1 - Is your underbelly enclosed?
If so, you should be OK with heat on. Maybe leave a faucet trickling.
If not, disconnect and drain hoses and lines (low point drains) until morning (turn off water heater if you drain everything)
Keep RV antifreeze in your tanks so they don't freeze
2 - Will you have full hook-ups?
Is so, see above and leave grey tank valve open so your tank doesn't fill up over night
If no sewer hook-up, see above
3 - Enjoy your weekend
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"PT Crew Members Since 9/2010"
2011 RAM 2500 HD 6.7L CTD Crew
2014 Prime Time Sanibel 3250