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
- $45: Fontana Forni’s complete NG conversion kit (regulator + orifices) — the cheapest of any brand covered here, per Fontana Forni USA’s own product listing.
- $129-$219: Alfa Forni’s conversion kit range, depending on the model and whether you’re converting propane-to-NG or NG-to-propane, per propizzaovens.com’s Alfa-authorized listing.
- $55, Koda 16 only: Ooni’s natural-gas kit price — and per Ooni’s own product page, it is “compatible with Ooni Koda 16 only,” not the current Koda 2 or Koda 2 Max.
- $600-$1,300: the typical cost to run a dedicated natural-gas line to an outdoor grill or oven, per Angi’s 2026 gas-line installation data — the real cost of “natural gas” usually isn’t the kit, it’s the plumbing.
Which ovens offer a natural-gas option
| Oven / Brand | NG option | Kit price | Notes |
|---|---|---|---|
| Fontana Forni (Maestro 60, Napoli, Firenze, Roma) | Yes | $45 | Cheapest kit; Volta model's kit listed "coming soon" |
| Alfa Forni (Moderno, Classico, Futuro) | Yes | $129-$219 | Professional install required to keep warranty valid |
| Ooni Koda 16 | Yes (Koda 16 only) | $55 | Discontinued model — does not fit Koda 2 / Koda 2 Max |
| Gozney Dome (Gen 2) | Rolling out | N/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, Blackstone | No | — | Propane (or wood/electric) only, no NG kit sold |
1. Fontana Forni — Cheapest Natural Gas Conversion
Fontana Forni (Maestro 60 / Napoli / Firenze / Roma)
- 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.
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)
- 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.
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
- 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.
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
- 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.
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
- Already have a gas line? Match your oven brand to its kit — Fontana is cheapest, Alfa covers the most models, and the Koda 16 kit only helps if you already own (or are buying) that specific discontinued Ooni model.
- Building a new outdoor kitchen from scratch? Budget the $600-$1,300 line-install cost into your project total, not just the oven price — see our outdoor kitchen pizza oven guide for how that fits a permanent build.
- Just want convenience, not a permanent install? Skip natural gas entirely. A spare propane tank costs a fraction of a professional gas-line install and works with every oven in our best gas pizza oven rankings, not just the four brands above.
- Never do it yourself. Every kit here explicitly calls for a licensed gas technician — orifice sizing and pressure regulation are safety-critical, not a weekend DIY project.
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.