Helena Handcart:
The "cheaper" induction hobs come with a 13A plug and are limited in firmware to 3KW total power and you cannot change this limitation.
This means that if you use just one "ring" then you can use the full 3KW on it to boil a pan of water. However if you turn that ring down to say 1KW to simmer it, and now want to boil another pan of water on another ring then the second pan will be limited to 2KW. Many people fail to realise this limitation at the cheaper end of the induction hob market - that you cannot use all the 4 rings full or even half blast at the same time - just the one.
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