About two years ago I started reading and learning how to build a new home that was energy efficient. One of my frequent stops to ask and learn was here at the forums. We have been in the new house about four months now. It is in Nashville. The three full months to heat the 3700 s.f. single story house is $330. Last November was well below average temps. I had the energy star guy come by to test the house, it was 92.9. Thanks again!