Just wondering if the OP had attempted this so called 'winter trip' as November was a very snowy month and December was a very cold month here while never missed a day of work with the majority of daytime highs days ranged between -15 F to -40 F below for December....
I never left my house nor commuted anywhere in the past 9 days with temps ranging between -32 F below and -48 F below here in January, as my boss permitted me to stay at home until the temps improved....started out -43 to -46 last weekend and it was a brief -38 to -32 daytime high Monday and Tuesday as the temps had dropped worse between -42 to -48 since Wednesday as it is now Sunday and -41 F below as I am posting here....
It has been real nice not having to work out in the extreme cold for a change all week (first major -40 and colder coldspell for at least a week) as my job duties are having to work outside full time year round which I have done for the past 14 winters, don't get much of a break other than having to warm up in front of a space heater for short periods of time, as I already had to work in plenty of -20 to -36 below days this winter and it takes a toll on me now compared to my younger days....
Alaska had not had a major -40 below and colder one week or longer coldspell in three winters as during my residency here in the past going on 38 years now you would expect at least one major prolong coldspell in the interior practically every winter, as the 'average' number of -40 below or colder days per winter in the Fairbanks area was 12....a couple of winters I had not seen any -40, a few winters might be 2 to 3 days of -40, while other winters were 20 to 35 days of -40 below or colder....
There had been 14 days of temps reaching my house of -40 or colder already this winter, as there is so much massive cold pockets in the arctic this year on the super weather maps while the winds had been coming from the east (inland) which means it stays brutally cold....
I had done removed snow off my camper shell roof 5 times already this winter and it is only half way in the winter season here, and have tons of snow packed up against the house (my skirting) which helps keep the even bitter cold from reaching my water line and house pipes even though I have my pipes 100 percent insulated and heat tape on to my water tank and water line....
When it gets past -30 F below for a long period of time at my home it goes in survival mode as I rather be home during -40 F below and colder anyway in case of house emergencies (and had a few of those crisis too) as my house is a double wide addition of a old 1966 house trailer mobile home with only a forced air furnace, and everyone is spot on that posted all the what if's and what kind of energy it really takes to keep a RV or structure heated or functional in brutal extreme cold and hope nothing ever goes wrong....
The thing is : I have electric grid, a 500 gallon fuel tank, marginal insulated house, two Honda 2000 generators for power outage emergencies to keep warm, and two chords of seasoned birch and spruce logs to throw in Blaze King stove, my cabover camper is not for winter shelter for emergency....
As others noted, a typical RV is NOT ideal to camp in sub zero winter temps of the arctic, the best shelter for remote winter camping for that would be hauling a mini cabin on a trailer, one would be better off staying in their vehicle running it 24-7 to stay warm rather than in an RV....
I have yet to see anyone in Fairbanks ever make it thru the entire winter living in their RV other than giving up when it got real cold after a few days to ending up found dead from a gas leak, seen a few RV'rs make it in Wasilla and Anchorage as my friend has done it there in a class C saving some rent money but they are much milder temps but he is still asking for it when things do go wrong....
I even hate RV'ing in September and October here in the far north as it is cold at night and go into survival mode while sleeping in winter clothing, as it is the only time of year I am allowed anytime off that is not during winter season, (as my work does not allow anyone to have summertime off) and I never give up on a yearly RV trip....
If the OP's vehicle is not arctic winterized or does not know how to survive in the arctic winters when it gets sub zero for long periods along the Dempster Hwy. remote, all winter with no grid power, etc. - that is an area that does not have many resources for fuel and supplies at that, which is just plain suicide trying to stay all winter in some RV relying on some generator power, no matter how much you convert your RV for winter conditions and a hundred more scenarios that can go wrong that no one else has mentioned on their postings in emergency situations, and if there is no snow to build a snow cave to keep one warm at -10 below on a -40 below or colder day should the RV or truck not run to generate any heat, or have a health issue where you cannot do anything - especially without someone else present, last resort is to be rescued or die freezing....
Best time to winter RV in remote areas as many do here during bitter cold is during March and April as you get more daylight hours which does warm up some on certain times of the day in most cases, and ones that do RV during that time will not do so for more than a week span, only seen it get past -40 below in March once during 2007, for two and a half weeks - and never seen -30 below in April....
My furnace has been running 16.2 hours in a 24 hour period on average in the past 9 days on a .60 nozzle, which is roughly 10 gallons of fuel per day, so it is probably going to be $700 in fuel and $300 in electric during this month's projection - and with a remote bitter coldspell shacking up in some RV, it is going to cost at least that much a month IF you can find the resources on the Dempster (other than Eagle Plains and hope they do not run low or out of supplies when you need it) along with non stop constant work to stay warm and fix things on the fly (and that's if it can be fixed) and eventually get more food somewhere, and the road conditions are screwed up, and hope the vehicle always starts and doesn't have a mishap....
Other than commuting in an RV from a temporary point A to point B type scenario during the winter months in the far north, I would not dare to do an all winter remote trip like what the OP had posted their intentions, especially on the Dempster Hwy. region....
As others stated about the OP attempting to do an all winter remote trip like this in an RV, the colder it gets, the more you will not enjoy the experience in the many scenarios mentioned and not mentioned.
