Ventilators

[Killick69]

Looking for ideas/input from the knowledgeable forum members.

Night Cap has 2 mushroom vents. They are plastic and I find they don't stand up to the rigors of sailing and enjoying a boat. I close the vents when sailing etc and only open them when not active on board, however, they still get broken.
Does anyone have stainless mushroom vents, any good? One problem fitting s/s Mushroom vents such as Whitworths (page119) is that they are 85mm dia hole and existing hole is 100mm.
Alternatively I could fit Solar Powered Ventilators. How tough are they?. The Whitworths catalogue indicates 116-120mm tapered cut out. I could manage the increase (and tapered at that) cutout with a jig saw. If one inadvertently stood on one of these, what is the likely outcome.......any experiences???

What about cowl vents etc?

John

[Brainless]

The Stainless Solar Vents from Bias/Whitworths are very hard and greatly increase the airflow in the cabin allowing for fresh air to circulate all the time(have one as an intake and one as an exhaust)

On Oberon they were fitted using a 120mm Holesaw with a block of wood made (using 100mm holesaw) used as a guide, the hole was then epoxy'd to seal up all the exposed edges and the vents fitted

I also found the didnt tend to catch lines as easy

[PinotNoir]

Hi Ryan,
I like the look of these vents, how have they held up since you made this post?

[lockie]

I have a cowl vent (WW catalog, bottom of page 137) fitted to the forehatch. On the mooring, I insert Into this a 12V computer fan screwed to a PVC flange fitting from Bunnings (almost the right diameter, helped by a few wraps of gaffer tape). With the cowl facing the stern, and a 1cm gap at the top of the companionway washboard, this creates a small but steady air flow through the boat. The fan consumes 100mA, (2.4Ah per day) and it keeps the cabin smelling fresh.

Cheers, Graeme