Quick Answer: Most outdoor pizza ovens — Ooni Koda 2, Solo Stove, Gozney Roccbox and Arc, Bertello, Pizzello — run on propane only, with no natural-gas option at all. A short list of brands sell an actual natural-gas conversion kit: Fontana Forni ($45 complete kit, Maestro 60/Napoli/Firenze/Roma), Alfa Forni ($129-$219 depending on model), and — oddly — only the discontinued Ooni Koda 16 ($55 kit; it does not fit the current Koda 2 or Koda 2 Max). Gozney’s Dome (Gen 2) has a dedicated natural-gas version, but per Gozney’s own listing it’s rolling out through 2026 in select regions rather than being universally in stock. If your patio already has a gas line, one of these four is your real shortlist.

The best gas pizza oven guide on this site — like most “gas pizza oven” buying advice — is really about propane. That’s the default fuel for nearly every gas oven sold, because it ships in a tank you hook up with a hose and never has to touch a plumber. A true natural-gas oven is a different, smaller category: it’s plumbed into your home’s fixed gas line, professionally converted with a manufacturer-specific kit, and never needs a tank swap again. Here’s exactly which ovens can do it, what the kit costs, and what to expect from the installation.

Natural gas pizza ovens by the numbers

Which ovens offer a natural-gas option

Oven / BrandNG optionKit priceNotes
Fontana Forni (Maestro 60, Napoli, Firenze, Roma)Yes$45Cheapest kit; Volta model's kit listed "coming soon"
Alfa Forni (Moderno, Classico, Futuro)Yes$129-$219Professional install required to keep warranty valid
Ooni Koda 16Yes (Koda 16 only)$55Discontinued model — does not fit Koda 2 / Koda 2 Max
Gozney Dome (Gen 2)Rolling outN/A (dedicated NG model)Launching through 2026, select regions — check current availability
Ooni Koda 2 / Koda 2 Max, Solo Stove, Gozney Roccbox/Arc/Arc XL, Bertello, Pizzello, BlackstoneNoPropane (or wood/electric) only, no NG kit sold

1. Fontana Forni — Cheapest Natural Gas Conversion

Fontana Forni (Maestro 60 / Napoli / Firenze / Roma)

Cheapest NG kit · $45 complete · propane-to-NG or NG-to-propane
  • Complete kit (regulator + orifices) is $45; regulator-only or orifices-only sold separately for $35/$15.
  • Fits Fontana's Maestro 60, Napoli, Firenze, and Roma lines (Volta kit listed "coming soon").
  • Fontana's own gas ovens already clear ~930°F, matching propane performance once converted.
Check price on Amazon →

Fontana’s kit is by far the least expensive path to a natural-gas hookup, and it’s sold directly by Fontana Forni USA rather than through a third-party workaround. Because Fontana ovens are built for permanent outdoor-kitchen installs anyway (see our full Fontana pizza oven rankings), pairing one with a fixed gas line fits how most buyers actually use it — set once into a masonry counter and never moved again.

2. Alfa Forni — Widest Model Coverage

Alfa Forni (Moderno / Classico / Futuro)

Widest NG coverage · $129-$219 · professional install required
  • Covers the most models of any brand here: Moderno (1/2/3/5 Pizze), Classico (2/4 Pizze), Futuro (2/4 Pizze).
  • Genuine Alfa components keep the oven's 900°F+ rating identical on either fuel, per the kit's own spec sheet.
  • Professional installation is required to keep Alfa's warranty valid — this is not a DIY swap.
Check price on Amazon →

Alfa sells conversion kits across its entire propane lineup, which makes it the safest bet if you’re not sure yet which specific model you want — whatever Alfa oven you land on, per our full Alfa pizza oven review, there’s almost certainly a matching NG kit for it. The catch is the same one that applies to the whole Alfa range: even the “portable” Moderno weighs 77 lbs, so these ovens are really built to sit in one place — which lines up well with a natural-gas install anyway.

3. Ooni Koda 16 — Cheapest Kit, But Discontinued-Model Only

Ooni Koda 16 Natural Gas Conversion Kit

$55 · fits Koda 16 only · Koda 16 itself $499 on clearance
  • Installs in about an hour with basic tools, per Ooni's own instructions.
  • Compatible with the Ooni Koda 16 exclusively — confirmed on Ooni's own product page.
  • Does not fit the current-production Koda 2 or Koda 2 Max; Ooni sells no NG kit for either.
Check price on Amazon →

This is the surprising find in this whole category: Ooni’s only natural-gas kit is built for the Koda 16 — the oven the brand discontinued and moved to 1st-Generation clearance at $499. If you already own a Koda 16, or you’re picking one up at its clearance price, adding the $55 kit is the cheapest way onto natural gas in this whole roundup. But if you’re shopping new and specifically want NG, don’t assume it carries over to the current Koda 2 lineup — it doesn’t.

4. Gozney Dome (Gen 2) — Dedicated NG Model, Limited Availability

Gozney Dome (Gen 2) — Natural Gas

Dedicated NG version · rolling out through 2026 · select regions
  • Unlike the others, Gozney builds a dedicated natural-gas Dome rather than selling a conversion kit.
  • Per Gozney's own listing, the natural-gas option is launching through 2026 in select regions — check current stock before counting on it.
  • Every other current Gozney oven (Roccbox, Arc, Arc XL) is propane-only with no NG path.
Check price on Amazon →

Gozney’s approach is different from the others: instead of a bolt-on kit, the Dome gets a purpose-built natural-gas edition. That’s a cleaner engineering solution, but it also means you can’t just buy a standard propane Dome and convert it later the way you can with a Fontana or Alfa — if NG matters to you today, confirm the natural-gas Dome is actually available in your region before ordering.

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What the gas-line install actually costs

The conversion kit itself is the cheap part. If your patio doesn’t already have a natural-gas line, running one is the real expense: $600-$1,300 on average for a grill- or oven-length gas hookup, per Angi’s 2026 cost data, or $20-$35 per linear foot if you’re trenching a longer run from the house. That’s on top of the $45-$219 kit price above. Because of that, natural gas rarely makes sense purely to save on propane — a 20 lb tank already runs 25-40 bakes per fill on a typical oven, pennies per pizza. NG earns its cost when you already have (or are already installing) an outdoor kitchen with a gas line for a grill or side burner, and adding the pizza oven to that same line is a marginal cost rather than a whole new project.

How to choose

The bottom line

If you want a pizza oven that runs on your home’s natural-gas line, your real shortlist is Fontana Forni (cheapest kit at $45), Alfa Forni (widest model coverage, $129-$219), and the discontinued Ooni Koda 16 ($55 kit, clearance oven at $499) — Gozney’s dedicated NG Dome is promising but still rolling out regionally through 2026. Everything else in this niche, including the current Ooni Koda 2 and Koda 2 Max, Solo Stove, Gozney Roccbox and Arc, Bertello, and Pizzello, is propane-only with no conversion path. Factor in the $600-$1,300 typical cost of running the gas line itself before deciding NG is worth it over just keeping a spare propane tank.