Best Natural Gas Pizza Ovens (2026): Plumb In, Never Refill, Ranked

If you want one oven you can plumb into the house and never refill again, start here. The Ooni Koda 16 solves the problem that holds back most single-burner ovens, an even floor, with an L-shaped burner that runs up the back and along one side of the 16-inch stone, so a full dinner-size pie cooks edge-to-edge with one turn instead of three. It also happens to be the gas oven people most commonly convert to natural gas, which means it's the path with the most community knowledge, the most how-to videos, and the most plumbers who've seen one.

At 40.1 lb it's portable enough to move, though once you've plumbed a fixed gas line you'll likely leave it put. The open-mouth design means no door to clean or warp, you trade a little retained heat for dead-simple operation, so on a cold or windy night you'll lean on the burner more to hold temp. For most buyers, in most yards, that's a trade worth making: the Koda 16 delivers ~95% of the performance of ovens that cost $300 more, and it's the easiest full-size oven to put on a natural-gas line.

This is the oven that gets people into the hobby, and the cheapest one you might plumb into the house. The Ooni Koda 12 strips gas pizza to its essentials: a single rear burner, a 12-inch stone, a gas connection, and an igniter. There's no thermometer, no door, and no L-burner, but it reaches ~932°F, which is plenty to clear the 60-Second-Pizza Club, and at 20.4 lb it's light enough to carry one-handed and store on a shelf. For $399 it's the lowest-risk way to find out whether backyard pizza is your thing.

The honest limits are what you'd expect at the price: the single rear burner leaves a cooler front lip, so you turn the pie more to cook it evenly, and the open mouth sheds heat faster than the insulated compacts. There's also no thermometer, so you're shooting the stone with an IR gun or learning by feel. None of that stops it from making excellent pizza, and for a small space you'd rather plumb than feed with tanks, the Koda 12 is the cheapest honest entry.

The Roccbox punches far above its 12-inch class on heat retention, and it's the rare compact you'd genuinely plumb. Most small ovens are thin-walled and shed heat the moment a cold pie lands; Gozney built the Roccbox with dense insulation and a silicone safe-touch shell, so it holds and recovers temperature like an oven a size up, and you can grab the outside without a glove. It hits ~950°F, and the optional wood burner means a gas-first buyer can add real wood-fired smoke later without buying a second oven.

The compromises are the size and the weight. A 12-inch pie is a personal-to-shared round, not a dinner-size pizza, and at 44 lb the Roccbox is dense for its footprint, portable, but you'll feel it, and once it's on a fixed line it stays put. For a single cook or a couple who want the best heat retention in a small oven and the option to run it off the house gas, the Roccbox earns its long-running cult status; if you need a bigger pie, step up to a 16.

The Arc XL is what you graduate to when you've outgrown launching pies one at a time, and it's the most capable oven here to put on a natural-gas line. Gozney built it around a rolling flame that climbs the back and curls across the dome, bathing the top of the pie while the dense refractory floor cooks the base, and a wide glass door seals the whole chamber so the heat you paid for stays inside. On our heat-recovery test, the Arc XL clawed back its floor temp faster between cold pies than any open-mouth oven in this guide, which is exactly what a dinner party needs.

The costs are real: at 56 lb it's the heaviest oven in this roundup and effectively stationary, which suits a plumbed setup fine, and $899 is $300 over the Koda 16 for the same peak temperature. What that money buys is the chamber: insulation, a sealing glass door, and the kind of build that shrugs off wind and cold. If you host, bake in volume, or want one oven that does pizza and roasting equally well off the house gas, the Arc XL is the most capable NG-convertible we'd put on a patio.

The Koda 2's headline feature is the one Ooni should have added years ago: a built-in thermometer. Every oven in this guide cooks on its floor temp, and on most of them you're guessing, or shooting the stone with a separate IR gun, until you've burned a few pies learning the timing. The Koda 2 reads the deck for you, the single biggest quality-of-life upgrade for anyone still learning when "hot" means "ready." Pair that with the second-gen G2 burner and you get a more responsive flame than the original Koda 12.

At 35.3 lb it's the lightest of our mid-and-up picks and still genuinely portable, though a fixed line will keep it in one spot. The 14-inch ceiling is the only real compromise: it's a generous personal-to-two-person pie but not the full dinner-size round you get from the 16s. If you mostly cook for one or two and want the smartest, most beginner-friendly Ooni to plumb into the house, the Koda 2 is the one to get.

The Koda 2 Max is the oven you buy when one pie at a time isn't enough. Its 20-inch stone is the largest in this guide by a wide margin, and the trick that sets it apart is dual independent heat zones, you can run a screaming-hot launch zone and a gentler finishing zone at the same time, or simply cook two pies side by side. The Koda 2 Max hits the same ~950°F ceiling as the rest of the field; what you're paying for is capacity and control, the closest a Koda gets to a built-in deck oven.

The trade-offs are size, weight, and price. At 95 lb it is not portable in any meaningful sense, this is a stationary oven for a dedicated spot, which is exactly why plumbing it into a natural-gas line makes so much sense. And at $1,299 it's the most expensive oven in this guide. But if you host big, want two zones, and intend to install a permanent oven on the house gas, the Koda 2 Max is the showpiece to do it with.