65, it goes down to 63 at night. I have oil heat, last year we had a cold for the coast winter and I went through $2500 of heating oil. I do have a couple oil filled radiators that I use to supplement the heat in specific rooms.
I also hang a curtain at the top of the basement stairs (exh took down the door years ago) and a blanket hangs across the opening to the family room in cold weather. It keeps the room warmer when I watch TV. The layout does not allow for a door there.