Don't know Blaine, we built the house new 10 years ago, pond 3 years ago and put geo March08. We keep the thermostat at 72 constant. 2500 living area, two people, nothing connected to the house electrically that is out of the normal (washer/dryer/fridge, the like). Not unless the neighbor has a line coming to the house and stealing electricity (just kidding). \:\) Seriously, all the calculations for determining heating and cooling capacity were done beforehand; quite a lot of work (i believe this even had to be submitted back to the State for the geo rebate money)...I may have a copy of it.

Yesterday, when the tech spoke with the electric company, the electric company was out within an hour to put in the larger transformer. What I don't understand is why this wasn't part of the front end test to "force a failure" (i.e. dimming of lights) and the transformer issue would have been caught back in March.
You know that is bad on motors etc.