Thankfully no frozen pipes here this morning. I left all the kitchen sink cupboard and bathroom vanity doors open last night.
It's 5 degrees here right now with a -11 chill factor. Coldest temps here since I moved to GA in '85!!
My 2 yr old hi-efficient Trane hasn't stopped running since about 6pm last night. I even heard it go into higher speed turbo mode a couple times.