If I could keep my TT heated, I would, but I cannot, so I do not.
My concern would be that winter power tends to be somewhat sketchy. I would make sure I had an effective EMS going. Either install one in the unit or I'd find a steel box in which I could enclose a portable unite and padlock. Then chain the box to the power pole/
2017 Forest River Sonoma 280RKS
2018 Silverado 2500 HD 6.0L, 4:10 rear