Some folk like having a water
heater, some don't see the need. Personal choice, methinks. We didn't need one while in The Sea of Cortez
; we were happy to have one while in New Zealand
We like having the engine heat option on our water
heater as it means hot showers after pulling into an anchorage, or the first evening after getting underway, basically free of effort. And once a month the diesel
needs running anyway. The rest of the time our wind/solar/inverter setup runs the 110v heat option as needed.
We live aboard 24/7 and seldom tie off at a marina.* Well, we did tie up for three months in New Zealand
but didn't connect to shore power
. No need.
When we bought he, our boat had an aluminum
box water heater that started leaking some years later. There was no galvanic isolator
installed and the previous owner had a permanent dock
slip with shore power
. Not good. Put up with the leak until our budget
a new stainless steel
*Note: Mazatlan doesn't count - for us, that place was the twilight zone.