Well, just to chime in I actually looked at an rv, no less in Tucson Arizona that was purchased and owned in Alaska for many years before finding it's way to Southern Arizona. The entire underneath of the motorhome including holding tanks etc had at least 8-12 inches of professionally sprayed insulating foam installed, not to mention several heating pads installed on the diesel engine as well. The exterior walls on this mid grade rig were not as thick as those on my Monaco, so I am not sure how the interior fended in cold weather. Generally 2 inch foam walls cool down quickly and with single pane glass, that just makes the situation worse in extreme conditions, the interior glass fogs and is constantly wet unless you have great heating. Using gas to keep the rig warm would be impossible so electric radiator oil filled might help. The water source hook up will be an issue to unless you can keep it extremely short and use heat tape surrounded by rubber or neopreme sleeve over it as well. The sewer shouldn't be an issue as long as you keep the length to a minimum and have it supported with a bracket to flow extremly down toward the sewer entrance pipe. I have done some December runs when it dropped down to around 10 degrees and dry camped without any exterior protection but I filled both holding tanks with rv antifreeze to about a gallon each to keep what water that went into them from busting my tanks, all my water plumbing was within the interior space otherwise. Hope this helps
if you have a place to park with full hook ups it may be possible. You just have a lot of work to do to get the MH ready for the cold. a skirt around the open areas and lots of small heaters and electric tape around the water lines and heated tanks just to name a few things
Most private campgrounds are closed for the winter here in northern Michigan and ones that stay open shut off the water to sites but may have a bathhouse open for use. To heat a rv for the winter would be difficult on some models and way too expensive in my opinion. It gets down in the -20's often and below that sometimes.
2003 41' Newmar Mountain Aire
Blue Ox Brake Buddy
My Newmar is R16 in the roof and R11 in walls and floors. I don't know of any others that list the R factor but Triple E from Canada also makes a good RV that is insulated. Mobil Homes have used heated water lines for years so that is solved and so is the drain line. Any electric heater is not going to give as much heat as the LP furnace. Compare about 5600 BTU for 15 amp to 35-40000 BTU from the LP furnace. You will need a big LP tank.
2003 Newmar Mountain Aire, Workhorse W22, 2008 Saturn Vue, Falcon 5250, & US Gear Unified Tow Brake
Yes it can be done, but its really not worth it. I lived in an old 26 ft TT, In Prinevill, Oregon for an entire winter. Years ago when I worked in the Saw Mills. I did it because I worked 10 to 14 hours shifts, and it was a 132 mile round trip per day to go back and forth to work, on soild Ice all the way, both ways. Not to mention the Heavy Snow Storms also.
So I took our old TT to Prineville, and set it up to live in durning the week and then go home on the weekends.
There are a lot of things that you can do to make any RV a lot warmer with a lot of planning. The winter I did this, was one of the coldest winters on record. I spent over a month at temps down to -30 to -40+ Below Zero, and that is not counting any Wind Chill Factors.
I only had a couple of times, that my water line froze below the Grond level, not inside the TT itself. Talk about eating up Propane, and I didn't have a regular Forced Air RV Fruance, but a Radient Type, and two Electric Heaters.
Now I have also lived in Fairbanks, Alaska, for 3 years and I never felt as cold as I did in Prineville, Oregon. And I have seen lower temps in Faribanks, Alaska.
Well, to make a long story shorter, I have about 45+ years experience in Winter Time RV'ing, from TT's to 5'ers to Class A Motorhomes. We still believe that "Winter Time" is some of the Best Boon-Docking time there is.
A lot depends on just how much cold you want to put up with. To be honest, I would never, ever try to due those kind of Temps ever again. But anything is possible, if you know what you are doing, and you prepare for it properley.