[drcoastline]

I can't think of a better place to come to for good ole' Mercan engineering and problem solving than here.

So I own a big old wooden boat which is subject to mold and dry rot if not looked after. While this boat is now sixty years old and does not have any major issues. Mold is ever present. Controlling humidity/moisture and adequate ventilation will greatly reduce the chances of mold growth. Humidity is controlled by the AC units and we have an onboard dehumidifier when necessary. There are areas deep in the bilge below the floors and water line that are stagnant. They have no air movement can have high temps when the engines or generator are running and don't get any relief from the AC systems or the dehumidifier. So I am going to devise a ventilation system to move air around down below.

I am looking for a medium to high volume in line exhaust fan, 12V, 36V or 110 power low noise that I can attach a flexible ductwork or PVC pipe to say 3" to either end. One end in the engine room the other out a port hole to exhaust the air. The fan will run 24/7 when the boat is not underway. The fan and most ductwork will be permanently mounted below the floor. The exhaust side of the duct work will be able to be disconnected and stored. the hatch closed when needed.

Any ideas on a fan?