|For anyone out there who has attempted to improve ventilation in the cabin (and otherwise) of their 27 ... what have you done and how successful do you feel your efforts were?
I'm speaking in terms of a Mark III here ... I'm not sure if the factory setup for prior versions differed at all. Also I'm interested in solutions that improve airflow while the boat is alongside, unattended, as well as when it's in use.
1. Replaced the stock Vetus ventilator forward of the mast with a powered ventilator? (like a Nicro Day & Night solar)
2. Left the Vetus in place and added a powered ventilator elsewhere? ... and if so where?
3. Added dorade vents?
4. Replaced the fixed ports with opening ports?
5. Added ventilation grills to the various storage compartments under the settees and V-berth? (to help ventilate the bilge to reduce potential for blister formation)
6. Other ideas?
My initial thought was to replace the Vetus with a solar vent. I was thinking however that another potential location would be just forward of the companionway sprayhood. That would be close to the highest point of the cabin and, if set to exhaust, would exhaust hot air and promote drawing outside air in from the existing vent forward. I don't see any benefit to adding a vent in the forward hatch ... besides being, IMHO, but-ugly, I think it would just short-circuit air movement from the existing vent. The only thing with the location forward of the sprayhood is I'm pretty sure the camber of the cabin top would require that I make up a trim ring.
I'm also probably going to add a couple cabin fans. Not sure where the best locations would be though. I do have a framed screen that fits into the companionway and one that velcros to the inside of the forward hatch and these really help with keeping things well ventilated when alongside or at anchor overnight.
1979 C&C 27 MkIII, Hull No. 780
North Saanich, BC