Other than Bigfoot...are there any other Class C's out there that can handle -20 F or a weee bit cooler without issues? Thanks for any help making this search a bit easier!
I've taken mine out in +10 degrees. I think most RV's are not that well insulated. The key is to make sure that you have multiple heat sources, use additional insulating products such as Reflectix in the windows and skylights, have 1 or more portable heaters and have some sleeping bags available that work in the negative temperature range. Also, iron oxide hand warmers make it a lot warmer under covers or within sleeping bags.