Posted 10/18/2020 08:46 (#8551337 - in reply to #8551289) Subject: RE: Heating a office in an un-heated barn - electric is my only option what is the safest?
mn
I would second a mini split. Make sure it has an electric backup coil. This will provide both your heat and AC.
Don't bother turning it down overnight. It will take as much or more energy to heat it back up than to just leave it warm.