I guess it depends if regulations have forced an upgrade of the wiring.<p>My mum&#x27;s house is from 1905, but had to be required when she bought it in 1980, and there&#x27;s no problem running everything in the kitchen at once, plus many portable heaters. We did this at Christmas a couple of years ago when the gas heating broke. I can&#x27;t remember ever tripping a breaker.<p>My apartment&#x27;s main breaker is rated to 50kW, with the oven and hob and laundry machines on 3-phase power, and several 230V 16A circuits for lights and sockets.