Quick answer
Gas and induction suit different kitchens. US programme criteria for commercial ovens show gas at roughly 49 per cent cooking efficiency against 76 per cent for full-size electric units, but induction needs a strong electrical supply and compatible pans, while gas needs a hood and the right gas family. Choose on menu and services.
What actually differs between gas and induction?
Both heat a pan. They differ in where the heat is made and what carries it.
| Gas range | Induction range | |
|---|---|---|
| Heat source | Open flame at the burner, heat travels through the pan base | Magnetic field inducing current in the pan base itself |
| Heat in the room | Combustion products and radiant heat enter the kitchen air | The hob surface stays comparatively cool; the pan and food still release heat |
| Response | Visible flame, adjustable but with thermal lag in the pan | Fast response, especially at low settings |
| Pan requirement | Any pan that sits stably | Ferromagnetic base; aluminium and copper need a sandwich base |
| Services | Gas supply of the correct family and pressure, plus ventilation | Substantial electrical capacity, often three-phase for a full suite |
| Failure mode | Flame failure, gas leak, carbon monoxide risk if combustion is incomplete | Electronics, control board, induction coil; usually a service call rather than a safety event |
The pan point is where most induction disappointments start. A kitchen that buys induction hobs and then uses thin aluminium pans will report that induction “does not get hot enough”. The equipment is working; the pan is not coupling.
Which is more efficient, and what does that mean for the bill?
Efficiency is the ratio of energy absorbed by the food to energy consumed by the appliance. Published US programme criteria give a usable benchmark, because they are the only figures in this field set by an independent body rather than by a manufacturer’s brochure.
Under the ENERGY STAR commercial ovens specification:
- Gas convection ovens must reach at least 49 per cent cooking energy efficiency and an idle rate no higher than 9,500 Btu/h.
- Full-size electric convection ovens must reach at least 76 per cent cooking energy efficiency, with an idle rate of 1.4 kW.
- Half-size electric convection ovens must reach at least 71 per cent, at 1.0 kW idle.
- ENERGY STAR certified commercial ovens are described as about 30 per cent more energy efficient than standard models.
Two things follow.
First, the gap between gas and electric is real but it is not a marketing number: roughly three-quarters of the energy reaches the food in an efficient electric oven, against about half in an efficient gas oven. The rest leaves through the flue, the cavity and the room.
Second, idle rate matters as much as efficiency in a commercial kitchen. An idle gas oven at 9,500 Btu/h is consuming about 2.8 kW of gas energy while cooking nothing (1 kW is 3,412 Btu/h). Converted the same way, an electric oven idling at 1.4 kW uses half the energy — but electricity usually costs more per kWh than gas. Whether the gas oven is cheaper to run therefore depends on the local tariff ratio, and that ratio varies enough between markets that no universal answer exists.
Use this arithmetic rather than a rule of thumb:
annual energy = rated input × hours in use × duty factor
annual cost = annual energy ÷ cooking efficiency × local energy price
Run it with the buyer’s own tariff and shift pattern. In markets where electricity is heavily subsidised, induction usually wins on running cost. In markets where gas is cheap and electricity is expensive or unreliable, the calculation often reverses, even though the electric appliance is more efficient.
What does each option cost to install?
Installation, not purchase price, is where the two options diverge most.
| Item | Gas | Induction |
|---|---|---|
| Supply | Gas line sized for total connected load, regulator, isolation valve | Dedicated circuits sized for connected load; three-phase distribution for a suite |
| Ventilation | Hood over cooking equipment producing grease-laden vapours, with fire suppression where required | Hood still required for grease and heat from the pans, but no combustion products |
| Air balance | Make-up air must replace the large volume extracted, and combustion air must be provided | Make-up air still required for the hood, without combustion air demand |
| Safety systems | Gas detection where required, flame failure devices, CO risk management | Residual current protection, cable sizing, earthing |
| Retrofit | Usually cheaper where a gas line already exists | Usually cheaper where the electrical supply is already adequate |
Plan review guidance in US jurisdictions commonly asks for a commercial exhaust hood with an approved fire suppression system over cooking equipment producing grease-laden vapours, and asks separately whether a hood is provided for a high-temperature dish machine. That hood is the single largest hidden cost in either option, and it is present in both.
The difference is in the building services. A gas suite needs a larger gas service and combustion air; an induction suite needs a bigger electrical service and often a transformer upgrade. Ask an electrician for the cost of the supply upgrade before comparing appliance quotations, because that number frequently exceeds the price difference between the ranges themselves.
Which cooking methods still favour gas?
Induction wins on precise, repeatable heat and on kitchen temperature. Gas still holds specific ground.
Gas advantages that are hard to replicate:
- Wok cooking. A round-bottom wok needs flame along its sides. Induction wok hobs exist and work, but the burner remains the reference for high-volume Asian kitchens.
- Chargrilling and charring. Direct flame contact produces colour and flavour compounds that a flat induction surface cannot.
- Tandoor and clay oven work. Flame and radiant heat are intrinsic to the method.
- Roasting in a pan with reduction. Flame licking the pan sides helps reduce stocks quickly.
- Markets with unreliable electricity. A gas range keeps working through outages and voltage swings.
Induction advantages that are equally specific:
- Low ambient heat. A kitchen with six induction hobs is cooler and quieter than one with six burners, which affects staff comfort and air-conditioning load.
- Precise low heat. Sauces and chocolate work are easier to hold without a bain-marie.
- No combustion products. No CO or NOx in the breathing zone, which matters in basements and in kitchens with limited make-up air.
- Cleaner surfaces. Flat glass is quicker to wipe than a burner well and cast-iron grate.
A mixed suite is common and practical: induction for the sauce section and pasta station, gas for the wok range and grill. The mistake is treating this as an ideological choice rather than a station-by-station one.
What changes when you export a gas or induction appliance?
This is where purchase decisions fail after the order is placed.
For gas appliances entering the EU, Regulation (EU) 2016/426 applies to domestic and non-domestic appliances burning gaseous fuels. It defines a gas family as a group of fuels with similar burning behaviour linked by a range of Wobbe indices, and a gas group as a specified Wobbe index range within that family. The regulation requires warning notices on the appliance and its packaging to state the type of gas to be used, the gas supply pressure, the appliance category and any restrictions on use.
In practice, that means a range built for one market may not be legal or safe in another, even where the physical connection fits. A buyer should specify:
| Requirement | What to state on the order |
|---|---|
| Gas family and group | Natural gas or LPG, and the group used in the destination market |
| Supply pressure | Nominal, minimum and maximum pressure at the appliance inlet, in mbar |
| Appliance category | The category marking that matches the destination market |
| Injector set | The nozzle set supplied for that gas, plus a spare set if the site may change supply |
| Marking and documents | Data plate, warning notices, declaration of conformity, installation manual in the destination language |
For induction appliances, the equivalent risks are electrical:
- Voltage and phase. A 3.5 kW hob at 230 V draws roughly 15 A; a suite of four will not run on a domestic single-phase supply.
- Plug and isolator standard. Schuko, British, Swiss and other plug types are not interchangeable, and hard-wired connection is normal above a few kilowatts.
- Earthing and residual current protection. Induction hobs are electronics with high inrush current; nuisance tripping is common where protection is undersized.
- Pan supply. Nothing to do with the appliance, everything to do with the outcome: the buyer must commit to ferromagnetic pans before the order, not after.
How does Zhongji Metal handle fuel choice?
Zhongji Metal has manufactured commercial kitchen and refrigeration equipment in Shandong, China since 2010, exporting to more than 130 countries. Our western kitchen cooking equipment range is quoted with the destination fuel and electrical specification stated on the order, not assumed from the factory default.
Three practical points from export work:
- Gas configurations are built to the order. Family, group, pressure and injector set are confirmed against the buyer’s written supply conditions, and the data plate is marked accordingly.
- Induction is quoted with the electrical schedule attached. Connected load, phase, voltage and isolator type are listed so the consulting engineer can size the supply before the equipment ships.
- The bench matters as much as the range. A gas range in a stainless steel suite needs the workbench and clearance dimensions to be agreed together, because the gas line and the flue path run behind and below the cooking line.
Send the menu, the station list, the destination market and the site’s gas and electrical supply, and we will quote the fuel configuration that matches them.
Frequently asked questions
Is induction cheaper to run than gas in a commercial kitchen?
It depends on the tariff ratio and the shift pattern. Efficient electric ovens reach about 76 per cent cooking energy efficiency against 49 per cent for gas under US programme criteria, so less energy is wasted, but electricity usually costs more per kWh. Calculate annual energy from rated input, hours and duty factor, then apply local prices.
Do I still need a ventilation hood with induction?
Yes. The hood captures grease and heat from the pans, not only combustion products. Induction reduces the sensible heat load in the kitchen, and it removes combustion products entirely, but cooking still produces effluent that a hood has to capture.
Can I use my existing pans on an induction range?
Only if the base is ferromagnetic. Cast iron and magnetic stainless steel work; aluminium, copper and many non-magnetic stainless pans do not, unless they have an induction-compatible sandwich base. Test with a magnet before committing to an induction suite.
What gas information do I need before ordering a gas range for export?
The gas family and group used in the destination market, the nominal, minimum and maximum supply pressure at the appliance inlet, and the appliance category marking required. EU rules also require the warning notices to state the gas type, pressure, category and any restrictions on use.
How much electrical capacity does a commercial induction range need?
Size the supply from the connected load, not the cooking surface. A single 3.5 kW hob at 230 V draws about 15 A, so a four-hob suite typically needs a dedicated three-phase supply. Confirm voltage, phase, plug or isolator standard and earthing with the electrical contractor before ordering.
Which is better for wok cooking?
A dedicated gas wok burner remains the reference for high-volume Asian cooking, because the flame wraps the round-bottom wok. Induction wok hobs are available and work well where the menu is lighter or the kitchen has no gas supply, but the pan shape and the power density matter more than on a flat hob.
Is a mixed gas and induction kitchen sensible?
Yes, and it is common. Induction suits sauce, pasta and precise low-heat work; gas suits woks, grills and charring. Specify station by station, and check that the gas service and electrical supply can carry both loads at the same time.
Sources
- US Environmental Protection Agency and US Department of Energy, ENERGY STAR Commercial Ovens — cooking energy efficiency and idle rate criteria: energystar.gov
- Regulation (EU) 2016/426 on appliances burning gaseous fuels — gas family, gas group, appliance category and marking requirements: eur-lex.europa.eu
- Lake County General Health District (Ohio), Facility Layout and Equipment Specifications — Plan Review (rev. March 2024), ventilation and hood requirements: lcghd.org
- NSF, Food Equipment Standards — NSF/ANSI 4, Commercial Cooking, Rethermalization and Powered Hot Food Holding Equipment: nsf.org
- US Food and Drug Administration, Food Code 2022 (10th edition, January 2023 version): fda.gov
Local codes vary; verify requirements with your authority having jurisdiction.
Author: China Zhongji Metal
WhatsApp: +86 190 5035 2733
Website: https://zhongjimetal.com
Alibaba.com: https://zhongjimetal.en.alibaba.com
