Deck vents: intake or exhaust

[Randy6414]

Yesterday I replaced my aging deck vents with new Nicro Solar Day/Night 2000 vents which work beautifully. I have one in the foredeck hatch, and one on the cabin top. (The boat is a Catalina 27). My question: should I have one set for intake and one set for exhaust? Or both for exhaust? (There is a passive vent in the companionway hatchboard, which allows a lot of air to flow.) I want to minimize moisture and stale air to prevent mildew and musty smells.Randy

 

[Rick D]

One Each

nm

 

[Gord May]

or

One each or both exhaust. NOT both supply.

 

[NewportVic]

Both out if you have an open vent elsewhere ...

hot steamy air rises to the top ... best place to get rid of it.

 

[Tom s/v GAIA]

Both out.

is the best way to go.Toms/v GAIA

 

[Randy6414]

Thanks all

I have decided to run both vents in exhaust mode, since there is a large passive vent in my companionway hatch to allow fresh air to enter.Thanks for the advice.Randy