I am going to buy an electric freestanding oven, looking around most appliances have a max kw use of 10-11. If my electrician has said I have to find one under 9.5kw (41amps) Can I purchase a cooker over 9.5 kw ? or does it not really matter? ( i do a lot of cooking and don't want the breaker to go all the time) I have been given conflicting information so trying to clear it up! thank you.