports for blockage, and avoid allowing standing water to remain inside the firebox. In coastal areas, rinse salt deposits with fresh water and dry the exterior regularly.
Is a larger grill worth the cost?
Consider usable cooking area rather than headline size. Suppose you cook twice a week for 40 weeks each year: that is 80 cooking sessions. Paying an additional $600 for a larger grill works out to $7.50 per session during the first year, before considering fuel and maintenance. That premium can be reasonable if it prevents batches from being cooked separately or lets you use indirect heat without sacrificing the main cooking zone. If you usually cook four burgers and two vegetables, the extra area is mostly unused capacity.
Typical market pricing ranges from about $900 to $1,500 for a capable freestanding natural-gas grill, $1,500 to $3,000 for a larger grill with infrared and rotisserie features, and $3,000 upward for premium built-in equipment. Installation, cabinetry, gas-line work and electrical access can add substantially to the project.
Bottom line
Choose the Weber Genesis E-325s NG for balanced size, straightforward controls and manageable ownership. Choose the Napoleon Prestige 500 RSIB NG when entertaining space and specialized burners justify a larger investment. Choose the Broil King Regal S 490 Pro NG for a strong feature set centered on rotisserie and high-heat cooking. For a permanent outdoor kitchen where materials, fit and long-term weather resistance lead the decision, the Lynx L30TR-NG is the premium choice.
