Induction hob vs gas hob: costs, carbon, cooking and when to switch

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Switching from a gas hob to induction is one of the smaller electrification decisions in the home, but it is still worth understanding properly. Induction can be fast, controllable and cleaner at point of use, but the best choice depends on wiring, cookware, cooking habits, cost and whether the kitchen is already being upgraded.

For the wider home-energy picture, read our guides to home energy savings, home insulation and heat pumps vs gas boilers. Cooking is not usually the biggest household energy source, but it is part of the wider shift away from fossil fuels in homes.

The short answer

Induction is usually the better low-carbon direction because it uses electricity and transfers heat efficiently to the pan. Gas can be familiar and responsive, but it burns fossil fuel in the kitchen and loses more heat to the room. The switch is easiest during a kitchen upgrade or when a portable induction hob lets you test the cooking style before replacing the main hob.

How induction works

Induction hobs use electromagnetic fields to heat compatible pans directly. The hob surface itself is not heated in the same way as a ceramic electric hob, although it can become hot from the pan. This makes induction fast and controllable. It also means cookware has to be magnetic. If a magnet sticks firmly to the base, the pan is usually induction-compatible.

Gas vs induction comparison

Carbon and running costs

Gas and electricity prices change, and cooking is usually a smaller share of household energy than space heating or hot water. That means the carbon case for induction is often clearer than the short-term bill-saving case. Electricity is becoming lower carbon as the grid decarbonises, while gas combustion still produces direct emissions in the home.

However, do not oversell the switch. Replacing a working hob purely for carbon may not be the first priority if the household has poor insulation, an old heating system or high hot-water demand. Induction makes most sense when the hob is being replaced anyway, when kitchen ventilation is poor, or when the household wants to move away from gas gradually.

Should you buy portable or built-in first?

A portable induction hob is often the lowest-risk first step. It lets you test induction with one or two pans, understand heat control and check whether your household likes the cooking style. It is also useful for renters or people not yet ready for a kitchen refit.

A built-in induction hob makes more sense when the kitchen is already being upgraded, the electrical circuit is suitable, and you know most of your cookware is compatible. Built-in hobs can offer more zones, higher power and better integration, but the installation decision is more serious.

Cookware compatibility

The pan issue is the practical barrier many people notice first. Cast iron, many stainless steel pans and magnetic-base pans usually work. Aluminium, copper and some older stainless steel pans may not. Before buying a full pan set, test existing pans with a magnet. You may need fewer replacements than expected.

If you are testing induction, compare portable induction hobs, induction pan sets, induction frying pans and induction hob cleaning tools. For built-in hobs, check the electrical load before buying.

Specific induction products to compare

These product links are comparison starting points, not a single ranked verdict. Check power rating, plug type, pan size, safety features and warranty before buying. Last checked: May 2026.

Portable induction hobs

A portable induction hob can be a useful trial. It lets you test speed, pan compatibility and cooking style without committing to a full kitchen change. It can also reduce gas use for simple boiling, frying and simmering. But portable units have power limits and may not replace a full hob for every household.

Safety and ventilation

Induction removes the open flame and point-of-use gas combustion, but cooking still produces steam, grease and particulates depending on what is being cooked. Extract ventilation still matters. A cleaner hob does not mean no ventilation. Gas hobs especially should be used with effective ventilation because combustion and cooking both affect indoor air.

When not to switch yet

Do not switch if the existing hob is working well, budget is tight, the electrical circuit is unsuitable, or replacing cookware would create unnecessary waste. If a kitchen refit is planned soon, waiting may avoid duplicated installation costs.

Best switch pathway

1. Test existing pans with a magnet.
2. Try a portable induction hob if you are unsure.
3. Check electrical capacity before choosing a built-in model.
4. Plan ventilation, especially if changing the kitchen layout.
5. Replace cookware only where needed.
6. Recycle or donate usable old equipment responsibly.

Bottom line

Induction is a sensible direction for lower-carbon homes, especially during a kitchen upgrade. It is fast, efficient and avoids gas combustion at the hob. But the switch should be practical: check wiring, pans, budget and whether a portable unit is enough to start.

Induction hob FAQ

Is induction cheaper to run than gas?

Not always. Induction is more efficient at the hob, but electricity and gas prices differ. The total cost depends on unit rates, cooking habits, appliance efficiency and whether electricity is increasingly supplied by low-carbon sources. Check current energy rates rather than assuming one answer is always true.

Do I need new pans for induction?

Only if your current pans are not induction compatible. A simple magnet test is a good first screen: if a magnet sticks firmly to the base, the pan may work on induction. Pan base quality still matters, so test performance before replacing a full set.

Is a portable induction hob worth buying?

A portable induction hob is a low-commitment way to test induction cooking, reduce gas use for simple meals and avoid a full kitchen change. It is not always powerful or flexible enough to replace a built-in hob, but it can be a useful first step.

Is induction better for indoor air quality?

Induction avoids combustion at the hob, which is one reason many households prefer it. Cooking itself can still produce particles, steam and grease, so extraction and ventilation remain important. Switching from gas helps remove one source of indoor combustion, but it does not remove the need for a working extractor.

Useful source links

• Energy Saving Trust: home appliances
• Ofgem: energy price cap unit rates and standing charges
• HSE: domestic gas health and safety
• Heat pump vs gas boiler in 2026