<prompt> Human: I set temp. in winter at 63 degrees. What is the best temp. to save the most money and still not freeze during the winter.  <response>: What is the most comfortable.. dont sacrifice comfort to save a few dollars; instead invest in better insulation for your home to keep down energy costsusage.Or turn off the heat altogether and fire up your early model PS3...that thing will heat a room in a matter of minutes. 