Always take what the dealer says with a major grain of salt of course, but mine was more honest than most. He was adamant that the thermal package does not turn your camper into a 4 season trailer. There is still enough exposed to break quite a few things... thinking outside shower, outside kitchen in my case, water tank drain. If you live where it gets below zero, I don't see how it's possible to use the trailer 'wet' without busting something major. Envious of a lot of you that live where it doesn't get so cold and 4 season camping is an option.
2016 27BHS Elite
2012 F-150 EcoBoost / Max Tow