Top 6 Burner Natural Gas Grills for Ultimate BBQ Control
Lead Gas Grill Technician & Senior BBQ Equipment Editor at OutdoorGasGrills · NFI Certified Gas Specialist · KCBS Certified Pitmaster · 14+ Years Grill Diagnostics · 14+ years in gas grill mechanical repair, propane/natural gas flow calibration, and hands-on outdoor cooking equipment testing
The best Best 6 Burner Natural Gas Grill is the Monument Grills Denali Series, the only one here that combines smart temperature monitoring with a massive stainless steel cooking surface. It’s built for serious backyard chefs who want precision control without leaving their phone.
Want a dedicated flat-top searing station instead? The Nexgrill Deluxe gets you there, as long as you’re okay trading some of the high-end tech features for robust, traditional grilling power and a versatile griddle insert.
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This guide tells you which grill actually fits your patio setup before you commit to installation. We’ll also flag the buyers who should skip this category entirely because they lack the necessary gas line infrastructure or outdoor kitchen space.
Everything below comes from current Amazon product data, manufacturer specifications, and aggregated owner track records. We haven’t physically tested these units in our own backyards, but we’ve analyzed thousands of verified buyer reports to bring you the truth.
Quick Answer: The Best 6 Burner Natural Gas Grill
The Monument Grills Denali Series takes the top spot for its blend of technology and durability. Here is the ranked lineup:
- Monument Grills Denali Series (Best Overall Tech): Smart sensors offer precise heat management for pro-level results.
- Nexgrill Deluxe 6-Burner Natural Gas Grill (Best Versatile Cooking): Includes a removable griddle insert for eggs, pancakes, and searing.
- SPIRE 36" Built-in 6 Burner Dual (Best for Custom Installations): All 304 stainless steel construction designed specifically for built-in kitchens.
- Flintex Built Natural Gas Outdoor Kitchen (Best Maximum Space): Offers an enormous 860 sq.in. cooking area for large gatherings.
- Monument Grills 6+1 Burner Smart Propane (Best Bundle Value): Ships with pizza stone, rotisserie kit, and cover included in the box.
Thinking about smaller setups or portable options instead? Jump to Who Should NOT Buy below before you spend anything.
Comparison Table
Here's the lineup at a glance: photo, product, who it's built for, and our /10 score.
| Photo | Product | Best for | Score | Buy |
|---|---|---|---|---|
 | Monument Grills Denali Series | Smart Temp Control Enthusiasts | 8.9/10 | Check price → |
 | Nexgrill Deluxe 6-Burner Natural Gas Grill | Versatile Griddle Cooks | 8.5/10 | Check price → |
 | SPIRE 36" Built-in 6 Burner Dual | Permanent Outdoor Kitchens | 8.2/10 | Check price → |
 | Flintex Built Natural Gas Outdoor Kitchen | Large Family Gatherings | 7.8/10 | Check price → |
 | Monument Grills 6+1 Burner Smart Propane | All-In-One Accessory Kits | 8.7/10 | Check price → |
Scroll sideways on small screens to see every column.
Monument Grills Denali Series: Best Smart Tech for Precision Grilling
Nexgrill Deluxe 6-Burner Natural Gas Grill: Best Versatile Griddle Option
SPIRE 36″ Built-in 6 Burner Dual: Best for Permanent Installations
Flintex Built Natural Gas Outdoor Kitchen: Best for Massive Capacity
Monument Grills 6+1 Burner Smart Propane: Best Complete Package
Buying Guide: Heat Power, Material Durability, and Installation Needs
Choosing the right six-burner grill involves balancing raw horsepower with longevity. These picks span various price tiers and feature sets, so understanding what drives performance helps you avoid overspending on gadgets you won't use.
How Many BTUs Do You Actually Need?
More burners don't always mean hotter cooking. Each burner typically outputs between 10,000 and 15,000 BTUs. A six-burner setup usually ranges from 60,000 to 90,000 total BTUs.
For most suburban households, 70,000+ BTUs is plenty. The Monument Grills 6+1 Burner Smart Propane hits 78,000 BTUs, striking a sweet spot for searing steaks while maintaining low-and-slow capabilities. Don't chase highest numbers blindly; look for even distribution instead.
Poorly designed manifolds cause hot spots regardless of total power.
Stainless Steel vs. Coated Metals
Corrosion kills grills faster than wear. Look for 304 stainless steel in the firebox and grates. Cheaper models use aluminized steel or powder-coated finishes that chip and rust within three seasons.
The SPIRE 36" Built-in 6 Burner Dual uses full 304 stainless, justifying its higher cost for permanent installations. If you live near saltwater or in rainy climates, skip coated metals entirely. Maintenance becomes endless otherwise.
Regular cleaning preserves finish integrity, but material quality sets the baseline limit.
Freestanding vs. Built-in Configurations
Do you have a concrete slab or wooden island waiting? Built-in heads like the SPIRE save counter depth but require custom enclosures. They look sleeker but demand upfront carpentry work.
Freestanding carts offer mobility and easier maintenance access. Most homeowners regret buying built-ins without professional help. Consider your skill level honestly.
If you're handy, built-ins elevate curb appeal. Otherwise, stick to rolling units that protect themselves with lids and covers. Check out our thoughts on top-rated brewers if you find six burners too bulky for your space.
Sometimes fewer burners suit tighter patios better.
Who Should NOT Buy Best 6 Burner Natural Gas Grill
Six-burner grills are the wrong purchase for three specific kinds of buyers. Here's who they are, and what to look at instead.
You Live in an Apartment or Small Balcony Space
These grills are massive. Even the compact models require significant clearance from walls and railings to meet safety standards like those outlined by the National Fire Protection Association (NFPA). You likely cannot install a natural gas line anyway.
A high-quality portable propane unit or a tabletop electric grill serves you better. Don’t force a backyard appliance onto a balcony; it violates most HOA rules and lease agreements.
You Rarely Cook for More Than Four People
Six burners imply capacity for 20+ burgers at once. If your typical dinner party is just family, you’re paying for unused real estate. Heating that much surface area wastes gas and time.
Consider stepping down in size. Our guide on compact cooking setups helps if five burners still feel excessive. Efficiency matters more than brute force for small households.
You Lack Professional Gas Installation Access
Natural gas requires a licensed plumber or HVAC technician to tap into your home’s main line. This involves permits, trenching, and inspection fees. If your property doesn’t have existing underground lines, retrofitting costs can exceed the grill price itself.
Propane offers flexibility without construction. Unless you’re building a permanent outdoor kitchen, the logistical hurdle of natural gas often outweighs the convenience benefit.
Final Verdict
The Monument Grills Denali Series remains our top pick for its smart temperature control and robust stainless steel build. It bridges the gap between prosumer tech and reliable everyday performance.
Want maximum versatility with a flat-top option? Get the Nexgrill Deluxe. Its removable griddle insert handles breakfast and searing tasks that standard grates miss, making it ideal for diverse menus.
Need a permanent fixture for a custom island? The SPIRE 36" Built-in offers unmatched durability with its all-304 stainless steel body. Just remember it requires separate cabinetry work.
If you want everything in one box, the Monument Grills 6+1 Burner Smart Propane includes the pizza stone, rotisserie, and cover. It’s the easiest path to a fully equipped station without hunting for accessories.
Still unsure if six burners fit your lifestyle? Revisit the Who Should NOT Buy section above. Sometimes less is truly more.
FAQ
What's the best 6 Burner Natural Gas Grill overall?
The Monument Grills Denali Series leads due to its integrated smart sensors and consistent heat distribution across six zones.
Do I need a professional installer for natural gas grills?
Yes. Connecting to a home’s natural gas line requires a licensed professional to ensure leak-free seals and code compliance. DIY attempts void warranties and pose serious safety risks.
Is stainless steel really better than coated metal?
304 stainless steel resists corrosion far longer than powder-coated alternatives, especially in humid or coastal environments. It maintains structural integrity even after years of exposure to rain and salt air.
Can I convert a natural gas grill to propane?
Most manufacturers sell conversion kits, but doing so may void the warranty. Always check the manual first. Improper conversion can lead to incorrect pressure settings and unsafe flame behavior.
How much space do I need around a 6-burner grill?
Maintain at least 3 feet of clearance on all sides and overhead per NFPA guidelines. This prevents fire hazards and allows safe access for cleaning and maintenance.
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