[chockwald]

As many of you know we're heading up to Spokane, WA for Thanksgiving at my sister's home. I haven't traveled in sub freezing temperatures for days on end before in the Newell. Once we get north of Salt Lake City, UT we'll be seeing overnight temps in the teens and 20's. Should I leave the block warmer on all night (assuming I'm plugged in somewhere, which I do plan to be)? I'll, obviously, have the water bay heater on at night, and during the day when needed. We'll be traveling I-15 up to I-90 and then west on I-90 to Spokane. The temps will get cold in Idaho, and north. We'll probably be overnighting near Idaho Falls one night, and then Missoula, MT (hoping to stop and meet Jennifer and her coach), and then for 4-5 days in Spokane at my sister's home. we'll have at least 50amp available in Idaho Falls (will stay at an RV park), and then 15amp in Missoula (if we plug in at Jennifer's home as she has offered) and Spokane. Is 15 amp enough to run the electric heaters I have, or will I need to run the gas furnaces to keep power draw down? I would think the block heater and other electric heaters would draw a lot of amps.