Share your experiences with super-insulation?
We're looking for some on-the-gound wisdom about super insulated homes (heating, cooling, etc.) as we move toward building a 2,000 sq ft house in zone 4b with r-40 walls and r-60 in the roof. South, Southwest orientation.
We have looked at geothermal with radiant and are now exploring ductless mini-splits which seem to get good reviews.
House will have a good air exchange system and triple pane windows.