Disclosure: Some links in this article are affiliate links. We may earn a commission on qualifying purchases at no extra cost to you.
Register your Ooni within 60 days of buying it. That one step turns a one-year manufacturer's warranty into five years on every Koda, Karu and Fyra oven, and three years on the Volt 2, which is why it belongs at the top of this guide rather than buried in a policy footnote. If you are still weighing models, our Ooni brand guide sorts the current lineup by fuel system.
Everything else a new owner faces, inspecting the crate, seasoning the stone, hitting the right baking temperature, and knowing what to do if something fails, follows from two things: which fuel your oven burns, and whether you bought it directly from Ooni. A gas Koda gets cooking in minutes with a hose and regulator in the box. A Karu asks you to manage a solid-fuel fire unless you add the optional gas burner. A Fyra lives or dies on how dry your pellets are. The Volt 2 plugs into a wall and stays indoors.
Support and returns run on a separate track from the warranty. Ooni operates a 60-day window for unused ovens, a 60-day Great Pizza Guarantee for used ovens bought on Ooni.com, and a voluntary warranty covering defects in materials and workmanship rather than wear. Mixing those three up is the second most common beginner mistake.
The Warranty, at a Glance
| Oven | Standard warranty | Registered within 60 days |
|---|---|---|
| Koda 2, Koda 2 Pro, Koda 2 Max | 1 year | 5 years |
| Karu 2, Karu 2 Pro | 1 year | 5 years |
| Koda 12, Koda 16 | 1 year | 5 years |
| Karu 12, Karu 16 | 1 year | 5 years |
| Fyra 12 | 1 year | 5 years |
| Volt 2 | 1 year | 3 years |
| Volt 12 (older electric model) | 1 year | 2 years |
Every Ooni product ships with a one-year voluntary manufacturer's warranty, and registering inside the 60-day window extends it. The extension counts from the original purchase date, so the clock does not restart when you register. Sign up on day 55 and your five-year Koda term still began on day one.
Coverage is for residential use. If you gift the oven, the remaining term carries over as long as the new owner has proof of purchase, and replacement parts inherit only whatever remains of the original period rather than starting fresh.
A note on the Fyra 12: it is no longer part of Ooni's current US oven catalog, but Ooni still maintains warranty and support material for it, and existing owners remain covered under the same registration rule. Used buyers should verify what is still supported before committing, which our used pizza oven buying guide covers in detail.
Which Ooni Are You Setting Up?
Ooni's second-generation lineup splits cleanly by fuel, and for a first-time owner that split matters more than the size difference. The Koda family runs on propane: Koda 2 with a 14-inch-plus deck, Koda 2 Pro at 18 inches, and Koda 2 Max at 24 inches with two independently controlled gas zones. All three top out at 950°F, and Ooni supplies the gas hose and regulator on US models. The Koda 2 assembles in under five minutes, which makes it the shortest path from box to first pizza. You can check the Ooni Koda 2 on Amazon if that is the route you want.
The Karu 2 (12 inches) and Karu 2 Pro (16 inches, with roughly 17 inches of usable deck and 5.7 inches of internal height) burn wood and charcoal straight out of the box, with an optional gas burner sold separately. That flexibility is real, but it is a purchase decision rather than a setup shortcut. The gas burner comes in compact and large versions, and the compact unit designed for the Karu 12 and Karu 2 will not fit a Karu 2 Pro, so the part has to match the oven. Our Karu 16 and Karu 2 Pro review digs into what the multi-fuel platform actually costs you in fire management.
The Volt 2 is the indoor route. It runs on 120 V and 1600 W in North America, holds a 13.3-inch stone, and covers 70 to 850°F with adaptive Pizza Intelligence presets for Neapolitan, Thin & Crispy and Pan styles, plus separate Oven, Broil and dough-proofing modes. Our Volt review compares it against the older Volt 12 and the gas competition.
Step 1: Inspect the Oven Before You Light It
Pull the stone out and look at it against a light. Cordierite is a ceramic, and the failure that matters is a crack running through the slab rather than a hairline surface mark. Photograph anything that looks wrong before the oven is fired. A warranty claim leans on those images, and a pre-use photo is far easier to defend than one taken after three bakes.
While you are in there, confirm the parts that should be present for your model: the gas hose and regulator on a Koda, the fuel tray and chimney on a Karu, the stone and burner assembly on a Fyra 12, or the removable smoke filter on a Volt 2. Locate the serial number now and write it down. Keep the receipt somewhere you will still find it in five years, because proof of purchase is required for any claim.
Step 2: Register Within 60 Days
Registration is the highest-value five minutes in this guide. It runs through the Ooni app or the support site using your proof of purchase, and it is what converts the one-year baseline into five years on every gas, multi-fuel and pellet oven, or three years on the Volt 2.
The 60-day window is firm and measured from purchase, not from the first cook. An oven that sits boxed in a garage through the winter can burn most of that window before the stone is unboxed. If the oven is a gift, register it with the recipient's details so the coverage lands with the right person.
Save the confirmation email or screenshot alongside the receipt. Ooni cannot reconstruct a registration that was never completed, and a vague memory of having done it will not open a claim.
Step 3: Put It in the Right Place
Koda, Karu and Fyra ovens are outdoor appliances and should not be run inside a garage or under a low roof. The Volt 2 is the opposite: it is built for indoor countertop use and should not be stored outside.
Place an outdoor model on a stable, heat-resistant surface that can carry the oven with a full fuel load. The Koda 2 Pro weighs about 66 lb and the Koda 2 Max about 95 lb, so a folding camping table is not the answer. Leave the clearances the manual specifies and keep the oven clear of anything that can scorch. A table or cart rated for the load solves stability and working height in one move, and our pizza oven tables and stands guide covers what fits which model.
Step 4: Confirm You Have the Right Fuel
Getting the fuel wrong is the fastest way to void coverage, and Ooni lists incorrect fuel among the warranty exclusions.
- Koda 2 / Koda 2 Pro / Koda 2 Max: propane. US models include the hose and regulator. Natural gas is a factory configuration rather than a field conversion, so confirm which version you bought before plumbing anything. Our natural gas conversion guide covers the kits that exist and the ones that do not.
- Karu 2 / Karu 2 Pro: wood and charcoal out of the box, gas only with the matching optional burner. Do not improvise a conversion, and do not use a burner from a different Karu generation.
- Fyra 12: 100 percent hardwood pellets, never heating or furnace pellets. Damp pellets are the root of most Fyra trouble.
- Volt 2: mains power only, 120 V and 1600 W on the North American model.
If you are still deciding which fuel suits your cooking, the wood, gas, charcoal and pellet comparison breaks down the trade-offs before you commit.
Step 5: Season the Stone
Ooni's general first-use guidance is to run the oven at maximum temperature for about 30 minutes, let it cool, then wipe the interior with a dry paper towel. The point is to burn off manufacturing residue before food touches the stone.
Treat that as the default rather than the rule. Individual model manuals can specify a slower firing or seasoning sequence, and where they differ, the manual for your oven wins. If the stone darkens or picks up a patina during this stage, that is normal aging rather than a defect, and our pizza stone care guide explains what is worth attention and what is not.
Step 6: Preheat the Stone, Not the Air
A chamber thermometer tells you how hot the air is. It does not tell you whether the stone is ready, and on a fast gas oven the two can read very differently.
Ooni's own target for Neapolitan-style pizza is roughly 750 to 850°F at the stone surface, not the 950°F ceiling the oven can reach. Chasing the maximum number is a common beginner error: the base scorches before the top sets. On the Fyra, Ooni asks for the stone to hit at least 750°F before the first pizza goes in.
An infrared thermometer is what makes this measurable, and it is the second accessory to buy after a peel. Our pizza oven thermometer guide compares the options, and you can also check an infrared thermometer on Amazon.
Timing varies by model. A Koda 2 reaches temperature in minutes. A Karu 2 can hit roughly 850°F in about 15 minutes on gas under good conditions, and longer on solid fuel. The Volt 2 is ready to cook in around 12 minutes for its supported presets.
Step 7: Keep the First Pizza Simple
Minimal toppings, a light dusting of semolina, and a dough ball sized to your deck. A 12-inch oven takes a 250 g ball, a 14-inch takes around 300 g, and a 16-inch takes 330 to 350 g. Heavy toppings and wet doughs make the launch harder, and the launch is the part you are actually learning.
Turn flame-fired pizzas every 20 to 30 seconds. Ovens with a single rear burner, like the Koda 12, run hotter at the back than the front, and a pizza left still will show it. Rotating-stone ovens and the Volt 2 reduce how much turning you do, but none of them removes it entirely.
Sticking, tearing and pale bottoms trace back to dough hydration, fermentation time and launch technique more often than to the appliance. Our pizza oven temperature guide covers how to read and adjust heat across styles, and the peels guide covers the launching tools worth owning.
What the Warranty Covers, and What It Doesn't
Ooni's voluntary warranty covers defects in materials and workmanship. Where an integral fault prevents the oven from working, Ooni can repair the affected component or replace the whole product at its discretion.
It does not cover the normal consequences of cooking with fire. The published exclusions are worth reading once, before you need them:
- reasonable wear and tear
- discoloration and heat tarnishing
- surface rust
- water damage
- excessive salt-air or humidity exposure
- severe weather and natural disasters
- user error
- minor heat warping that does not stop the oven working
- incorrect fuels
- use outside the country of purchase
- improper use
- any modification to the product
A dark patch on the stone, a bronzed door, or a spot of surface rust on carbon steel are expected aging rather than faults. Surface rust shows up when an outdoor oven is stored wet, which is a storage problem rather than a manufacturing one. A cover helps, and our pizza oven covers guide lists model-specific fits.
Modification is its own category. Adding a third-party burner, cutting into the shell, or swapping in non-approved components can void coverage for whatever follows. The same caution applies to fuel: staying with the factory gas configuration or an official kit keeps you inside the warranty, and straying outside it does not.
Filing a Claim: What Ooni Asks For
When you contact Ooni about a fault, come prepared. The standard claim package is your full name, the serial number, proof of purchase, and photographs of the faulty part.
Ooni may also ask for a video or a description of the troubleshooting you have already tried, and it may ask you to return the faulty product for assessment. Having the photos and the receipt ready in the first message is what keeps a claim moving instead of turning into a two-week back-and-forth.
Not every cosmetic change is a claim. A hairline crack that does not run through a stone, or a stone that darkens with use, is normal aging. A stone that actually breaks during seasoning or a high-temperature bake is a different situation, and it is worth reporting with photos so Ooni can assess it on its merits.
Returns and the Great Pizza Guarantee
These are two separate programs, and confusing them is the most common mistake in this whole area.
| Unused returns | Great Pizza Guarantee | |
|---|---|---|
| Applies to | Unused goods in original packaging | Pizza ovens bought directly from Ooni.com |
| Window | 60 days after receipt | Notify within 60 days of delivery |
| Conditions | Original packaging; grocery excluded | At least 28 days of ownership and five pizza attempts |
| Outcome | Refund, free for mainland US items in original condition | Oven taken back for a refund if Ooni cannot get you results |
| Process | Support portal | Experience Team |
The unused window does not apply to an oven you have been cooking on for a month, and the Great Pizza Guarantee does not apply to an oven bought from a retailer. Buy from Amazon or a local dealer and your return runs through that seller's policy, not Ooni's. Partial refunds can apply for items that are not in original condition, are user-damaged, incomplete, or returned outside the 60-day grace period.
The Great Pizza Guarantee is narrower than it sounds but genuinely useful. Buy on Ooni.com, cook at least five pizzas over at least 28 days, follow the app and Essentials guidance, and give the support team a chance to troubleshoot. If you still cannot make pizza you are happy with, Ooni takes the oven back. It runs alongside your fault remedies and statutory rights rather than replacing them.
Support: Contacts, App and Temperature Hub
Ooni's main support route is the contact form on its support site, with support@ooni.com as the email fallback. The current US contact page commits to a reply within one business day, and the returns team targets 24 to 48 hours for return submissions. Product FAQs, manuals, setup videos, troubleshooting articles and warranty registration all live behind the same portal.
One caveat on speed. Ooni's beginner pizza copy describes support as available 24/7, but the current contact page does not publish staffed live-chat or phone hours, so plan around the one-business-day email target rather than expecting an instant human reply at 2 a.m.
The Ooni app carries setup guidance, recipes, tutorials, a dough calculator, registration and cooking guidance. If your oven supports Ooni Connect, the hub feeds live temperature readings and food-probe data into the app with alerts. Koda 2 Pro, Koda 2 Max and Karu 2 Pro include the hub; on the base Koda 2 it is an optional add-on. For anyone still learning to read stone temperature by eye, the live readout is the more useful half of the app.
Common Mistakes to Avoid
- Skipping registration. Without it, you are on the one-year term and the extension is gone for good.
- Assuming the 60-day clock starts at first use. It starts at purchase, and a boxed oven can burn the window before it is ever lit.
- Chasing the maximum temperature. Ooni's own Neapolitan target is 750 to 850°F at the stone, well below the 950°F ceiling.
- Filling a Fyra hopper before the starter fire is established. Pellets bridge and starve the flame when the burn is not already going.
- Using damp pellets. Dry hardwood only, stored in a sealed container away from the weather.
- Treating the unused-return window as a trial period. Once you have cooked on the oven, your route is the Great Pizza Guarantee or a fault claim.
- Buying the wrong Karu gas burner. Compact and large units are not interchangeable across generations.
- Storing an outdoor oven wet. Surface rust is excluded, and a cover is far cheaper than a replacement shell.
Conclusion
Register the oven in the first week, photograph the stone before the first fire, and season it at maximum heat before any dough touches it. Those three moves prevent most of the problems that turn a new Ooni into a support ticket, and they take under an hour in total.
If you have not chosen yet, the fuel decision drives everything downstream. Gas is the shortest learning curve, multi-fuel adds fire management in exchange for flexibility, pellets demand dry fuel and airflow, and electric removes the fire altogether. Our Ooni brand guide ranks every current model, and the gas versus wood-fired comparison works through the fuel trade-off directly.
Once the oven is running, technique carries the result. Stone temperature, launch speed and rotation timing matter more than any dial setting. Start with how hot to run your oven, add a perforated peel, and keep an infrared thermometer on the table so you are reading the stone rather than guessing at it.
If you are buying now, check the current Ooni Koda 2 lineup on Amazon.



