If you do not winterize the fresh water system, you will need to use a cabin
heater to keep the temperature above the freezing point in any area that the
fresh water system is located. They sell "boat heaters" for the engine area
and cabin.

http://www.westmarine.com/webapp/wcs...=10001&ref=123

"ed" wrote in message
...
I plan on wintering my 47' boat in the water next year in Ohio (sub
freezing
temperatures many days) . . . and will be on board most weekdays.

I am curious about what winterizing I might neet to do compared to when it
is put into storage. I would expect to be able to use the freshwater
system, etc.

Thanks.