I see you are looking for something that will handle extreme temperatures. That was one of the options we were looking for. In doing research I found 4 brands that offer that option. Artic Fox which are well made but pricey and limited access in this area. Jayco offers a package. Open Range's all come with that package and Dutchman Denali offers a extreme weather package. My research showed the Dutchman actually had more R factor than the Open Range. The Open Ranges are beautiful and have many nice options. I am a brochure collector at the show. I gather them in a sturdy bag that I can carry easily like a back pack and I pursue them over the winter. Also you will soon be able to spot the bunkhouses from the outside. Look for the smaller window. It will save you time going into units that you are not interested in. Hope this helps! Have a great time at the show!
