What It Actually Costs to Run a Pizza Oven: The Real Math, Fuel by Fuel

Fuel cost only. Cost per hour is the oven at full rated output. Cost per pizza uses the session model in the methodology (8 pizzas per session), so it scales directly if you cook more or fewer. Propane is priced at the EIA residential average of $2.674 per gallon; electricity at the EIA national average of 18.44 cents per kWh.

Every rating in that table came out of the manufacturer's own manual or spec page, not from a retailer listing and not from memory. Sources are in the inputs table further down. Pellet and hardwood ovens are absent from this table on purpose: the manufacturers do not publish consumption figures precise enough to compute a defensible number, and we explain that in full below rather than fill the cells with guesses.

The headline spread is 6.2x, from 1.7 cents to 10.6 cents a pizza. In absolute terms it is nine cents. Nine cents per pizza is the entire difference between the most and least efficient mainstream pizza oven you can buy, and that number is doing a lot of work in the break-even section below.

Strip the ovens out and price the fuels on the only basis that lets you compare them, dollars per million BTU of delivered energy. The ranking flips completely.

Electricity costs 3.5 times as much per BTU as natural gas and 1.85 times as much as propane, and the electric oven still wins on cost per pizza. The reason is in the ratings, not the rates: an Ooni Volt 2 at 1,600 W consumes about 5,459 BTU per hour, while an Ooni Koda 16 consumes 29,000 BTU per hour. That is 5.3 times less energy. Buying the most expensive fuel and using a fifth as much of it wins comfortably.

The other thing that table shows is how bad pellets are. A branded 20 lb bag of cooking pellets is $144 to $156 per million BTU, roughly ten times natural gas and five times bulk heating pellets of the same nominal energy content. You are paying for food-grade species selection, packaging, and a logo. Bulk heating pellets are far cheaper per BTU but are not sold as cooking fuel, and species and binder differ, so we are not recommending you burn them under a pizza. We are pointing out that the price gap between the two is about 6x and is not explained by energy content.

If natural gas is available to you, it is the single biggest lever on this page. Our best natural gas pizza oven guide covers what is actually available, and natural gas vs propane covers the trade-offs beyond cost.

Four rules, in order of how much money they move.

1. Ignore running cost when choosing between ovens. The entire spread across the mainstream field is nine cents a pizza. Over ten years of two pizza nights a month, 1,920 pizzas, the most fuel-hungry oven here burns $203.52 of propane and the most efficient burns $33.02. The difference across a decade is $170, which is less than the price gap between most of the ovens in our best pizza ovens ranking. Choose on heat, size, and where it will live. Then read best outdoor pizza ovens or best indoor pizza ovens depending on which of those you answered.

2. If you already have a natural gas line, that is the one exception worth acting on. The Ooni Koda 16 natural gas variant costs a dollar more than the propane version and runs at $0.45 an hour instead of $0.85. The fuel saving repays the dollar in about 20 pizzas. The catch is that this only works if the line and the quick-connect already exist. If a plumber has to run one, the annual fuel saving at 24 sessions a year is about $9.62, so a $500 installation takes roughly 52 years to repay on fuel alone. Install a gas line because you are tired of tanks, not because of the math.

3. Refill your propane cylinder, do not exchange it. This is worth more than the oven choice. Details in the section below, but the short version: exchange costs roughly double per gallon and gives you 15 lb instead of 20.

4. If you are choosing electric, do it for the plug, not the running cost. Electric ovens are cheaper to run, but the saving is under two cents a pizza against a small gas oven. The real arguments for electric are that it works indoors, on a balcony, and in a flat, and that it preheats in about half the time. That case is made properly in best electric pizza ovens, best countertop pizza oven, and wood vs gas vs electric.

Where running cost genuinely does matter is commercial use. At 40 pizzas an hour, eight hours a day, the nine-cent spread becomes real money, which is why our commercial countertop guide and food truck guide treat power draw as a first-order spec rather than an afterthought.

Every figure on this page comes from one of four formulas. They are written out so you can substitute your own utility rate and re-derive everything.

Gas cost per hour = burner rating (BTU/hr) ÷ fuel energy content (BTU per unit) × fuel price per unit.

Worked, for the Ooni Koda 16 on propane: 29,000 ÷ 91,452 = 0.3171 gallons per hour. 0.3171 × $2.674 = $0.85 per hour. Over a one hour, 8 pizza session that is $0.85 ÷ 8 = $0.106 per pizza.

Worked, for the same oven on natural gas: 29,000 ÷ 1,036,000 BTU per thousand cubic feet = 0.0280 thousand cubic feet per hour. 0.0280 × $15.97 = $0.45 per hour, or $0.056 per pizza.

Electric cost per hour = watts ÷ 1,000 × price per kWh.

Worked, for the Ooni Volt 2: 1,600 ÷ 1,000 = 1.6 kW. 1.6 × $0.1844 = $0.295 per hour. The Volt 2 session is 12 minutes of preheat plus 8 pizzas at 2 minutes, 28 minutes or 0.467 hours: 0.467 × $0.295 = $0.138 for the session, $0.0172 per pizza.

Cost per million BTU = fuel price per unit ÷ (energy content per unit ÷ 1,000,000).

Worked, for electricity: $0.1844 ÷ (3,412 ÷ 1,000,000) = $54.04 per million BTU. For natural gas: $15.97 ÷ 1.036 = $15.42. For propane: $2.674 ÷ 0.091452 = $29.24.

Break-even in pizzas = purchase price difference ÷ fuel cost difference per pizza.

Worked, for an Ooni Volt 2 at $698.95 against an Ooni Koda 16 at $498.00: the price gap is $200.95 and the fuel saving is $0.106 − $0.0172 = $0.0888 per pizza. $200.95 ÷ $0.0888 = 2,263 pizzas.

Substitute your own numbers freely. If your electricity is 30 cents a kWh rather than 18.44, the Volt 2 costs $0.48 an hour and 2.8 cents a pizza, and it still runs cheaper than a Koda 16 on propane.

This is the table that settles the argument. Purchase prices were verified live through the Amazon Product Advertising API on August 8, 2026. Fuel cost differences come from the table at the top. The break-even column is simply the price gap divided by the per-pizza saving.

Read the first row carefully, because it is the whole argument. Paying $200.95 extra for the more efficient oven takes 2,263 pizzas to repay. At two pizza nights a month, eight pizzas each, that is 283 pizza nights, or 23.6 years. At a genuinely committed one pizza night a week it is still 5.4 years. Nobody should buy an oven on that basis, and anyone telling you an expensive oven "pays for itself in fuel" is not doing arithmetic.

The bottom two rows make the opposite and more useful point: in the pairs where the cheaper-to-run oven is also the cheaper oven, break-even is immediate and running cost is a free bonus rather than an investment case. The Gozney Arc Lite is $600 less than the Arc XL and burns less gas doing it. What the XL buys is capacity and a bigger door, not efficiency. That trade is covered properly in Arc vs Arc XL.

The only row where the math genuinely argues for spending more is the natural gas variant at a dollar premium, and even there the honest framing is that a dollar is not a decision. What matters is whether you already have the line.

This is the single largest running-cost lever available to a propane oven owner, and it has nothing to do with which oven you bought.

A tank exchange cylinder does not contain 20 lb of propane. AmeriGas states on its own website that its exchange grill tanks contain a net weight of 15 lb. U-Haul states on its own website that many exchange programs fill 20 lb tanks to about 15 lb, and that a refill therefore gives up to 33% more propane. This is not a conspiracy theory: the Federal Trade Commission brought a case in 2014 over Blue Rhino and AmeriGas each cutting exchange fill from 17 lb to 15 lb in 2008 without cutting the price, which both companies settled in October 2014.

The price runs the same direction. U-Haul publishes both figures on its own site: refills at approximately $3.00 to $4.00 per gallon, exchange at typically $5.00 to $6.00 per gallon. A Blue Rhino 20 lb exchange was $23.99 at Ace Hardware when we checked on August 8, 2026, and neither Blue Rhino's own site nor the retailer's product page discloses the fill weight anywhere.

Put together: you pay roughly double per gallon and receive three quarters as much gas. In cost-per-million-BTU terms that is $54.67 to $65.61 for exchange against $32.80 to $43.74 for a refill, and $29.24 at the EIA residential average.

What that means in run time, using the widely used industry convention that a 20 lb cylinder holds about 4.6 gallons when filled to the standard 80%:

One honesty note on that table: the 4.6 gallon figure is an industry convention, published by propane suppliers rather than by any government source, and we could not verify it from a primary source. The gallons-per-hour column does not depend on it and is solid; the hours columns inherit its uncertainty. Treat them as close, not exact. More on propane consumption in do pizza ovens use a lot of gas.

Live-fire ovens are where the published data runs out, and we would rather say so than fill in the gaps.

The pellet problem is that Ooni publishes two figures that cannot both be true. On the product page for its Premium Hardwood Pellets, Ooni says one 20 lb bag lasts "a good 8-12 hours of continuous cooking," which is 1.67 to 2.5 lb an hour. In its help centre, Ooni says a Fyra 12 uses approximately 25 lb of hardwood pellets per 10 pizzas, which is 2.5 lb per pizza. At the 60 to 90 seconds a Fyra is designed for, those two claims differ by roughly an order of magnitude. We could not load the help centre article directly (Ooni's support site now renders as a JavaScript application), so we flag that as a second-tier source, but both numbers are Ooni's.

Rather than choose, here is the range. At Ooni's own $25.00 per 20 lb bag, which is $1.25 a pound:

Even the generous end of that range makes pellets the most expensive fuel in the category by a factor of three against propane, and the pessimistic end makes them thirty times more expensive. What we can say confidently is the direction: pellets cost far more per pizza than gas or electricity, and the branded cooking bags are the reason.

The hardwood problem is simpler: nobody publishes a weight. We can price the boxes. Ooni sells a Karu 12 fuel bundle at $90.00 and says only that "each box will last enough to cook dozens of pizzas." Cutting Edge Firewood sells kiln-dried pizza wood from $49.00 for a standard box to $399.00 for a rack, and its product page publishes no usable weight. Without a weight, there is no path from a box price to a cost per BTU, so we do not publish one.

What we can source is the energy side. The University of Maryland Extension's Heating with Wood publication puts bone-dry wood at about 8,600 BTU per pound and air-dried wood at 20% moisture at about 7,000 BTU per pound, with roughly 1,200 BTU consumed vaporising each pound of water. Kiln-dried cooking wood sits between those. That is the physics; the economics are unpublished. Our best wood for a pizza oven guide covers species and moisture, which affect your bake far more than they affect your bill.

Nothing on this page is derived from anything not in this table. Substituting your own figures is encouraged.

One rating-plate subtlety worth flagging for anyone re-deriving these: Gozney's European manuals give the Arc as 4.5 kW and the Arc XL as 5.5 kW, which convert to roughly 15,355 and 18,767 BTU per hour, higher than the US plate figures of 14,400 and 17,500. The difference is regulator pressure, not a typo. For a US audience the US and Canada manual is the correct source, and that is what we used.

Every running-cost article on the internet has numbers for things nobody actually measures. Here is what we tried to verify and could not, so you know exactly where the edges of this page are.

Propane liquid density in pounds per gallon. The conventional figure of 4.24 lb per gallon appears only on commercial and calculator sites; neither EIA nor the DOE Alternative Fuels Data Center publishes it on the pages we checked. It is also internally inconsistent with the other widely repeated figure: 20 lb divided by 4.24 lb per gallon is 4.72 gallons, not the 4.6 gallons everyone quotes. We therefore ran all propane math in gallons and BTU, and used pounds only where a source stated pounds directly.

Cost per BTU for kiln-dried cooking wood. No retailer we checked publishes a usable weight for a box of pizza wood. Without a weight there is no defensible path from a box price to a cost per pizza, so there is no number.

Solo Stove Pi Prime burner rating. The figure of 15,000 BTU is widely repeated, but Solo Stove's site blocked every attempt to read it and the retailer-hosted manual PDF contained no technical content. Because we could not confirm it from the manufacturer, the Pi Prime is absent from the tables above rather than present with an unverified rating. Our Pi Prime review covers everything about it that is verifiable.

Wood consumption for the Ooni Karu ovens. Ooni publishes no pounds-per-hour figure for any Karu, only qualitative guidance about keeping five or six pieces of kindling burning. This is a confirmed absence rather than a failed search.

Preheat time for the Gozney Arc, Arc XL, and both Ninja ovens. None is published. Ninja's own spec page states its three-minute bake time is "excluding preheat" without ever giving a preheat figure. Gozney says "within minutes."

A resolved Ooni Koda 16 preheat time. Ooni's product page says 950°F in 20 minutes; Ooni's own explore page for the same oven says 500°C in 15 minutes. Both are Ooni. We used neither in the cost math (our session model states its own preheat assumption) and we are not going to pick between them. See how long does a pizza oven take to heat up for what the range means in practice.

Thermal efficiency for any oven. No manufacturer publishes one. This is the single biggest gap in the page, and it is the reason we compare fuel input rather than heat delivered. It works against gas, so the electric advantage shown above is if anything understated.