Originally Posted by alpha99
You're not seriously considering this are you????
My thoughts exactly. I spent last winter in northern oklahoma. I have a 2005 tiffin allegro bus. Coldest weather we saw was -6 degrees. I did not enjoy being in a class A in that weather. at -20 to -40 degrees I do not think Class A motor homes have enough insulation to cover that. At -6 we would have went through our tank of propane in about a week. We went to electric heaters and they would keep it warm until about +10 degrees after that it was propane heat. With the electric heaters and temps were below zero only for about three weeks. I had to fill my propane up once a month. Keeping in mind also that sometimes during the day temps got up in the 30s and the heat pumps would work at that temp. We also had silver insulation up over all the windows especially the front window. Driving you would not have that. I put an electric heater in the wet bay area and that did a good job of keeping that area warm. When driving that heater would have to be fastened down or it will either tip over and shut off or tip over and be a fire hazard.
One poster that mentioned propane is right on the money I would think. I have had that freeze up on my propane tank at my stick and brick house when the temps were about zero. If any moisture in that tank at all cold air from the wind blowing in while driving and -20 to -40 degree temps would be a strong possibility for the regulator freezing which means no propane and no heat. At those temps no heat is not an option.
Diesels do not like cold temps you would have to make sure to get a very good non gel additive and keep it in every time you add diesel. Batteries do not like cold weather either. Even if you do not have problems with the propane you will have to have power to light the furnaces and for the blowers. Your diesel could literally be the difference between life and death. YOu need to make sure it is running correctly. If the thor is a gas unit then make sure you have plenty of gas line antifreeze in the tank and again make sure you have your generator completely gone over before strarting to make sure it is in perfect condition.
I personally think this is a huge risk and not just monetary risk.
The first time I was in alaska I was in fairbanks the first week of november. I was visiting a friend and everyone I was introduced to kept telling me how luck I was there during a warm season. It got to +10 degrees in the day and -20 at night and they thought it was warm.