"Matt Lang" wrote in message
om...

Can this be
a simple fan or would that just add sparks from electrics and blow
everything up?

As others have said, you may not need ventilation for your particular boat.
But, if you decide to be anal and install it anyway, you CANNOT use just any
old fan. Consult a boat supply company - it has to be a blower made for the
purpose. This assumes that you don't like spontaneous barbeques, with you as
the main course.