I use a Vornado, very quit and thermostat control will easily warm more than a room very little power draw. About 75-100 depending on where you buy, can be bought on line
Couple of more things for dryer sheets, if you store your RV outside throw some sheets around inside the RV , keeps away some of the critters, such as mice, they don't like them. If you hate the smell of Deet in bug replents, rub a dryer sheet on you...
I have a triple axle fiver and I can tell you from my own experience it tows better with more stability than any two axle trailer I have ever had, with good tires ,have never had a tire problem, had lots of tire problems until I started using good ti...