It is better to keep the outside unit running in cold weather to keep the refrigerant moving and the oil lubrication warmer. It isn’t going to save much money by keeping the compressor running instead of using the expensive electric backup heat, but it can save the compressor.
http://www.heatpro.info heat/cool right-sizing
The Senate and House can not find a suitable health plan for the nation; they should open their own exclusive health plan booklet and start reading.