That's how circuits work normally...I have tried a single induction burner plugged into the wall and if too many appliances get used it pops the breaker, so the wall circuit is a no go
Kitchens are supposed to be wired with two circuits for countertop outlets. Each circuit is 120 volts at 20 amps. That is 2400 watts.
Most kitchen heat appliances are 1500 watts, because that is the hard limit for appliances with normal plugs. How good are you at math? You might have figured out that 1500 + 1500 is more than 2400. So 2 heat making appliances on the same circuit at the same time isn't supposed to be possible. That's why kitchens have 2 circuits.
Now some appliances like toasters and small electric burners are only 800-900 watts. Obviously that's so you can make toast while making coffee and just make it in the 2400W. But those are the exception not the rule. You need to look at the appliance nameplates and know your circuits.
If you want the flexibility to run anything and everythng without thinking, feel free to get some 12/2 Romex and run a separate circuit for each receptacle. You can still overload a receptacle by plugging two 1500W appliances into it, but that's only a 20% overload, and if you look at a breaker trip curve, they're rather tolerant of 20% overloads, so most likely you'll get away with it if it's only for a few minutes.
The only gotcha with this trick is each kitchen receptacle circuit counts as 1500 VA on your house's Load Calculation, so if you do upgrades in the future, an electrician is slightly more likely to tell you that you need a service upgrade.
It's absolutely compliant, it's to allow one range circuit to support cooktop and oven separates. It is the right way to do that thing.Yes, that is exactly what I was thinking. I'm glad to hear someone else thinks this isn't a crazy idea. If that is an arguably compliant setup, then it is probably the best option.
Because if they said "you need a 20A/240V circuit" most people would think they have to install a special circuit for it, and probably not buy it.I agree that it is ok to have an electric cooktop with the existing circuit for the dual fuel range. I never really understood why a standard size dual fuel range needed the same size power supply as an electric range, burners included.