The Crossroads site states you have upgraded insulation and heated tank pads.
The specifc temperature you can camp is not stated. This was not offered the year I bought my 300BH a few years ago and the package wasn't offered, so can't speak to what you can expect. If your in Colarado, I'd imagine camping in the 30-40's is safe. The problem with these ultralights is when it gets colder, the walls tend to sweat inside. Water=bad for laminate
You might want to call customer service for specifcs on how low the outside temp can be when you can camp.
2017 Ford F350 Super Duty 6.7 King Ranch Crew
2016 Crossroads Sunset Trail Grand Reserve 32BH