What Switching to Induction Means for Your Wiring
You've stood in the showroom and watched a pot of water boil faster than you thought possible. The induction cooktop is picked, the old gas burners are on borrowed time, and you're ready to make the switch. Then the salesperson mentions you'll need an electrician. Here's the part most people don't hear until later: the cooktop is the easy bit. A smooth induction cooktop installation comes down to the circuit behind the bench and the switchboard feeding it.
- Less energy used NSW Climate and Energy Action says induction uses up to 30% less energy than gas or traditional electric stoves.
- It usually needs its own circuit Many induction cooktops need a dedicated high-power circuit back to the switchboard.
- The board may need work If there's no room for that circuit, the switchboard may need upgrading first.
- Two trades on the day A licensed electrician connects the cooktop, and a licensed gasfitter safely disconnects the gas.
- Check before you buy Knowing what your wiring can handle helps you choose the right cooktop the first time.
None of this should put you off. For plenty of kitchens, the switch is a straightforward job once the electrical side is planned. Whether your Castle Hill home has an older kitchen with gas or a newer one already wired for electric, the first step is a quick look at your switchboard.
Can You Just Swap the Cooktop Over?
Sometimes, but not often. If your kitchen already has an electric cooktop on a properly rated circuit, a new induction cooktop may connect to it with little extra work. If you're coming from gas, there's usually no suitable circuit there at all, because a gas cooktop often needs nothing more than a powerpoint for its igniters. That means a new cable from the switchboard to the kitchen, sized for the cooktop you're buying. And if the switchboard is old or full, it may need work before that circuit can go in. The cooktop's installation manual tells you what it needs, and an electrician can tell you whether your home already has it.
Replacing an electric cooktop
If the existing circuit is rated for the new cooktop, the swap can be simple. Check the cooktop's power rating against your circuit before you buy.
Coming from gas
Expect a new dedicated circuit from the switchboard, plus a gasfitter to disconnect the gas. Plan it with both trades before the old cooktop comes out.
Burning smell or tripping after install
A cooktop that trips the power or smells of burning plastic isn't right. Switch it off at the switchboard, stop using it and get it checked. If there's smoke or fire, call 000.
Signs Your Kitchen Needs Electrical Work First
Before you order the cooktop, look for these. Each one means there's work to plan before installation day.
Gas Cooktop on a Powerpoint
A gas cooktop plugged into an ordinary powerpoint means there's no circuit ready for induction yet.
Full or Old Switchboard
No spare space, or old ceramic fuses, usually means the board needs attention before a high-power circuit can be added.
Big Loads Already Running
Ducted air con, an electric oven and an electric hot water system all draw from the same supply. Your electrician will check there's room for one more.
Buying Before Checking
Ordering the cooktop first and checking the wiring later is the classic mistake. The cooktop's specifications decide the circuit it needs.
Units and Townhouses
Why Induction Needs More From Your Wiring
An induction cooktop heats the pan directly using a magnetic field, which is why it's so fast and efficient. But to do that with several burners going at once, it can draw far more power than most other appliances in the kitchen. A gas cooktop draws almost none, so kitchens built around gas were never wired for that kind of load. Put a high-power cooktop on a circuit that wasn't designed for it and you get tripping, hot cables or worse. That's why manufacturers specify the circuit their cooktop needs, and why NSW requires a licensed electrician to install it.
1
High power draw
Several burners at once need a circuit sized for the load.
2
Kitchens built for gas
There's often no suitable circuit at the cooktop at all.
3
Full switchboard
No space means the board needs work before a new circuit fits.
4
Limited supply
Homes already running big loads may have less headroom.
5
Shared circuits
A cooktop on a shared circuit is likely to trip it.
How We Get Your Kitchen Ready for Induction
We check what your cooktop needs, what your home can supply, and sort out the gap before installation day, so the new cooktop works from the very first meal.
Step 01
Check the Cooktop and the Board
We look at the cooktop's power rating, your switchboard and what's already running in the home. That tells us whether you need a new circuit, a board upgrade or just a simple connection.
What we look for
Run the Dedicated Circuit
- The power rating of your chosen cooktop
- Space and capacity on the switchboard
- A clean cable route to the kitchen
Step 02
Run the Dedicated Circuit
Where it's needed, we run a new circuit from the switchboard to the kitchen, sized for your cooktop and protected by a safety switch.
Step 03
Connect and Test
We connect the cooktop, test every zone at full power and check the circuit and safety switch. You get a Certificate of Compliance for Electrical Work (CCEW) for the job.
- Dedicated circuit
- Cooktop connected
- Tested at full power
Method matched to cause
The Gas Side Is a Different Trade
Disconnecting and capping the gas must be done by a licensed gasfitter. We'll tell you exactly when they need to come, so the two jobs fit together without leaving you without a cooktop for long.
Induction cooktop installation
Dedicated circuits- Switchboard upgrades
- Safety checks
What Shapes the Cost
The cooktop itself is only part of the price. What changes the electrical cost most is whether a suitable circuit already exists, how far the switchboard is from the kitchen, and whether the board needs work first.
What You Can Do Before We Arrive
Grab the specifications for the cooktop you like, especially its power rating and any circuit requirements in the installation manual. Open the meter box and take a photo of your switchboard, and note whether your current cooktop is gas or electric. If you're buying new pots, check they're induction-compatible: a magnet that sticks firmly to the base is a good sign.
Safe to try yourself
- Test your safety switch first
- Check every lead and plug for damage
- Use outdoor-rated lights outside only
- Fully unwind extension leads
Time to call a professional
- Running a new circuit to the kitchen
- Connecting the cooktop
- Disconnecting the gas, by a gasfitter
Any switchboard work
Plan the Power, Then Enjoy the Cooking
Induction is fast, clean and uses less energy than gas, and plenty of people who make the switch never look back. The cooktop is the easy part. The planning that matters sits behind the bench: a circuit sized for the load and a switchboard with room for it. Get that checked before you buy, and installation day goes smoothly, with dinner on the new cooktop soon after.
Remember this
Check the switchboard before you buy the cooktop, not after.
Induction Cooktop FAQs
Do I need three-phase power for induction?
Usually not. Most homes can run an induction cooktop on single-phase power with the right dedicated circuit. If three-phase is recommended, ask why, as it's a bigger and more expensive change.
Can I plug an induction cooktop into a normal powerpoint?
Some smaller models are designed to plug in, but they run at lower power. Most full-size cooktops need to be hardwired by an electrician to a dedicated circuit.
Will I need new pots?
Only if your current ones aren't induction-compatible. If a fridge magnet sticks firmly to the base, the pot should work.
Is there any help with the cost?
The NSW Government's Home Energy Saver program offers eligible households zero-interest loans for energy upgrades, and induction cooktops may be included. Check current eligibility on the NSW Climate and Energy Action website.
Is induction safe with a pacemaker?
If you have a pacemaker or another medical implant, speak to your doctor before using an induction cooktop. Government buyers' guides recommend the same precaution.
Who disconnects the gas?
A licensed gasfitter. In NSW, gas work can't be done by an electrician or a handyman, so we'll help you line up the timing between the two trades.
Ready to Go Induction?
Positive Power Electrical can check your switchboard, run the right circuit and handle your induction cooktop installation from start to finish, working around your gasfitter so the switch is smooth. Faster cooking in your Castle Hill kitchen, and no surprises on the day.