Thanks for all the replies so far. A few of the replies talked about cabin
ventilation, and that has been one of my issues trying to research
ventilation. Most of it refers to venting the cabin
, especially when unattended.
In our case, it will be a liveaboard
, on the gulf coast
. So Cabin will have A/C going 8-9 months out of the year. So I am not looking for info on venting the cabin itself, just trying to see what would be best to keep the build from becoming a science experiment
Yes right now there are 4 vents, 2 facing forward, and 2 facing aft, about 10 feet apart, all with 4" ducts running to the bottom of the bilge
There are 2 separate 3" ducts running to louvers on the sides, that have the bilge
blowers in them for clearing fumes before starting.
I am sure the front two provide fresh air for engines when running as well, but I am guessing the design with the 2 facing aft is to provide passive ventilation when not running as well.
I am thinking that adding the solar
vents to the two aft ones, in exhaust
mode is probably my best option, that was they can draw fresh air in from the front vents down across the bilge and exhaust
it out, but while under way the two front vents will not not have any restrictions that will keep them from pulling in enough air to keep the engines happy.
Please keep the comments, and experiences coming.
No matter what I do I have to pull these vents up and beef up/repair the core
in those areas and then rebed them. "Surpisely" a couple tubes of 5200 around the vent over the years, instead of someone rebedding them properly, did not do the core
any favors in those areas, and they are a bit soft when my 375 pound farm fed frame goes up to the bow!