Originally Posted by wickedrevs56
As stated above, if it is that cold inside the RV do you really want to be there??? You may experience some freezing of waste tanks, but some units blow a little heat into the basement area from the cabin heater.
This may depend on your destination.
I have stayed in Yosemite in December twice.
The first time was in a backpacking tent, pitched on top on 4 inches of snow. I do not know what the the overnight low was, but it definitely was below 15F. By dawn it was pretty cold so we go up and stood around the revived campfire.
The second time was in a 28 foot Southwind MH, also in December. We had some trouble starting the generator in the mornings but otherwise all was well.
Yosemite in December through February is a great place to be.
The interesting part for me was that my 4wd truck did a little slipping and sliding on the ice on the loop roads in the campground. The MH just crushed through the 2 inch layer of ice.
When camping in cold weather always leave a wet wash cloth outside on the picnic table. In the morning it makes a nice Frisbee, for awhile.