Modular cooking appliance having a hot air oven with a built-in magnetron and a double duty heater

A cooking apparatus, comprising:

• a housing having a single power connection for receiving three-phase electrical power;
• a first oven contained within said housing, said first oven having a base load and at least one boost load;
• a second oven contained within said housing, said second oven having a base load and at least one boost load;
• a first multiplexor configured to direct electrical power from a first phase pair of said three-phase electrical power to said base load of said first oven or to said at least one boost load of said first oven;
• and
• a second multiplexor configured to direct electrical power from said first phase pair of said three-phase electrical power to said at least one boost load of said first oven;
• wherein said cooking apparatus is configured such that it can turn on said at least one boost load of said first oven using electrical power from said first phase pair regardless of whether electrical power from said first phase pair is being used to turn on said base load of said first oven.