Suggestion
I'm bringing the boat to Europe where the voltage is 220v.
Here's some info: 110v uses heavier cable than 220v (i.e. 110v requires twice the current of 220v for the same power) so wiring is not an issue.
So far I have considered changing out the calorifier element and that most battery chargers are dual voltage anyway and sockets can be changed.
I'm looking for information. i.e.
how many ring circuit (breakers) does a Hunter Legend 45 have? Are there separate circuits for the sockets and the domestics
Other then the Air Conditioning and Fridge, is there any other system I have forgotten.
My 49 runs from 220. It is excellent, because the airco, water heater, are 220.
The way my boat is wired is with an isolation transformer.
By changing taps, I can run the boat from 220, 208, or 120.
When I go cruising, I leave my 50 A cord at home, as there is no place on Lake Ontario I can get 220 on a dock.
So, I use a single 120v 30amp feed. If course I'm limited to 1/2 my loads, but I don't care.
If you are going to Europe, just stick an isolation transformer on your boat and run it in step down mode. Nothing to change on board that way.
One small issue.
All you outlets inside will be 120, so you can't plug in 220v which you would buy locally.
If you really want 220 interior outlets, split the service before the transformer, and run a dedicated leg to a 220 sub panel