So to reiterate, if you can, rent a 100 gallon tank from your local supplier. They should both connect it for you and keep it filled over the winter. You can ask your RV park mates what they do and who they use. If you can, blanket that tank...you could also wrap it with thermostatically controlled heat tape under the blanket (and some people use whatever low cost thermal blankets they can find). This is because propane will actually
gain BTUs when it's warmed up, which makes it last longer.
Still outside, forget any hose wrappings and that sort of thing for water and just use your on board water tank. Keep a hose inside the RV so it's flexible and when necessary, run out, connect it to the parks water, fill your tank, drain the hose, bring it back in. May have to put a 100 watt standard light bulb in the water tank basement compartment to keep it warmish but you can probably find a mechanics light assembly at a thrift shop for a buck or two. The black and grey tanks are left connected all the time with the hoses supported...no dips, but the valves are left closed until you need to dump. Dump once a week if it's just you. Don't take as many showers. Don't wash dishes as much, maybe get paper or plastic dishes. And take the Navy kind of shower (wet, water off, wash, rinse, done).
Still outside, skirting if you can. Maybe even bails of hay. If you can, add light bulb heaters to any basement compartments that might need it...especially the wet bays. Most people that are overwintering wrap the grey and black drain valves & some of the pipe with heat tape. Very good idea to prevent them freezing closed. Disaster if they do.
Inside, get some blue foam insulation sheets and cut them to block off the front of the RV. That huge window up front really sucks the heat out of the RV. Further back, add layers of plastic to the windows so you have multiple panes. Or, get that pillow type sheets of insulation that has an aluminum side and small air bubble side, it's about 1/4" thick. You can cut it to fit every window. And it can be removed easily so you can look out at the snow occasionally.
Every night, open any cabinet under sinks. Turn off the water pump whenever it's unused (just a habit to learn) and when you're in bed turn it off and open a faucet or two. Also the showers faucets.
If you don't already have one, get a small electrical element for your water heater (goes in the tanks drain hole)...really saves on propane and keeps your water tank and area around it warm so it won't freeze. Plus gives you hot water. You can run an extension cord to it if necessary.
Also get those 14" vent pillows for your vents mentioned before, or make your own.
Finally, get an electric blanket for your bed. Best purchase ever. I found one at a thrift shop for $7 about 5 years ago. Still have it. Works great.
It's already mid-September and I'm running my furnace occasionally up here in Burns so you probably know you don't have much time to scrounge the thrift stores for stuff.
Good luck and happy wintering!
