A couple of other things to consider:
- What will you do fro water
on the boat? Most marinas
shut off the dock water
to prevent freezing.
- What will you do for pump out?
- You will need to survey
all your plumbing
to see what's at risk of freezing. Even with your living space heated, you'll need to be sure all your pipes and fittings are inside the heating
- Does the marina leave dock
power turned on over the winter?
- Does the marina allow on-board space heaters? I know mine does not, and personally I'm glad for it. If someone overloads an extension cord and starts a fire, they will likely take out all of us, not just themselves.