There is no headline number on this page. That is deliberate, and it is the most useful thing we can tell you about running costs.
Every figure you will see quoted as "what a pizza oven costs to run" is the product of four assumptions that vary enormously between readers: what you pay for energy, how long your session runs, how long you preheat, and how many pizzas you get out of that preheat. Change any one and the answer moves by a lot. Publish one number and it is wrong for almost everybody who reads it.
So instead: the arithmetic, the inputs you have to supply, and where the cost actually hides. Work it once for your own setup and you will have a number that is true for you rather than one that is true for a hypothetical person in a different country.
Two safety notes before anything else. Portable gas pizza ovens are outdoor appliances. Do not run one indoors, in a garage, on an enclosed balcony, or in a tent — combustion produces carbon monoxide and it kills people who thought they had enough ventilation. Deck temperatures on these ovens are high enough to cause immediate serious burns, and anything nearby that can catch fire will. See portable gas pizza ovens.
Why there is no single answer
Energy prices are not national, let alone global. They vary by country, by region, by supplier, by tariff, by time of day, and over time. Any "average" price is an average over a distribution wide enough that the average describes few actual households.
Appliance consumption also varies. Two ovens of nominally similar type can differ substantially in burner rating or element wattage, in how well they are insulated, and in how much energy they burn holding temperature versus reaching it.
And usage patterns dominate everything. Somebody who preheats for a long time and bakes two pizzas has a completely different cost per pizza from somebody who preheats identically and bakes twelve. Same oven, same energy price, wildly different answer.
One consequence that matters: any running-cost figure you read, here or anywhere else, should carry the date its energy prices were valid. An undated running-cost figure is misinformation with a delay fuse.
The cost model, stated as a formula
Here is the whole thing. It is simple, and its simplicity is the point — the difficulty is in the inputs, not the maths.
Energy used in a session
= (preheat rate × preheat duration)
+ (holding/baking rate × session duration after preheat)
Session cost
= energy used × your energy price per unit
Cost per pizza
= session cost ÷ pizzas produced in that session
For a fuel sold by the unit rather than metered — wood, charcoal, bottled gas — substitute:
Session cost = units consumed in the session × price per unit
That is it. Now the inputs you have to supply, because we will not supply them for you.
Input 1: your energy price per unit
Take it from your own bill, not from a published average.
- Electric: price per kilowatt-hour, including any standing charge apportionment you care to make, and noting whether you are on a time-of-use tariff.
- Piped natural gas: price per unit as your supplier bills it, which differs by country in both unit and format.
- Bottled gas (propane/LPG): price per cylinder refill or exchange, plus the cylinder's contents by mass or volume.
- Wood: price per load or per bag, plus what fraction of a load a session consumes.
Enter the unit price and billing basis from your own dated utility bill or fuel receipt. A national average is less useful than the marginal price you actually pay.
Input 2: your oven's consumption rate
This is the input people most often guess at, and guessing here is what makes published estimates unreliable.
For electric ovens, the element wattage is usually on the appliance plate. That is a peak draw rather than a continuous one, because a thermostatted oven cycles, so treat it as an upper bound unless you measure.
For gas ovens, the burner rating is usually published by the manufacturer as an energy input rate, and for bottled gas you may also see a fuel consumption rate by mass per hour.
For wood, consumption is not usefully specified at all and has to be measured by weighing what you actually burn.
Take consumption from the exact appliance plate or current manufacturer specification, or measure it with a suitable energy meter or cylinder-weight method. Record whether the figure is an input rating or actual session consumption.
Measuring it yourself is the honest route, and it is not hard. An electricity monitor on the socket gives you the real number for an electric oven including its cycling. For bottled gas, weigh the cylinder before and after a session on a scale that reads to a small enough increment. For wood, weigh the fuel.
Input 3: preheat duration
Separately from session duration, because preheat is where the cost hides. See below.
Input 4: pizzas produced per session
Count them. This is the divisor and it has more leverage on cost per pizza than anything else on the list.
Preheat is the part everyone ignores
Preheat is often the largest single block of energy in a pizza session and it produces zero pizzas.
The reason is structural. Bringing a mass of stone, steel, or refractory from room temperature to operating temperature takes a large, fixed quantity of energy that does not scale with how many pizzas you then bake. Holding that temperature and baking on it costs comparatively little per pizza, especially since each individual bake may be very short.
The consequences are worth stating plainly.
Cost per pizza falls sharply with batch size. Two pizzas from a full preheat is an expensive way to eat. Ten from the same preheat is a completely different proposition. If you are cooking for one, the running cost per pizza of a dedicated high-temperature oven is at its worst.
A longer preheat can still be the right call. An under-preheated surface produces a pale, unset base, and the fix is almost always preheat duration. The energy is not wasted if it is the difference between a good pizza and a bad one. See why your pizza base is pale and floppy.
Quoted preheat times are not settled facts. They vary by oven, ambient temperature, target temperature, and whether the endpoint is hot air or a saturated deck. Measure from switch-on or ignition to a defined, logged endpoint.
If you take one thing from this page: measure your preheat energy separately from your baking energy. Until you split those two, you do not know what your pizza costs.
What differs between fuels, other than price
We are not going to tell you which fuel is cheapest. It depends entirely on local energy prices, which is exactly the input we refuse to invent, and the ranking genuinely reverses between markets and between years.
What we can do is describe the shape of each cost, which is stable even when the prices are not.
| Fuel | Cost characteristics | Practical notes |
|---|---|---|
| Electric (domestic oven) | Metered, easy to measure, cycles rather than running continuously | Already in your kitchen; the marginal cost of adding a steel is the steel plus a longer preheat |
| Electric (dedicated pizza oven) | Metered; typically faster preheat than a domestic oven to a higher temperature | Indoor use is normally the design intent; check the manufacturer |
| Bottled gas | Priced per cylinder, so cost per session is easy to miss until the cylinder runs out | Outdoor appliance. CO risk. Cylinder handling and storage rules apply |
| Piped natural gas | Metered; unit and tariff structure vary by country | Fixed installation |
| Wood | Priced per load; consumption hard to predict; storage and drying have real costs | Fuel quality varies; wet wood burns badly and produces more smoke |
Three cost categories that get left out of comparisons and should not be.
Time. A wood fire needs building, tending, and managing. Whether you count that as a cost or as the reason you bought the thing is your call, but it is not zero.
Storage and waste. Wood needs dry storage and takes up space. Cylinders need safe outdoor storage. Both have failure modes that cost money.
Consumables and wear. Cylinder deposits or exchange fees, ash disposal, and the ordinary wear that high-temperature operation inflicts on any oven.
How to work out your own number
Do this once and you will never need a published figure again.
- Get your energy price off your most recent bill, in the units your supplier uses. Write down the date.
- Get your consumption rate from the appliance plate, the manufacturer's specification, or a measurement. A plug-in energy monitor for electric or a scale for bottled gas both settle it in one session.
- Time your preheat to the point where the baking surface is genuinely at temperature, not to the point where the oven says it is ready. Those differ.
- Time the rest of the session from first launch to shutdown.
- Count the pizzas.
- Run the formula above, separately for the preheat block and the baking block, so you can see the split.
- Repeat it at a different batch size. The two results together tell you far more than either alone, because they show you the fixed cost and the marginal cost separately.
Record it the way you record a bake, with the date and the conditions attached. The method is in how to log a bake, and our general position on writing down conditions is in how we test.
In Plain English
Running cost is preheat energy plus baking energy, multiplied by your energy price, divided by the pizzas you made. Preheat is usually the biggest block and produces nothing, so cost per pizza depends more on how many you bake per session than on which fuel you chose.
This is for anyone who knows what an oven cost to buy and has no idea what it costs to use, especially anyone weighing a dedicated oven against the one already in their kitchen.
Use the formula once with your own bill, your own appliance plate, and your own timings. Measure the preheat block separately from the baking block, then repeat at a different batch size so you can see the fixed and marginal costs apart.
Next step: before you buy anything, read what your home oven can and cannot do — a longer preheat and a conducting surface solve more problems than most people expect, and they are the cheapest experiment available.
Where to go next
- Read the full guide: what your home oven can and cannot do for pizza
- Before buying a gas oven, including the CO and burn risks: portable gas pizza ovens
- Why preheat duration matters to the pizza, not just the bill: why your pizza base is pale and floppy
- Recording conditions properly: how to log a bake
- Equipment specs and honest ceilings: the equipment reference