Look for things to indicate that your coach may have been made for cold climates. Do you have double pane windows? Is you wet basement compartment insulated? 50 amp service?
We spend most of our traveling time during the Winter and have never had a problem, even in below zero temps. It does take some caution and preparation to do it but we have been doing it for several years and have learned what works and what doesn't. We very seldom use our gas furnace and rely on electric heat to take care of our needs.