Skip to content

Factory-Plumbed, Seven Earn the Best Natural Gas Grill Name

Raw pork chops on a round stainless grill grate

Affiliate Disclosure: As an Amazon Associate, we earn from qualifying purchases. This does not affect the price you pay.

A natural gas grill is a different appliance from a propane grill, not the same grill with a different hose. Natural gas arrives from the utility at a much lower pressure than the gas in a propane cylinder, so the burner orifices, the valves and the regulator are sized for it. That is why the first question about any natural gas grill is not how hot it gets but how it leaves the factory.

Of the ten listings on this page, seven ship set up for natural gas. The Napoleon Rogue PRO 625, the Weber Spirit E-425, the Weber Genesis E-415 and E-315, the Bull Outlaw drop-in head, the Hygrill 25-inch built-in and the Lion L75623 32-inch all say natural gas in the title and nothing about converting. Weber is the bluntest: “Natural gas grill is factory built to operate using natural gas only.”

The other three ship for propane and convert. The MIAOSP 32-inch triple combo “comes configured for LPG use by default” and includes a natural gas conversion kit. The Flintex ships a propane hose and regulator, while “the natural gas connector is SHIPPED separately”. And the Monument, despite a model number ending in NG, says to “purchase the Monument Grills Conversion Kit model 97352(sold separately)”.

Amazon sorts them the same way. All seven factory-NG grills are filed under Natural Gas Grills, where their ranks run from #9 to #56. All three convertibles are filed under Propane Grills. A shopper browsing the natural gas category would never see them.

The second finding cuts the other way. The four best-known names here, three Webers and the Napoleon, print no BTU figure at all, and the Webers print no cooking area either. The six listings that do give a BTU total are the Lion, the MIAOSP, the Bull, the Monument, the Hygrill and the Flintex, with totals from 40,000 to 75,000. So the grills that are simplest to hook up are the hardest to compare on paper.

And none of this is a weekend job. Connecting any grill to a house gas line is work for a licensed gas fitter, and converting a grill between propane and natural gas should only ever be done as the manual describes, with the manufacturer’s kit, by a professional. We say that once here and again, in detail, further down.

This guide sorts the ten by how each one arrives: factory natural gas first, then the convertibles, with what each conversion needs. For every listing we log burner count, BTU per burner and total, cooking area, side burner, and whether it stands on a cart or drops into a counter. Star ratings and review counts were not captured for this roundup; popularity below is Amazon’s Best Sellers Rank only.

All ten were captured on 5 October 2026. All ten were in stock on amazon.com at capture, and five were flagged as scarce stock.

Our Quick Picks

Napoleon Rogue PRO 625 Natural Gas GrillBest OverallNapoleon Rogue PRO 625 Natural Gas Grill

Factory natural gas, five main burners over a stated 34 3/4 x 18 inch main area, an infrared side burner and a 15-year limited warranty.

View on Amazon

Weber Spirit E-425 Natural Gas GrillBest ValueWeber Spirit E-425 Natural Gas Grill

The lowest-priced factory-NG cart grill here, four burners with Boost Burners, a 10-year limited warranty and #10 in Natural Gas Grills.

View on Amazon

Bull Outlaw 30-Inch Natural Gas Drop-InBest Built-InBull Outlaw 30-Inch Natural Gas Drop-In

Four 15,000 BTU stainless burners, 60,000 BTU in all, 575 sq in primary plus a 176 sq in rack, NSF and CSA stated.

View on Amazon

At a Glance

Ten Natural Gas Grills, Sorted by How They Leave the Factory

Read the first column before anything else: seven arrive set for natural gas, three arrive set for propane and need parts, and the second column shows which ones let you compare heat at all.

# Model Fuel as Shipped BTU (Burners) Cooking Area Best Sellers Rank Standout Main Drawback Check Price
1
Napoleon Rogue PRO 625Napoleon Rogue PRO 625
Natural gas Not stated (5 + infrared side) 34 3/4 x 18 in main #23 in Natural Gas Grills Infrared side burner; 15-year limited warranty No BTU figure anywhere in the listing View on Amazon
2
Weber Spirit E-425Weber Spirit E-425
Natural gas Not stated (4) Not stated #10 in Natural Gas Grills Boost Burners; 10-year limited warranty; Amazon.com No BTU, no cooking area, no side burner stated View on Amazon
3
Bull Outlaw Drop-InBull Outlaw Drop-In
Natural gas 60,000 (4 x 15,000) 575 + 176 sq in #18 in Natural Gas Grills Highest stated BTU per burner; NSF and CSA Needs a counter and island; no cutout stated View on Amazon
4
Weber Genesis E-415Weber Genesis E-415
Natural gas only Not stated Not stated #26 in Natural Gas Grills Best overall rank here; 12-year warranty No BTU, cooking area or burner count stated View on Amazon
5
Weber Genesis E-315Weber Genesis E-315
Natural gas Not stated Not stated #56 in Natural Gas Grills Same Genesis burners, grates and grease tray Warranty field says 1 year; third-party seller View on Amazon
6
Hygrill 25-Inch Built-InHygrill 25-Inch Built-In
Natural gas 42,000 (3) 558 sq in #9 in Natural Gas Grills Best category rank; hookup accessories included No warranty stated; no weight stated View on Amazon
7
Lion L75623 32-InchLion L75623 32-Inch
Natural gas 75,000 (burners not stated) 830 sq in #40 in Natural Gas Grills Highest stated BTU and largest stated area here No burner count, cutout or warranty terms View on Amazon
8
Flintex RUSDI4 Built-InFlintex RUSDI4 Built-In
Propane; NG connector shipped separately 40,000 (4) 650 / 653 sq in #163 in Propane Grills Griddle included; cutout range 31.1 to 33.6 in Title and bullet disagree on cooking area View on Amazon
9
MIAOSP 32-Inch Triple ComboMIAOSP 32-Inch Triple Combo
Propane; NG kit included 63,100 (4 x 12,000 + 15,100) 687 sq in #260 in Propane Grills NG kit in the box; charcoal trays too Cutout not stated; warranty field just says 1 View on Amazon
10
Monument 41847NG CabinetMonument 41847NG Cabinet
Propane; NG kit 97352 sold separately 60,000 (4 + side) 700 sq in (510 primary) #377 in Propane Grills Only cart convertible; side burner; viewing lid Model says NG, bullet says buy the kit View on Amazon

Best Sellers Ranks and specifications are taken from each manufacturer’s Amazon listing as displayed on 5 October 2026 through a United States connection, and may change. BTU totals are as each listing states them. The Lion’s 75,000 BTU and 830 sq in are stated without a burner count or a grate and rack split. The MIAOSP total is our arithmetic from its stated burners, four at 12,000 BTU and a 15,100 BTU rear burner. The Monument’s 60,000 BTU covers four main burners and one side burner together, so it cannot be set against the main-burner totals of the others. The Bull’s 575 sq in is primary space and 176 sq in is its warming rack; the Monument’s 700 sq in is total, of which 510 is primary. The Hygrill’s 558 sq in and the MIAOSP’s 687 sq in are described as total cooking surface without a split. The Flintex title says 650 sq in and its bullet says 653. The Napoleon gives main-area dimensions rather than an area; 34 3/4 by 18 inches works out at 625.5 sq in, by our arithmetic. Ranks are category ranks as returned on 5 October 2026; overall ranks are in each detail card. Star ratings and review counts were not captured for any product here.

Scroll the table sideways to see every column

How We Chose These Ten

We researched current listings, compared manufacturer specifications and documentation, and read each listing’s fuel, burner and installation claims line by line. We did not carry out hands-on testing, and nothing below is presented as measured performance data. Star ratings and review counts were not captured for this roundup. We used Amazon Best Sellers Rank, buy-box stock and listing specifications instead, and nothing on this page describes or implies how owners have scored these grills.

  • Natural gas or natural-gas convertible only — every product here is sold either as a natural gas appliance or as a propane appliance with a stated route to natural gas. We recorded which, word for word, because that one fact decides what you will pay a gas fitter to do.
  • Conversion parts logged exactly — for every convertible we noted whether the kit or connector is in the box, shipped separately or sold separately, and quoted the listing.
  • Burners and BTU as printed — burner counts and BTU figures appear only where a listing states them. Where we divide a total by the burner count, or BTU by cooking area, it is labelled as our arithmetic. Where a listing gives nothing, we write Not stated.
  • Cooking area split where possible — primary grate and warming rack are reported separately when the listing separates them, and conflicts between title and bullets are reported both ways.
  • Format recorded — freestanding cart, cabinet, drop-in head or built-in, with the cutout dimensions where the listing gives them.
  • Grills only — every product is a complete grill, cart or built-in head. Stand-alone side burners and accessories were left out, and side burners are noted only where they come with the grill.
  • Popularity from Best Sellers Rank only — ranks are quoted exactly as returned on 5 October 2026, overall and in the category Amazon assigned.
  • Verified stock and seller — each product was the buy-box offer and in stock on amazon.com on 5 October 2026. Five were flagged as scarce stock at capture: the Napoleon, the Bull, both Genesis grills and the Hygrill.
Close view of a gas grill burner with an even row of blue flames under cooking grates
Seven of ten leave the factory set for natural gas; the other three need a connector or a kit.

The Ten Natural Gas Grills in Detail

1. Napoleon Rogue PRO 625 5-Burner Natural Gas Grill with Infrared Side Burner — Best Overall

Stainless steel five-burner gas grill on a cabinet cart with a side burner shelf and a closed domed lid

Factory natural gas, the most burners of any cart grill here, and a side burner that runs infrared.

Key Specifications

Fuel as shipped Natural gas (title; model RP625SIBNSS-2)
Main burners 5
BTU per burner / total Not stated
Main cooking area 34 3/4 x 18 in stated; 625.5 sq in by our arithmetic
Side burner Yes, infrared sear station
Grates Stainless steel
Format Freestanding cart
Size 66 x 25 x 48.5 in (W x L x H)
Listed weight 160 pounds
Warranty 15 Year Limited Warranty
Seller Amazon.com (scarce stock)
Best Sellers Rank #190,205 overall; #23 in Natural Gas Grills

Why We Recommend It

It arrives as a natural gas grill, and the listing never suggests otherwise. The title reads “5-Burner Natural Gas Grill with Infrared Side Burner”, and the model number ends in the NSS suffix that sets it apart from Napoleon’s propane version. There is no conversion talk, no kit and no default propane setup. For a buyer with a gas line already run to the patio, that is the simplest possible starting point: the fitter connects a grill that was built for the gas it is getting.

It gives a size where others give nothing. The first bullet reads “5 Main Burners Main Cooking Area 34 3/4-inches by 18-inches”. Multiply those and the main grate is about 625.5 square inches, by our arithmetic, which explains the 625 in the name. That puts its main area above the Bull’s 575 square inches of primary space and the Monument’s 510, the two other listings that separate primary from warming space. Five burners over 34 3/4 inches of width means five heat zones, and the listing frames them as main burners, separate from the side station.

It does not give a BTU figure. No total, no per-burner rating, not even for the infrared station. That is the price of choosing among the big names here; the three Webers are equally silent. You can ask Napoleon or check the manual for the rated input, and you should, because a gas fitter sizing the supply line will want the appliance’s total input anyway. But on the listing alone, this grill cannot be compared on heat with the Bull or the Hygrill.

The infrared side burner is the distinctive feature. “Get the perfect, steak house style, sear on steaks using the integrated sear station, infrared heat produces incredibly high temperatures.” It is also described as “the perfect place to prepare sauces and side dishes”. Of the ten, only this and the Monument pair a grill with a side burner, and only this one makes it infrared. The listing gives no temperature for it, so read “incredibly high” as marketing until the manual says more.

The build is stainless throughout. The listing calls it a “Rust resistant, durable stainless steel barbecue” with stainless steel cooking grids that are “virtually maintenance free”, and backlit knobs with white LEDs for grilling after dark. At 160 pounds listed and 66 inches wide, it is the widest cart here, so measure the patio before the gas fitter measures the line.

What to weigh. It is sold by Amazon.com, flagged as scarce stock, and ranks #190,205 overall and #23 in Natural Gas Grills. The 15-year limited warranty is the longest single figure on the page. Against the Weber Genesis E-415, it adds a stated main area, a fifth burner, an infrared side burner and three more years of warranty; it gives up the Weber’s better rank.

Pros

  • Factory natural gas, no conversion
  • Five main burners over a stated 34 3/4 x 18 in area
  • Infrared side burner, the only one here
  • 15-year limited warranty, longest stated
  • Stainless steel grates and body
  • Sold by Amazon.com

Cons

  • No BTU figure stated for any burner
  • Infrared temperature not stated
  • 66 in wide, the widest cart here
  • 160 lb listed
  • Scarce stock at capture
  • Ignition type not stated

Best for: A patio with a gas line already run, room for a 66-inch cart, and a cook who wants a separate searing station.

View on Amazon

2. Weber Spirit E-425 Gas Grill, Natural Gas, Black — Best Value

Black four-burner gas grill on a cart with side shelves, tool hooks and a closed lid

The lowest-priced factory-NG cart grill here, with four burners and a 10-year warranty, and almost no numbers.

Key Specifications

Fuel as shipped Natural gas (title)
Burners 4 (Size field: 4-Burner)
BTU per burner / total Not stated; Boost Burners claim 40% more power
Cooking area Not stated
Side burner Not stated
Grates Porcelain-enameled cast iron
Format Freestanding cart
Size 51.8 x 26.6 x 46.2 in (W x L x H)
Listed weight About 102.5 pounds (listed as 102.5325)
Ignition Snap-Jet, one burner at a time
Warranty 10-year limited
Seller Amazon.com
Best Sellers Rank #116,392 overall; #10 in Natural Gas Grills

Why We Recommend It

This is the easiest way onto natural gas on the page. The title says “Natural Gas Grill”, it is sold and shipped by Amazon.com, it was in normal stock at capture, and it is the lowest-priced of the six grills that leave the factory set for natural gas. It ranks #10 in Natural Gas Grills, second only to the Hygrill among the ten.

The power claim is relative, not absolute. “This Weber Spirit Black Gas Grill features powerful Boost Burners that unleash 40% more power in the largest Sear Zone in its class.” Forty per cent more than what is not stated, and neither is the BTU rating of the Boost Burners or of the grill as a whole. Nor is the size of the Sear Zone, or the class it is the largest in. The listing gives four burners in its Size field and no cooking area anywhere. If you are comparing heat on paper, this listing gives you a percentage of an unknown.

What it does state is about build and handling. Porcelain-enameled cast iron grates “retain heat evenly, are easy to clean, and built to last”. The cook box is cast aluminium, which “stands up to the elements and prevents rusting and peeling”. Snap-Jet ignition lets you “press and turn the knobs to ignite each burner individually”, the only one-handed ignition description on the page. Stainless Flavorizer bars sit over the burners to vaporise drippings and steer grease away.

It is the compact cart of the factory-NG group. At 51.8 inches wide and 102.5 pounds listed, it is about 14 inches narrower than the Napoleon and about 13 inches narrower than the Genesis E-415, by our arithmetic. Side rails take snap-on accessories sold separately, four tool hooks are included, and a frame kit, also sold separately, opens it up to Weber’s pizza stone, wok and Dutch oven inserts. No side burner is mentioned.

What to weigh. It ranks #116,392 overall and #10 in Natural Gas Grills. The 10-year limited warranty is stated in the first bullet and the spec table. The trade is information: you get a well-known platform with a clear natural gas configuration, and you have to go to Weber’s manual for the burner rating and grate size that the Bull and the Hygrill print on the listing. If you want a wider look at four-burner carts on propane and natural gas, our 4-burner gas grill roundup covers the category.

Pros

  • Factory natural gas, no conversion
  • Lowest-priced factory-NG cart grill here
  • 10-year limited warranty
  • Sold by Amazon.com, normal stock
  • Snap-Jet one-handed ignition
  • Narrowest factory-NG cart at 51.8 in

Cons

  • No BTU figure; 40% claim has no baseline
  • No cooking area stated
  • No side burner stated
  • Frame kit and grillware sold separately
  • Sear Zone size not stated
  • Fewer burners than the Napoleon

Best for: A first natural gas grill on an existing line, where a trusted platform and a long warranty matter more than printed numbers.

View on Amazon

3. Bull Outdoor Products Outlaw 60,000 BTU Drop-In Grill Head, Natural Gas — Best Built-In

Stainless steel drop-in grill head with a double-lined hood, a dial thermometer and four control knobs

The most completely specified natural gas grill on the page: burner count, BTU per burner, primary area and rack.

Key Specifications

Fuel as shipped Natural gas (title)
Burners 4 welded stainless steel
BTU per burner / total 15,000 each; 60,000 total
Cooking area 575 sq in primary + 176 sq in warming rack
Side burner No
Grates Solid stainless steel
Format Drop-in grill head (built-in)
Width / height 31 in wide, 22 in high
Listed weight 125 pounds
Ignition Piezo
Certifications NSF and CSA, stated
Warranty Burners 2 yr; flame tamers 3 yr; grids, frames, housings lifetime; rest 1 yr
Seller Dealsupply (scarce stock)
Best Sellers Rank #151,041 overall; #18 in Natural Gas Grills

Why We Recommend It

Every number a buyer needs is in the first three bullets. “Delivers 60,000 BTUs of total cooking power with four welded stainless steel burners producing 15,000 BTUs each.” Then “575 square inches of primary cooking space plus a 176-square-inch warming rack”. No other listing here gives burner count, per-burner BTU, total BTU, primary area and rack area together. That makes it the yardstick for everything else.

The heat density is the highest we can calculate. 60,000 BTU over 575 square inches of primary grate is about 104 BTU per square inch, by our arithmetic. The Hygrill works out at about 75 and the Flintex at about 61 over their stated totals. That is not a temperature, and burner design matters as much as rating, but per square inch of grate the Bull puts more rated input under the food than any listing that lets us check. At 15,000 BTU each, its burners carry the highest stated rating for a main grill burner here; only the MIAOSP’s 15,100 BTU rear burner is rated higher. The Lion states a bigger total, 75,000 BTU, but no burner count, so its density is the one comparison it allows: about 90 BTU per square inch over its 830, by our arithmetic.

It is built like a commercial head. The body is 304 stainless steel with “a single-piece, dual-lined hood for outstanding heat retention”, solid stainless grates, zinc control knobs, a heavy-duty thermometer and Piezo ignition. It is the only listing on the page to claim “NSF and CSA certifications”. CSA is a gas-appliance certification body, which is exactly the kind of mark a gas fitter or inspector will look for.

It is a head, not a grill you can wheel out. “Drop-In Grill Head” means it needs a non-combustible island or counter built to receive it, and the listing does not give a cutout size. The spec table gives 31 inches wide and 22 inches high; its 9.5 inch length field cannot be the depth of a grill head with a 575 square inch grate, so we leave it aside. Get the cutout from Bull’s installation guide before the masonry goes in, not after.

The warranty is itemised rather than headline. Cast iron porcelain-coated burners two years, stainless flame tamers three years, stainless grids, frames and housings lifetime, everything else one year. Oddly, the burner line describes cast iron burners while the bullets describe welded stainless ones; ask which applies.

What to weigh. It is sold by Dealsupply, flagged as scarce stock, and ranks #151,041 overall and #18 in Natural Gas Grills. With the Lion, it is one of the two most premium items in the set. For an outdoor kitchen on natural gas, it is the listing that tells you most before you buy.

Pros

  • Factory natural gas, no conversion
  • 15,000 BTU per burner, 60,000 total, stated
  • 575 sq in primary plus 176 sq in rack
  • NSF and CSA stated
  • Solid stainless grates, dual-lined hood
  • Lifetime cover on grids, frames and housings

Cons

  • Needs a built island; cutout not stated
  • No side burner
  • Burner warranty only 2 years
  • Warranty and bullets disagree on burner material
  • Among the two most premium items here
  • Third-party seller, scarce stock

Best for: An outdoor kitchen on a natural gas line, where the builder needs real numbers before cutting the counter.

View on Amazon

4. Weber Genesis E-415 Gas Grill, Natural Gas, Black — Best-Ranked Cart

Black gas grill on a wide cart with side tables and a warming rack visible under the raised lid

The clearest natural gas warning on the page, the best-ranked grill in the set, and no BTU or area at all.

Key Specifications

Fuel as shipped Natural gas only, stated
Burners Not stated in listing
BTU per burner / total Not stated
Cooking area Not stated (“large cooking surface”)
Side burner Not stated; side tables
Grates Porcelain-enameled cast iron
Format Freestanding cart
Size 64.5 x 27 x 48.1 in (W x L x H)
Listed weight Not stated
Warranty 12 Year Limited Warranty
Seller Amazon.com (scarce stock)
Best Sellers Rank #49,924 overall; #26 in Natural Gas Grills

Why We Recommend It

This listing is the only one that tells you to check your gas line first. “Natural gas grill is factory built to operate using natural gas only. Natural gas is delivered by your local utility through an underground pipeline system. Confirm that the branch supply line from the house to the grill is properly installed before using the grill prior to purchase.” It closes with “Confirm you would like a natural gas grill and not a liquid propane grill.” No other listing here puts the supply line in front of the buyer so plainly, and it is the right order of operations: line first, grill second.

Natural gas only means no tank fallback. The word “only” matters. This grill is not described as convertible, so if the line is not in, the grill does not work. That makes it the cleanest choice for a buyer committed to natural gas and the wrong one for anyone who might move to a home without a line. The convertibles at the bottom of this page are the hedge, with the caveats we set out for each.

It prints almost nothing you can measure. No burner count in the listing, no BTU figure, no cooking area beyond “a large cooking surface with enough space to grill an entire meal”, and no weight. The model name suggests a four-burner grill in Weber’s naming, but the listing does not say so and we do not count it. What it describes are PureBlu burners with a “unique, tapered design” and raised flame openings that “keep food debris falling away, minimizing clogs and corrosion”, porcelain-enameled cast iron grates, Flavorizer bars, a pull-out grease tray, a warming rack and side tables.

Popularity is its strongest data point. At #49,924 overall it is the best-ranked product on the page. In Natural Gas Grills it sits at #26. The 12-year limited warranty is second only to the Napoleon’s 15.

What to weigh. It is sold by Amazon.com, flagged as scarce stock. At 64.5 inches wide it is nearly as wide as the Napoleon. Against the Spirit E-425 it steps up to the Genesis platform, PureBlu burners and two more years of warranty; against the Napoleon it gives up a stated cooking area, a side burner and three years of warranty for a better rank. Grillware including a pizza stone, griddle and sear grate fits via a frame kit, sold separately.

Pros

  • Factory natural gas only, clearly stated
  • Tells buyers to confirm the supply line first
  • Best overall rank on the page
  • 12-year limited warranty
  • PureBlu burners resist clogs
  • Sold by Amazon.com

Cons

  • No BTU figure
  • No cooking area or burner count in the listing
  • No weight stated
  • No side burner stated
  • Cannot fall back to a propane tank
  • Scarce stock at capture

Best for: A committed natural gas household that wants the best-selling cart grill here and will read the manual for the numbers.

View on Amazon

5. Weber Genesis E-315 Gas Grill, Natural Gas, Black — Smaller Genesis

Black gas grill with a cast lid, side tables and an open cart base on a stone patio

The Genesis platform in a smaller listing, with a warranty field that does not match its sibling.

Key Specifications

Fuel as shipped Natural gas (title)
Burners Not stated in listing
BTU per burner / total Not stated
Cooking area Not stated
Side burner Not stated; side tables
Grates Porcelain-enameled cast iron
Format Freestanding cart
Listed size 30.3 x 36.1 x 25.98 in (W x L x H)
Listed weight About 171 pounds (listed as 170.99934889768)
Warranty 1 year (spec field)
Seller PLEXSUPPLY. (scarce stock)
Best Sellers Rank #114,597 overall; #56 in Natural Gas Grills

Why We Recommend It

It shares almost every bullet with the E-415. PureBlu burners with a tapered design and raised flame openings, porcelain-enameled cast iron grates, Flavorizer bars, a pull-out grease tray under the cookbox, a warming rack, side tables and frame-kit grillware compatibility. The title says “Natural Gas Grill”. It does not repeat the E-415’s natural-gas-only warning, but nothing suggests it converts.

It is just as silent on numbers. No BTU, no cooking area, no burner count in the listing. The name suggests three burners in Weber’s scheme, but the listing does not say so. Between the two Genesis grills, a buyer has no listed figure to say how much more grill the E-415 is.

Two of its fields look off. The listed size is 30.3 inches wide, 36.1 inches long and 25.98 inches high. A grill with side tables and a warming rack at that height would be unusually low, so these may be packed dimensions; the listing does not say. The weight field reads 170.99934889768 pounds, about 171, which is heavier than the Napoleon’s 160 and may include packaging. Treat both as unconfirmed.

The warranty field says 1 year. Its sibling E-415 lists a 12 Year Limited Warranty, sold by Amazon.com. The E-315 is sold by a third party, PLEXSUPPLY., and its warranty field says “1 year”. That may be a data-entry difference or a seller-specific term, and we cannot tell which from the listing. Before buying, ask the seller whether Weber’s manufacturer warranty applies to this sale.

What to weigh. It ranks #114,597 overall and #56 in Natural Gas Grills, the weakest category rank of the seven factory-NG grills. It was flagged as scarce stock. It suits a buyer who wants a Genesis on natural gas with a smaller footprint than the E-415, provided the warranty question gets a clear answer.

Pros

  • Factory natural gas
  • Genesis PureBlu burners and cast iron grates
  • Pull-out grease tray, warming rack
  • Side tables
  • Frame-kit grillware compatible
  • Smaller Genesis option

Cons

  • No BTU, area or burner count stated
  • Warranty field says 1 year
  • Size and weight fields look like packed figures
  • Third-party seller
  • Weakest category rank of the factory-NG seven
  • Scarce stock at capture

Best for: A buyer who wants the Genesis platform on natural gas in a smaller size and will confirm the warranty with the seller.

View on Amazon

6. Hygrill STD Series 3-Burner Built-In Grill, 25-Inch Natural Gas — Best Compact Built-In

Stainless steel built-in grill head set into an outdoor countertop with three control knobs

The best category rank here, factory natural gas, with BTU, area and cutout all printed.

Key Specifications

Fuel as shipped Natural gas (title; part X002-NG-3-SS)
Burners 3 stainless steel tube burners
BTU per burner / total 42,000 total; about 14,000 each by our arithmetic
Cooking area 558 sq in total
Side burner No
Build 304 stainless steel
Format Built-in
Cutout 23 1/4 W x 21 1/4 D x 8 1/2 H in
Unit size 26.5 x 21.5 x 20.5 in (W x L x H)
Hookup parts Included, stated
Warranty Not stated
Seller Stanbroil Outdoor LTD (scarce stock)
Best Sellers Rank #87,268 overall; #9 in Natural Gas Grills

Why We Recommend It

It is the best-ranked grill in Natural Gas Grills on this page. #9 in the category, ahead of the Weber Spirit at #10, and #87,268 overall. The title and part number both say natural gas: “25 Inch Natural Gas Grill” and X002-NG-3-SS. It is sold by Stanbroil Outdoor LTD, the brand behind Hygrill, and was flagged as scarce stock.

It prints the three numbers an island builder needs. “Total Cooking Surface: 558sq inches; Cut out: 23 1/4″W x 21 1/4″D x 8 1/2″H; Cooking Power: 42,000 BTU.” The Bull gives more about burners but no cutout; the Hygrill gives the cutout in the same breath as the heat. Three stainless tube burners share 42,000 BTU, about 14,000 each if equal, by our arithmetic. Over 558 square inches, that is about 75 BTU per square inch, ours again, though the listing does not split the 558 into grate and rack.

The hookup claim needs reading carefully. “All the accessories to hook the built in grill to your gas source are included”, and “Just hook it up to the gas line and place it in the outdoor counter top.” Having the fittings in the box is useful. “Just hook it up” is not advice to follow yourself: the connection to a house natural gas line is work for a licensed gas fitter, who will also check that the supplied fittings suit your line and local code.

It is the smallest grill head here. At 26.5 inches wide, it is the compact option for an island where a 31 to 34 inch head will not fit. It arrives “completely assembled except for the cooking grates”. The body is 304 stainless, the lid is steel, and the listing says nothing about grate material, ignition, thermometer or warranty.

What to weigh. Against the Bull, it gives up a burner, 18,000 BTU of stated total and the NSF and CSA marks, and gains a printed cutout, a better rank and a smaller footprint. The missing warranty is the gap to close before buying.

Pros

  • Factory natural gas
  • #9 in Natural Gas Grills, best category rank here
  • 42,000 BTU and 558 sq in stated
  • Cutout dimensions printed
  • Hookup accessories included
  • Arrives assembled except grates

Cons

  • Warranty not stated
  • Grate material not stated
  • Ignition not stated
  • Area not split into grate and rack
  • Three burners only
  • Scarce stock at capture

Best for: A smaller outdoor kitchen island on natural gas, where the builder needs the cutout and heat figures up front.

View on Amazon

7. Lion Premium Grills L75623 32-Inch Natural Gas Grill — Largest Built-In

Polished stainless steel grill head with a double-walled hood and solid stainless cooking grates

The biggest stated numbers on the page, 75,000 BTU over 830 square inches, and very little else.

Key Specifications

Fuel as shipped Natural gas (title and bullet)
Burners Not stated
BTU per burner / total Per burner not stated; 75,000 total
Cooking area 830 sq in (not split into grate and rack)
Side burner Not stated
Grates Solid stainless steel
Hood Double-layer seamless welded stainless steel
Format Grill head for built-in use (32 in wide)
Dimensions Top view 31 W x 24 1/4 D in; front view 32 W x 21 1/2 H in
Cutout Not stated
Listed weight 170 pounds
Warranty “See Description” (no description supplied)
Seller Dealsupply
Best Sellers Rank #275,219 overall; #40 in Natural Gas Grills

Why We Recommend It

It is factory natural gas, and it states the biggest heat figure here. The title says “32″ Natural Gas Grill” and the second bullet says “Natural Gas powered grill”, with no mention of propane or conversion. The fourth bullet gives “75,000 total BTUs”, the highest total on the page, ahead of the MIAOSP’s 63,100 by our arithmetic and the Bull’s 60,000.

It also states the largest cooking area. “830 sq. inches of cooking surface” beats the Bull’s 751 square inches of grate and rack combined and the Monument’s 700, by our arithmetic. Spread over that area, 75,000 BTU is about 90 BTU per square inch, ours again, a little under the Bull’s 104 on its primary grate. The listing does not split the 830 into grate and warming rack, so the true primary-grate density is probably higher than that figure; we cannot say by how much.

What it leaves out matters as much. No burner count, so no per-burner rating. No cutout, only a top view of 31 by 24 1/4 inches and a front view of 32 by 21 1/2 inches. No ignition type, no thermometer, no side burner. The warranty field reads “See Description”, and no description came with the listing. One bullet also carries text that does not belong to a grill: “Overall thorn remover length: 2 inches, overall handle length: 4 and 1/2 inches”, which looks like copy from another product. None of that makes the grill worse; it makes the listing harder to trust as a full specification.

The build is described in stainless terms. “Premium solid stainless steel cooking grates” and a “Double layer seamless welded stainless steel smoker head with polished edges”, a double-walled hood like the Bull’s. The dimensions and the word head describe a unit for a built-in island rather than a cart, though the listing never says built-in. At 170 pounds listed, it needs a solid, non-combustible counter and two people to set it.

What to weigh. It is sold by Dealsupply, the same seller as the Bull, was in normal stock at capture, and ranks #275,219 overall and #40 in Natural Gas Grills, the weakest overall rank on the page. It is the most premium item in the set. It suits an island builder who wants the most stated BTU and area on natural gas and will get the burner count, cutout and warranty from Lion before building.

Pros

  • Factory natural gas, no conversion
  • 75,000 BTU, highest stated total here
  • 830 sq in, largest stated area here
  • Solid stainless grates
  • Double-layer welded stainless hood
  • Normal stock at capture

Cons

  • Burner count not stated
  • Cutout not stated
  • Warranty points to a description that is missing
  • Stray copy from another product in a bullet
  • Weakest overall rank on the page
  • Most premium item in the set

Best for: An outdoor kitchen on natural gas that wants the largest stated grill and will confirm the install details with Lion.

View on Amazon

8. Flintex Built-In Natural Gas Outdoor Kitchen Grill, 650 sq in, RUSDI4 — Most Included

Built-in stainless steel grill head with a porcelain-coated firebox, cast iron grates and a griddle plate

Sold as natural gas, shipped with propane parts, and the NG connector comes in a separate box.

Key Specifications

Fuel as shipped Propane hose and regulator included; NG connector shipped separately
Burners 4 (Size field)
BTU per burner / total 40,000 total; about 10,000 each by our arithmetic
Cooking area 650 sq in (title); 653 sq in (bullet)
Grate sizes 30 x 16 in main; 29 x 7 in warming rack
Side burner No; 14.5 x 15.7 in griddle included
Format Built-in, 8-in mounting flange
Cutout 31.1 to 33.6 in wide, 16.7 in deep, 11.5 in high
Listed weight 107.4 pounds
Warranty 2-Year Limited Warranty
Seller Flintex USA
Best Sellers Rank #107,413 overall; #163 in Propane Grills

Why We Recommend It

The title says natural gas; the box says propane first. The title is “Built in Natural Gas Outdoor Kitchen Grill”. The fifth bullet says “This versatile grill works with both propane and natural gas”, that “A propane hose and regulator are included for immediate use”, and that “the natural gas connector is SHIPPED separately”. We read that as a grill set up for propane out of the box, with the natural gas connector included but arriving in its own shipment. The listing does not say whether orifices change, so ask Flintex before ordering what the switch involves, and have a professional do it per the manual.

Its area figures do not agree, three ways. The title says 650 square inches, the bullet says “Massive 653 sq.in. Cooking Area”, and the same bullet gives a 30 by 16 inch main grate and a 29 by 7 inch warming rack. Those two work out at 480 and 203 square inches, 683 in all, by our arithmetic, which matches neither stated total. The griddle, 14.5 by 15.7 inches, sits on the grate and does not add area. Plan around the 480 square inch main grate, which is the figure you can check with a tape.

The heat is the most modest per burner among the full-size grills. “Powerful 40,000 BTU Stainless Steel Burners” across four burners is about 10,000 each, by our arithmetic. Over the 480 square inch main grate that is about 83 BTU per square inch, ours again; over the stated 653, about 61. The firebox is porcelain-enameled, the grates porcelain-enameled cast iron, and V-shaped grease channels are claimed to eliminate flare-ups.

The installation details are the best on the page. “it fits cutout widths from 31.1″ to 33.6″, with a 16.7″ depth and 11.5″ height. The 8-inch mounting flange ensures a secure, flush fit”. A width range gives the island builder tolerance. The listing then calls setup “smooth and hassle-free for any DIY enthusiast”. Setting the head into the counter may be; connecting it to a gas line is not, and that part belongs to a licensed fitter.

What to weigh. It is sold by Flintex USA, ranks #107,413 overall and #163 in Propane Grills, which is where Amazon files it despite the title. The 2-year limited warranty is stated. Pre-drilled holes take a rotisserie kit, not included. It suits a buyer who wants a griddle in the box and a forgiving cutout, and who will confirm the natural gas parts before the fitter arrives. Our grill griddle combo guide covers grills that build the griddle in.

Pros

  • Cutout width range 31.1 to 33.6 in
  • Griddle and warming rack included
  • Propane parts in box, NG connector shipped separately
  • Porcelain firebox, cast iron grates
  • Rotisserie-ready holes
  • 2-year limited warranty stated

Cons

  • Not set for natural gas out of the box
  • Area stated as 650 and 653; grates add to 683
  • About 10,000 BTU per burner by our arithmetic
  • Filed in Propane Grills
  • Calls setup DIY-friendly
  • Rotisserie kit not included

Best for: An island builder who wants installation tolerance and a griddle included, and will confirm the NG parts with Flintex first.

View on Amazon

9. 32-Inch Built-In Propane, Charcoal and Natural Gas Triple Combo Grill (MIAOSP) — Three Fuels

Wide stainless steel built-in grill head with five burner knobs and wavy stainless cooking grates

The second-highest stated BTU total here, propane by default, with the natural gas kit in the box.

Key Specifications

Fuel as shipped Propane (LPG) by default; NG conversion kit included
Burners 4 at 12,000 BTU + 1 rear at 15,100 BTU
BTU total 63,100 by our arithmetic
Cooking area 687 sq in total
Side burner No
Grates 8mm wavy stainless steel
Other fuels Two charcoal trays included
Format Built-in
Cutout Not stated
Unit size / weight 31.8 x 22.3 x 21.3 in; 119 pounds
Warranty “1” (unit not stated)
Seller MIAOSP
Best Sellers Rank #97,998 overall; #260 in Propane Grills

Why We Recommend It

It is the only grill with the natural gas kit in the box. “5-burner propane grill comes configured for LPG use by default, and includes a natural gas conversion kit along with two charcoal trays.” That is the clearest conversion statement among the four convertibles. The listing calls the switch easy; we would call it a job for a professional, done exactly as the manual describes with the supplied kit, and then leak-checked before the first light.

Its BTU total is second only to the Lion’s. “Designed with 4 12,000 BTU burner & a 15,100 BTU Rear Burner”. That is 48,000 BTU on the main burners and 63,100 in all, by our arithmetic. Over its 687 square inches of total cooking space, the full total is about 92 BTU per square inch; on the main burners alone, about 70, ours again. A rear burner usually serves a rotisserie, but the listing does not say so and no rotisserie is mentioned. Note that these are propane ratings in the listing; the listing does not say whether the figures change after conversion.

It is three grills on paper. Propane, natural gas and charcoal, via two charcoal trays. The listing’s title stretches that to “Triple Combo”. If you want charcoal and gas in one place, it is the only option here; for a dedicated smoke setup, our smoker grill combo roundup goes further.

The listing leaves out installation basics. No cutout dimension, only the unit size, 31.8 by 22.3 by 21.3 inches. The brand field reads XLB-TYNFD, the seller MIAOSP. The warranty field says “1” with no unit. The construction is 304 stainless steel with 8mm wavy stainless grates and removable grease trays.

What to weigh. It ranks #97,998 overall and #260 in Propane Grills. Nothing about the brand gives the support record that Weber, Napoleon or Bull offer, so the gaps in the listing count for more. It suits a buyer who wants high stated BTU and fuel flexibility, and who can get a cutout dimension from the seller before the island is built.

Pros

  • NG conversion kit included
  • Second-highest stated BTU total, 63,100 by our arithmetic
  • Charcoal trays included
  • 687 sq in total cooking area
  • 8mm stainless grates
  • Removable grease trays

Cons

  • Ships for propane; conversion needs a professional
  • Cutout not stated
  • Warranty field just says 1
  • BTU after conversion not stated
  • Area not split into grate and rack
  • Filed in Propane Grills

Best for: A buyer who wants propane, natural gas and charcoal options in one built-in head and will have the kit fitted professionally.

View on Amazon

10. Monument Grills Convertible 4-Burner Natural Gas Cabinet Grill, 41847NG — Convertible Cart

Stainless steel cabinet-style gas grill with a viewing window in the lid and a side burner

The only convertible on a cart, with a side burner, and a kit you must buy separately.

Key Specifications

Fuel as shipped Dual-fuel; NG needs kit 97352, sold separately (bullet)
Model 41847NG
Burners 4 main 304 stainless + 1 side burner
BTU total 60,000 (main and side together)
Cooking area 700 sq in total: 510 primary + 190 warming rack
Side burner Yes
Grates Porcelain-coated cast iron
Format Freestanding cabinet
Size 54 x 19 x 46 in (W x L x H)
Warranty Grill 2 yr; burners 8 yr; electrical 1 yr
Seller Monument Grills
Best Sellers Rank #181,819 overall; #377 in Propane Grills

Why We Recommend It

Its listing argues with itself about fuel. The title calls it a “Convertible 4-Burner Natural Gas Grill” and the model field reads 41847NG. The first bullet then says “This grill is designed to operate with both propane and natural gas. Simply purchase the Monument Grills Conversion Kit model 97352(sold separately) to easily switch to natural gas.” Both cannot be the whole story. Either it ships set for natural gas and the bullet is generic, or it ships for propane and the title overstates. Ask Monument which before ordering, and budget for kit 97352 and a professional to fit it if the bullet is right.

The BTU total includes the side burner. “Four main 304 stainless steel burners and one side burner with 60,000 BTU”. So 60,000 is the whole appliance, not the grill. How it splits is not stated, which is why this grill’s figure cannot be set against the Bull’s 60,000 on main burners alone.

The area figure is properly split. “700 square inches of total cooking area offers plenty of grilling space; 510 square inches of primary cooking area and 190 square inches of warming rack area”. Only it and the Bull give primary and rack separately. 510 square inches of primary grate is smaller than the Bull’s 575 and the Napoleon’s 625.5 by our arithmetic, but larger than the Flintex’s 480.

It is the only cart among the convertibles. A stainless cabinet base, 54 inches wide and 46 inches high, with a “Built-In Clearview Lid”, the only viewing window on the page, and porcelain-coated cast iron grates. The title’s “with Cooking Plate(2 items)” and the number-of-items field of 2 suggest a plate ships with it; the bullets do not describe it.

What to weigh. It is sold by Monument Grills, ranks #181,819 overall and #377 in Propane Grills, the weakest category rank here. The warranty is split: 2 years on the grill, 8 years on the stainless burners and 1 year on electrical parts. It suits a buyer who wants a cart with a side burner that can follow them between a tank and a line, once the kit question is settled.

Pros

  • Freestanding cart that converts to natural gas
  • Side burner included
  • 510 sq in primary plus 190 sq in rack, stated
  • Viewing window in the lid
  • 8-year burner warranty
  • Porcelain cast iron grates

Cons

  • Title and model say NG; bullet says buy kit 97352
  • 60,000 BTU includes the side burner
  • Grill body warranty only 2 years
  • Cooking plate not described
  • Weakest category rank here
  • Weight not stated

Best for: A cart buyer who may move between propane and natural gas and wants a side burner, after confirming the kit with Monument.

View on Amazon

Seven Ready for the Line, Three That Convert

How a grill leaves the factory decides what happens on installation day. A factory natural gas grill needs a gas fitter to run or confirm the supply line and connect it. A convertible needs that plus a conversion: new orifices or nozzles, often a different regulator or connector, and sometimes valve adjustments, all done to the manual. Here is how each listing describes its starting point.

Grill Fuel as shipped What natural gas needs Amazon category
Napoleon Rogue PRO 625 Natural gas Line and connection only #23 in Natural Gas Grills
Weber Spirit E-425 Natural gas Line and connection only #10 in Natural Gas Grills
Bull Outlaw Drop-In Natural gas Line, island and connection #18 in Natural Gas Grills
Weber Genesis E-415 Natural gas only Line and connection only #26 in Natural Gas Grills
Weber Genesis E-315 Natural gas Line and connection only #56 in Natural Gas Grills
Hygrill 25-Inch Natural gas Line, island; hookup parts included #9 in Natural Gas Grills
Lion L75623 Natural gas Line, island and connection #40 in Natural Gas Grills
Flintex RUSDI4 Propane hose and regulator NG connector, shipped separately #163 in Propane Grills
MIAOSP Triple Combo Propane by default NG conversion kit, included #260 in Propane Grills
Monument 41847NG Dual-fuel; unclear Kit 97352, sold separately #377 in Propane Grills

The count is seven, two and one. Seven ship ready for natural gas. Two ship with what they need to convert: the MIAOSP with a full kit, the Flintex with a connector in a separate shipment. One, the Monument, says the kit is sold separately, even though its title and model number say natural gas.

The categories follow the fuel. Every factory-NG grill sits in Natural Gas Grills; every convertible sits elsewhere. If you browse only the natural gas category, you will only see grills that are ready for the line, which is arguably the safest way to shop. If you want the flexibility of a convertible, you will have to look in Propane Grills and read the conversion terms yourself.

Why we favour factory natural gas. A conversion is not hard engineering, but it is gas work, and every extra step is one more place for an error. A factory-NG grill has been built, tested and certified on the gas it will burn. A converted grill is only as good as the kit and the person who fitted it. That is why all three of our picks ship ready for the line, and why the convertibles carry a caution in every card.

Chicken drumsticks on a round grill grate beside tongs
Four of the ten, all big-name grills, print no BTU figure for the grate you are cooking on.

The Big Names Print the Fewest Numbers

A gas grill’s rated input in BTU per hour is the closest thing a listing has to a heat figure, and cooking area tells you what the heat is spread over. Here is every figure the ten listings give, and what they work out to. The last column is our arithmetic, rated BTU divided by stated area, and it is a rough way to compare density of heat, not a temperature.

Grill Burners BTU per burner BTU total Area stated BTU per sq in (ours)
Lion L75623 Not stated Not stated 75,000 830 total About 90 on total
Bull Outlaw 4 15,000 60,000 575 primary + 176 rack About 104 on primary
MIAOSP 4 + rear 12,000; rear 15,100 63,100 (ours) 687 total About 92 on total
Monument 4 + side Not stated 60,000 incl. side 510 primary + 190 rack Not comparable
Hygrill 3 About 14,000 (ours) 42,000 558 total About 75 on total
Flintex 4 About 10,000 (ours) 40,000 650 or 653; grates 480 + 203 About 61 on 653; 83 on main grate
Napoleon 5 + infrared side Not stated Not stated 34 3/4 x 18 in main —
Weber Spirit E-425 4 Not stated Not stated Not stated —
Weber Genesis E-415 Not stated Not stated Not stated Not stated —
Weber Genesis E-315 Not stated Not stated Not stated Not stated —

Six give a BTU total, four give nothing. The silent four are the three Webers and the Napoleon, the four best-known brands in the set. The Webers also print no cooking area, and two of them print no burner count. The Napoleon at least gives grate dimensions. The listings that print the most numbers are the Bull, the Hygrill and, with caveats, the MIAOSP and Flintex. The Lion prints the two biggest figures, 75,000 BTU and 830 square inches, and almost nothing around them.

BTU is not the whole story, but it is not nothing. A higher rated input does not guarantee a hotter grate: burner shape, hood design, grate mass and how well the lid holds heat all matter, and Weber leans on burner design rather than numbers. But BTU is also what a gas fitter needs. The supply line has to be sized for the total input of every appliance on it, grill plus side burner plus anything else. If the listing does not say, get the figure from the manual or the maker before the line is planned.

Natural gas ratings are usually listed per appliance. A grill built for natural gas carries its own rating for that gas. The MIAOSP and Flintex print one set of BTU figures without saying which gas they apply to, and the MIAOSP calls itself a propane grill. Ask whether the figure holds after conversion.

Freestanding Cart or Built-In Head

A natural gas grill is tied to a fixed point where the line comes out, so the format question is sharper than with a propane grill. A cart can be rolled a little way on a flexible hose for cleaning, within the length and type the fitter installs; a built-in head is set into the island for good.

Grill Format Width Cutout stated Side burner
Napoleon Rogue PRO 625 Cart 66 in — Yes, infrared
Weber Genesis E-415 Cart 64.5 in — Not stated
Monument 41847NG Cabinet cart 54 in — Yes
Weber Spirit E-425 Cart 51.8 in — Not stated
Weber Genesis E-315 Cart 30.3 in listed (likely packed) — Not stated
Lion L75623 Grill head 32 in Not stated Not stated
Flintex RUSDI4 Built-in 36 in 31.1–33.6 x 16.7 x 11.5 in No
MIAOSP Triple Combo Built-in 31.8 in Not stated No
Bull Outlaw Drop-in head 31 in Not stated No
Hygrill 25-Inch Built-in 26.5 in 23 1/4 x 21 1/4 x 8 1/2 in No

The split is five and five. Four carts and a cabinet; five built-in heads. Of the carts, two have side burners, the Napoleon and the Monument. None of the five built-in heads states one, so an outdoor kitchen that wants a pan station will need a separate built-in side burner on the same line, sized into the fitter’s total.

Only two built-ins print a cutout. The Hygrill and the Flintex. The Bull, the MIAOSP and the Lion do not; the Lion gives outside dimensions only. For a masonry island, the cutout is not a detail to discover on delivery day. Get the installation sheet from the maker, build to it, and include the clearance and ventilation it requires: built-in grills need ventilation openings in the island so that leaked gas cannot collect in the cavity below.

Carts are the easier first step. If you are not building an outdoor kitchen, the Napoleon, the Spirit and the Genesis E-415 give you factory natural gas on wheels. Placement still matters: the fitter will set the outlet where the grill can stand clear of walls, windows, eaves and railings by the distances the manual specifies.

Skewers of meat and vegetables cooking on a grill grate
Only two of the five built-ins print a cutout, so get the installation sheet before the island goes up.

The Gas Line Is a Fitter’s Job, Not a Weekend Project

Every listing here sells convenience: no tanks to swap, no running out mid-cook. That convenience comes from a permanent gas connection to your house, and it carries rules that a propane grill never asked of you.

  • Use a licensed gas fitter for the line and the hookup. Running a branch line, fitting a shut-off valve and connecting the grill is regulated gas work in most places, usually with a permit and an inspection. Do not do it yourself, whatever a listing says about “just hook it up” or “any DIY enthusiast”.
  • Never convert between propane and natural gas on your own. Convert only if the manual allows it, only with the manufacturer’s kit for that model, and only by a qualified professional. A grill run on the wrong orifices can produce dangerous flames or incomplete combustion.
  • Outdoors only, with clearance. Never use a gas grill in a garage, a porch with walls and a roof, a tent or any enclosed space. Keep it clear of walls, fences, railings, windows and overhangs by at least the distances in the manual.
  • Carbon monoxide is the hidden risk. Any gas flame produces carbon monoxide, which you cannot see or smell. Outdoors in open air it disperses; in an enclosed or semi-enclosed space it can build to dangerous levels. Never bring a grill inside to keep cooking out of the rain.
  • Leak-check with soapy water. After installation, after any conversion and at the start of each season, brush soapy water on every joint with the gas on and the burners off. Growing bubbles mean a leak: shut the gas off and call the fitter. Never use a flame to look for a leak.
  • If you smell gas, stop. Turn off the burners and the supply valve, keep flames away, and call the fitter or the gas utility.

The cost of doing it right is part of the purchase. We do not quote figures, but plan for the fitter, any permit and, for a built-in, the island, before you choose the grill. A factory-NG grill keeps that bill to the line and the connection; a convertible adds the conversion.

Best Alternatives

Alternative Why Consider It Better For Main Trade-Off
A propane cart grill No gas line, no fitter for the fuel, can move anywhere Renters and anyone without an outdoor gas outlet Tanks to buy, store and swap
A 4-burner gas grill on propane The largest choice of carts, many with NG versions Buyers who may add a line later Check that an NG version or kit exists
A smoker grill combo Low-and-slow smoke plus grilling Barbecue cooks who want wood or charcoal flavour Not natural gas; fuel and fire to manage
A grill griddle combo Flat-top and grates on one appliance Breakfasts, smash burgers and stir-fries outdoors Often propane only; check for NG

If a gas line is not on the cards, our gas grill under 400 guide covers lower-cost propane carts, and the 4-burner gas grill roundup looks at the most common grill size, many of which come in propane and natural gas versions. For wood and charcoal flavour alongside gas, the smoker grill combo roundup is the place to start.

What the Step Up Buys

Among the factory-NG grills, moving up the range buys three things, and BTU is not one you can read off the listings.

  • From the Spirit E-425 to the Genesis E-415: a wider cart, 64.5 against 51.8 inches, PureBlu burners described as resisting clogs and corrosion, a warming rack and side tables, and a 12-year warranty against 10. No listed numbers show more grill area or heat.
  • From the Genesis to the Napoleon Rogue PRO 625: five stated main burners, a stated 34 3/4 by 18 inch main area, an infrared side burner, stainless grates and body, backlit knobs, and a 15-year warranty.
  • From a cart to the Bull built-in: commercial-style construction, 304 stainless with a dual-lined hood, solid stainless grates, stated NSF and CSA certification, and the most complete set of numbers on the page. It also brings the cost of an island.
  • From the Hygrill to the Bull: a fourth burner, 60,000 against 42,000 BTU stated, and certification marks, in a wider head.
  • From the Bull to the Lion: 75,000 BTU and 830 square inches stated, against 60,000 and 751 including the rack, but no burner count, certification or itemised warranty on the listing.

Among the convertibles, the step up is mostly in what comes in the box: a full kit on the MIAOSP, a connector on the Flintex, and nothing on the Monument.

Several burger patties browning on the grates of a gas grill with the lid open
A natural gas grill stays where the line ends; choose a spot clear of walls and railings first.

What to Check Before You Buy

Confirm You Have a Natural Gas Line, or Can Get One

A natural gas grill needs a supply from the house, normally a dedicated branch line ending in a shut-off valve and a quick-disconnect outlet on the patio. If you do not have one, a licensed gas fitter can tell you where it can go, whether your meter and existing pipes can carry the extra load, and what permit is needed. Weber’s E-415 listing puts it first, and so should you: confirm the line before you buy the grill.

Read Exactly How the Grill Ships

“Natural gas grill” in a title does not always mean natural gas in the box. Of the three convertibles here, two have natural gas in the title and still ship for propane or need parts. Look for the words “factory built for natural gas”, “default”, “included” and “sold separately”, and ask the seller if the listing is unclear.

Get the Total BTU for the Fitter

The supply line is sized for the total rated input of everything on it. Add the grill and any side burner. If the listing does not give a figure, as with all three Webers and the Napoleon, get it from the manual or the maker before the line is designed.

Check the Cooking Area Split

Primary grate and warming rack are different spaces. Only the Bull and the Monument split them on the listing. Where a single total is given, assume part of it is the rack, and where the title and bullets disagree, as on the Flintex, measure the main grate from the stated dimensions.

Measure for Clearance Before Choosing the Spot

A natural gas grill stays where the line ends. Choose a spot in open air, away from walls, windows, fences, railings and overhangs by the distances in the manual, with level, non-combustible footing. Plan for at least the grill’s width plus side shelves: the carts here run from 51.8 to 66 inches wide.

Get the Cutout for Any Built-In

For a built-in head, the island is built to the grill, not the other way round. The Hygrill and the Flintex print a cutout; the Bull, the MIAOSP and the Lion do not. Get the installation sheet, including ventilation requirements for the island, before any masonry is laid.

Plan for Cleaning and Upkeep

Natural gas grills are permanent fixtures, so maintenance happens where they stand. A grease tray that slides out, stated on the Webers, and grates you can scrub matter more when the grill cannot be wheeled to the hose. A good brush helps; our grill brush roundup covers types that suit cast iron and stainless grates, and the grill gloves guide covers hand protection for hot grates and lids.

Common Mistakes

  • Buying the grill before the gas line. Weber’s E-415 listing tells you to confirm the branch line first; without one, a natural-gas-only grill does nothing.
  • Connecting the line yourself. Hooking a grill to a house gas line is licensed work; two listings here suggest DIY setup, and neither changes that.
  • Assuming a natural gas title means natural gas in the box. The Flintex and the Monument both say natural gas in the title and still need parts to run on it.
  • Converting without the right kit and a professional. The Monument needs kit 97352, sold separately; the wrong orifices can mean unsafe flames and carbon monoxide.
  • Comparing BTU totals that include a side burner. The Monument’s 60,000 BTU covers its side burner; the Bull’s 60,000 is four grill burners alone.
  • Building the island before you have the cutout. Only two of the five built-ins here print one; the Bull, the MIAOSP and the Lion leave you to ask.
  • Placing the outlet too close to the house. A natural gas grill stays where the line ends, so a spot against a wall or railing is a permanent mistake.
  • Skipping the soapy-water leak check. Check every joint after installation, after any conversion and every season, with the burners off.

Who Should Buy Which

Buy the Napoleon Rogue PRO 625 if you want the most complete cart grill on natural gas. Factory natural gas, five main burners over a stated 34 3/4 by 18 inch area, an infrared side burner and a 15-year limited warranty. Accept that it prints no BTU figure and needs 66 inches of patio.

Buy the Weber Spirit E-425 if you want the simplest route onto natural gas. Factory natural gas, four burners, a 10-year warranty, sold by Amazon.com and the lowest-priced factory-NG cart here. Accept that BTU, cooking area and side burner are all unstated.

Buy the Bull Outlaw if you are building an outdoor kitchen and want numbers. Four 15,000 BTU burners, 575 square inches of primary space plus a 176 square inch rack, and NSF and CSA marks. Accept the premium, the island and the missing cutout.

Buy the Weber Genesis E-415 if you want the best-ranked grill here and a natural-gas-only build. A 12-year warranty and PureBlu burners. Accept that the listing gives no BTU, area or burner count.

Buy the Weber Genesis E-315 if you want a smaller Genesis on natural gas. Accept a third-party seller and a warranty field reading 1 year, and confirm it before you pay.

Buy the Hygrill 25-Inch if your island is small. Factory natural gas, 42,000 BTU, 558 square inches, a printed cutout and hookup parts in the box, at #9 in Natural Gas Grills. Accept that no warranty is stated.

Buy the Lion L75623 if you want the largest stated grill on natural gas. Factory natural gas, 75,000 BTU and 830 square inches stated, with solid stainless grates. Accept that burner count, cutout and warranty terms are missing from the listing.

Buy the Flintex RUSDI4 if you want a griddle included and a forgiving cutout. Accept that it ships with propane parts, the NG connector arrives separately, and its area figures disagree.

Buy the MIAOSP Triple Combo if you want propane, natural gas and charcoal in one head. The NG kit is included. Accept that it ships for propane, needs professional conversion and gives no cutout.

Buy the Monument 41847NG if you want a convertible cart with a side burner. Accept that the bullet says kit 97352 is sold separately, and confirm with Monument how it ships.

Frequently Asked Questions

Can I connect a natural gas grill to my house myself?

No. Connecting any grill to a house natural gas supply should be done by a licensed gas fitter or plumber qualified for gas work. The job usually involves running a branch line from the existing pipework, fitting a shut-off valve and a quick-disconnect outlet, checking that the meter and pipes can carry the extra load, and pressure-testing the result. In most places it needs a permit and an inspection. Two listings on this page suggest easy self-installation, the Hygrill saying to just hook it up to the gas line and the Flintex calling setup hassle-free for any DIY enthusiast. Setting a head into a counter may be a DIY task; the gas connection is not. A fitter will also check that the hose and fittings supplied with the grill suit your line and local code, and will leak-test every joint before you light it.

Can I convert a propane grill to natural gas?

Only if the manufacturer says the model can be converted, only with the manufacturer’s kit for that model, and only by a qualified professional following the manual. Natural gas is supplied at a much lower pressure than propane and needs differently sized orifices, and often a different regulator or connector. Running a grill on the wrong orifices can give flames that are too large, too small or yellow and sooty, which can mean incomplete combustion and carbon monoxide. On this page, the MIAOSP includes its natural gas kit, the Flintex ships an NG connector separately, and the Monument says kit 97352 is sold separately. The seven factory natural gas grills are not described as convertible at all; Weber says its E-415 is factory built for natural gas only. If a grill does not offer a kit, do not improvise one.

Is a natural gas grill better than propane?

It is more convenient rather than better at cooking. A natural gas grill runs from your house supply, so there are no tanks to buy, carry, store or swap, and you will not run out halfway through a cook. Running costs are often lower too, though that depends on local tariffs. The trade-offs are permanence and installation. The grill stays near where the line comes out, you need a licensed gas fitter to run and connect the line, and you cannot take it camping or move it across the garden. Heat output depends on the grill’s design and rating for the gas it uses, not on the fuel as such; a grill built for natural gas is rated for natural gas. If you own your home, grill often and can put the outlet in a sensible spot, natural gas is worth it. If you rent or move often, propane is simpler.

How many BTUs should a natural gas grill have?

There is no single right number, and on this page four of the ten listings, the three Webers and the Napoleon, do not give one at all. A more useful measure is rated BTU per square inch of grate, which we can work out for the listings that print both figures. The Bull comes to about 104 BTU per square inch of primary grate, the Hygrill about 75 over its total area and the Flintex about 61 over its stated 653 square inches, all by our arithmetic. Burner design, hood insulation and grate mass also matter, which is why a grill with a lower rating can still sear well. What you definitely need is the total rated input of the grill and any side burner, because the gas fitter sizes the supply line to it. If the listing is silent, get the figure from the manual or the maker.

Where should a natural gas grill go?

Outdoors, in open air, and nowhere enclosed. That rules out garages, sheds, tents, covered porches with walls, and anywhere under a low roof or overhang. Keep the grill clear of the house wall, windows, doors, fences, railings and anything combustible by at least the clearances in its manual. Because a natural gas grill is tied to a fixed outlet, the spot is close to permanent, so choose it with the fitter before the line is run. Allow for the full width with side shelves: the carts on this page run from 51.8 to 66 inches wide. The ground should be level and non-combustible. For a built-in, the island must be built from non-combustible materials to the maker’s cutout and must include the ventilation openings the installation sheet calls for, so that any leaking gas cannot collect in the cavity under the grill.

How do I check a natural gas grill for leaks?

Use soapy water, never a flame. Mix washing-up liquid with water, turn the gas supply on with every burner knob off, and brush the solution over each joint: the quick-disconnect, the hose ends, the regulator or connector, and the valve fittings. Watch for bubbles that grow. If you see them, turn off the supply valve, do not light the grill, and call the gas fitter. Do this after installation, after any conversion, after moving a cart grill on its hose, and at the start of each season. If you ever smell gas, turn off the burners and the supply, keep sparks and flames away, and call the fitter or the gas utility. A leak check takes a few minutes and is the single most useful safety habit for any gas grill owner, natural gas or propane.

Do natural gas grills produce carbon monoxide?

Yes. Every gas flame produces some carbon monoxide, and more when combustion is poor, for example when orifices are wrong after a bad conversion or burners are clogged. Carbon monoxide has no colour or smell. Outdoors in open air it disperses quickly, which is why every grill on this page is for outdoor use only. In a garage, a shed, a tent, an enclosed porch or under a covered area with walls, it can build to dangerous levels without warning. Never move a grill indoors or into a sheltered space to keep cooking in bad weather, and never use one to heat a room. Keep burners clean so they burn with a steady blue flame, and have any conversion done by a professional with the correct kit. A carbon monoxide alarm inside the house near the patio door is a sensible extra precaution.

Should I choose a built-in or a freestanding natural gas grill?

It depends on whether you are building an outdoor kitchen. A freestanding cart, such as the Napoleon Rogue PRO 625, the Weber Spirit E-425 or the Genesis E-415, needs only a gas outlet and a level spot, and can be repositioned slightly for cleaning within the reach of its connection hose. A built-in head, such as the Bull Outlaw or the Hygrill, needs a non-combustible island built to its cutout, with ventilation, which adds design and construction work but gives a permanent, finished look. On this page the split is five and five. Only two built-ins print a cutout, the Hygrill and the Flintex, so for the others get the installation sheet before building. None of the five built-in heads states a side burner; the two carts with one are the Napoleon and the Monument.

Final Verdict

Best OverallNapoleon Rogue PRO 625 Natural Gas Grill

Factory natural gas, five burners over a stated 34 3/4 x 18 in area, infrared side burner, 15-year warranty.

Best ValueWeber Spirit E-425 Natural Gas Grill

The lowest-priced factory-NG cart here, four burners, 10-year warranty, #10 in Natural Gas Grills.

Best Built-InBull Outlaw 30-Inch Natural Gas Drop-In

Four 15,000 BTU burners, 575 sq in primary plus 176 sq in rack, NSF and CSA stated.

Ten natural gas grills, and the most important fact about each is how it leaves the factory. Seven ship ready for natural gas. Two ship for propane with the parts to convert: a full kit on the MIAOSP and a connector in a separate box on the Flintex. One, the Monument, puts natural gas in its title and model number and tells you in its first bullet to buy the kit separately.

The grills easiest to install are the hardest to compare. The three Webers and the Napoleon print no BTU figure, and the Webers print no cooking area. The Bull and the Hygrill print almost everything. If numbers decide it for you, the Bull’s 15,000 BTU per burner over 575 square inches of primary grate is the most fully specified grill on the page; the Lion states bigger totals, 75,000 BTU over 830 square inches, with far less around them.

Safety is not optional with a fixed gas line. Have a licensed gas fitter run and connect the line. Convert only per the manual, with the right kit, by a professional. Keep the grill outdoors, clear of walls and railings, check every joint with soapy water, and remember that carbon monoxide gives no warning in an enclosed space.

If you buy one grill from this page, make it the Napoleon Rogue PRO 625: factory natural gas, five main burners over a stated 34 3/4 by 18 inch area, the only infrared side burner here, and a 15-year limited warranty. If you want the simplest, lower-cost route onto a gas line, the Weber Spirit E-425 is it; if you are building an island, the Bull Outlaw tells you the most before you cut the counter.