venting the head area to the outside?

[centerline]

what type of systems are there for venting the head on a boat? what type of thru deck vents are there that are waterproof? im thinking a mushroom vent with a engine compartment blower attached to it, but I think there would be a more dedicated device than that available somewhere..... how is yours set up?

 

[kloudie1]

Have a little Bowmar hatch (about 9" by 9" ) and an opening port .. No power ventilation

 

[tkanzler]

I just cut a hole in the port lexan (or plexi) in the head and sandwiched a pair of round stainless passive vents with some window screen between them. Butyl tape to seal (small gap in the bottom on the exterior one, for drainage just in case). The interior one has the louvers aimed upward, basically as a continuation of the outside ones, in case a driving rain tries to sneak in.

I would have used square black plastic ones, which would blend in, but my local WM didn't have any in stock, and I wanted to git er done while I had the time, so I went with SS.

Just that little vent makes a big difference, as the air would just stand in there otherwise. The head door doesn't have louvers, but there's a large gap around most of it, which makes for plenty of room for air movement. At least as much open space as the louver has.

 

[THECUSCUS]

Could just install one of those solar vents directly over the head. I do all my mast work on the starboard side, thats why mine is on the port side, and I didn't want a tripping hazard there. Another option (when not under sail) is to put a battery operated fan in the forward hatchway. WM sells a fan (H20 Cool brand, large 8d-cell one) that fits nicely and securely between the hatch and the deck (the feet on the bottom fit in the drain gutter around the hatch).

 

[zeehag]

my formosa has a dorade box with cowl vent directly overhead....my ericson, i was planning, had i kept her, to add a solar vent over head...pun intended.
my ericson also has a sliding port that opens..my formosa has 2 port holes in there--one over the head and one in shower ..

 

[tailwind]

A solar powered fan has always kept my boat smelling fresh. It was installed over the head area and never was a cause for concern. It never leaked, even in the worst storms, on the water or at the dock.

 

[gettinthere]

we have a small overhead hatch in the head. I cut in a solar powered vent into the lexan

 

[Bob 04 H260]

I installed a solar powered vent in a Mac. It had a battery so the fan ran 24 hrs a day. It kept the whole boat fresh.
Bob