I'm looking for a trailer to move into. I live in the northeast so keeping warm, both myself and the trailer, is a fact of life. I'm looking in the 30' range. I have a 1/2 ton truck to pull it with. That leaves pretty light weight trailers as my option. I'm guessing that part of the weight reduction is things like any kind of insulation. Will I be able to keep systems from freezing even with tank heaters and constantly running heat of some kind in the unit itself or is that asking too much from a light weight trailer?