Re: TT vs 5th wheel

4-Season insulation package is really a 3 season insulation package. There are very few RVs that are true 4 season units. Maybe only 3 or 4. The "Arctic" package or whatever they want to call it usually amounts to minimal added insulation, tank heaters and a decal next to the door. Most of them are still barely adequate in temps below freezing.

B.O.