[travelin texans]

Just FYI, "Zero Plus", "Artic" or "Polar" package means there's a covering over the trailer bottom, usually coroplast that has very little insulating effect, plus a small furnace duct blowing into that covered bottom provided you're using the furnace. Those catchy names for particular rvs are no more insulated, no more suited for cold weather than any other rv in their particular price range & none are going to be toasty warm in temps at or below 0 degrees.