There are actually some stoves out there that can use two phases for one large pot, reaching 7.2kW. For example, Miele stoves with the "PowerFlex" feature do th

There are actually some stoves out there that can use two phases for one large pot, reaching 7.2kW. For example, Miele stoves with the "PowerFlex" feature do this (that is quite the big brain name given the context). Since it is possible to do for two phases, why wouldn't it also work for 3? More power!