[C320-list] Position of fans in the boat

[nibj]

Our model 320 has no fans onboard.  A hot Chesapeake evening has motivated me to change that.  But I am not sure where is the best place for the fans (or how many).  In particular where is a good place for the fan in the aft under cockpit berth?  I am thinking of one in the V-berth, one near the galley and one in the stern berth.  I guess I need a new fused power circuit?

Thanks
Peter 
Tangled #226