But, on a single-phase service, using 240 volts for any load will keep it balanced. I have never confirmed this, but I was told by an old-timer (a former boss) that typical electric meters register the load on higher-usage leg as what's billable, even if the other leg has less load. If what he said is true, then wiring as many 240 volt circuits as possible will be the most efficient.
He always said "using a neutral is throwing money into the ground". Wonder if he might have been right?
