The Best Outdoor Pizza Ovens, Compared on Published Specs

How we chose

We have not cooked on these ovens. What we have done is read every manufacturer specification, cross-check the figures against each other, and work out which differences actually change what you can cook.

That turns out to be a narrower list than the marketing suggests. Four of the five ovens here are rated by their makers to the same 950°F. On paper they are interchangeable. In practice the decision comes down to three things that are much less prominently advertised: what you burn, how big a pizza you want, and where you are allowed to run it.

Fuel is the real decision

Everything else follows from it.

Gas is the default, and should be

The Ooni Koda 16 does one thing: it burns propane and gets hot. There is no fire to build, no wood to feed, and nothing to learn before your first pizza works. Ooni rates it to 950°F, and its 0.6-inch cordierite stone is the thickest listed on any of the portable ovens here — stone mass is what recovers floor temperature between pizzas, which is what stops your third pizza being worse than your first.

At 40.1 lb it is also the lightest of the 16-inch options by some margin.

Live fire is a skill, and a commitment

The Karu 2 Pro burns wood, charcoal or gas, which sounds strictly better until you notice the weight: 62.6 lb, over half again the Koda 16. Ooni lists the same 950°F ceiling and a slightly wider 17-inch cooking surface.

Buy it because you want to manage a fire, not because the option is there. If you are not going to burn wood, you are carrying an extra 22 lb for nothing.

Electricity buys you a kitchen

The Ooni Volt 2 is the only oven here you can legitimately run indoors. It draws 1600W from a standard 120V socket and covers 70–850°F, which makes it a proofing box and a roasting oven as well as a pizza oven.

The trade is real: 850°F against 950°F, and 12 inches against 16. That 100°F matters — it is roughly the difference between a 60-second Neapolitan bake and a 90-second one.

Size is about heat, not diameter

The obvious reading of 12 versus 16 inches is how big a pizza you can make. The more useful reading is how much thermal mass sits under it.

A larger stone holds more heat, so it drops less when a cold base lands on it and recovers faster afterwards. Cooking for four on a 12-inch oven is not four times one pizza — it is one good pizza and three progressively worse ones while the floor catches up.

The Gozney Dome Gen 2 is the extreme case: Gozney publishes a capacity of three pizzas at once. That changes what the evening looks like, because everyone eats together instead of in sequence.

Where the specifications stop being useful

Three things matter a great deal and appear on no spec sheet.

Recovery time between pizzas. Manufacturers publish a maximum temperature, not how quickly the floor returns to it. Stone thickness is the best available proxy, which is why the Koda 16's 0.6-inch stone is worth more attention than its headline 950°F.

How evenly the floor heats. A single burner at the back produces a hotter zone than a wraparound flame. This is why every experienced pizza cook turns the pizza, and why no oven's stated maximum tells you what your base will actually do.

Whether you will use it. An oven that takes 20 minutes to heat gets used on weeknights. One that needs a fire built an hour ahead becomes a weekend project. Gozney publishes an under-20-minute figure for the Roccbox; wood-fired ovens are a different proposition entirely.

Who each one is for

If you want one recommendation and no further thought, the Koda 16 is it: the largest pizza, the thickest stone, the least to go wrong.

Take the Roccbox if it needs to travel — retractable legs and a safe-touch silicone jacket are portability features the others do not have, and Gozney's 12-inch limit is the price of that.

Take the Volt 2 if outdoor space is the constraint rather than budget. It is the only one here that is legal and safe in a kitchen.

Take the Karu 2 Pro only if live fire is the point, and the Dome Gen 2 if you cook for groups often enough that batch size changes your evening — Gozney puts that at three 10-inch pizzas at once, or two 12-inch ones, which is a smaller claim than "three pizzas" sounds and a more useful one.