Solar Vent on a head hatch.

Aug 10, 2013
52
Catalina 36 MKII 1721 New London Crockers Boat Yard
I would like to install a solar vent on my head hatch. Is it possible to drill the hole using a hole saw with out cracking the lenses? I have a new hole saw bit. Plan on masking tape the lenses and going slowly with the drill. Does anybody have any tips?
 
Jul 7, 2004
8,497
Hunter 30T Cheney, KS
How did it go? I've been thinking of adding a second one. The head hatch would be about right. A PO installed one thru the forward hatch and it came out fine, although it's old and should be replaced.
 

jviss

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Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
A bit off-thread, but wondering: what is people's long-term satisfaction level with solar vents?

When I bought my boat it had two, in both main overhead hatches. They were ugly and no longer worked. I replaced the NiCd batteries in them, still nothing. I read up on them, there was no longer any support from the manufacturer, and folks had gone to great lengths refurbishing them with quite a dose of MacGyver. I ended up replacing the Lewmar hatch lids at a cost of about $900. Now I have beautiful, clear hatch lids! So, my long-term satisfaction with them is very low.

I would be more interested in servos that would keep my Dorade cowls pointed into the wind! (We're on a mooring and the direction of the boat is determined by the current in the river, not the wind.)
 
Jul 7, 2004
8,497
Hunter 30T Cheney, KS
Speaking for myself, it's the only cabin ventilation we have when we close her up. And it's still hot whenever we come out. I run a tiny dehumidifier that doesn't help. Also the refrigeration runs .
 

jviss

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Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
Speaking for myself, it's the only cabin ventilation we have when we close her up. And it's still hot whenever we come out. I run a tiny dehumidifier that doesn't help. Also the refrigeration runs .
Are the fridge and dehumidifier condensers exhausted to the outside air, or into the cabin?

I'm fortunate that I have four Dorades that work pretty well.
 
Jul 7, 2004
8,497
Hunter 30T Cheney, KS
Are the fridge and dehumidifier condensers exhausted to the outside air, or into the cabin?

I'm fortunate that I have four Dorades that work pretty well.
Inside. Dorades look great on a classic boat.
 
May 24, 2004
7,185
CC 30 South Florida
Only if you never venture offshore. Borrowed an h34 which had some vents installed by the front cabin hatch and we had some unsettled weather approaching Cape May and buried the bow under a swell and had Niagara Falls inside the cabin.
 

jviss

.
Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
Only if you never venture offshore. Borrowed an h34 which had some vents installed by the front cabin hatch and we had some unsettled weather approaching Cape May and buried the bow under a swell and had Niagara Falls inside the cabin.
The solar vents I had on my boat had a way of closing them.
 
Nov 26, 2012
1,654
C&C 40-2 Berkeley
A bit off-thread, but wondering: what is people's long-term satisfaction level with solar vents?

When I bought my boat it had two, in both main overhead hatches. They were ugly and no longer worked. I replaced the NiCd batteries in them, still nothing. I read up on them, there was no longer any support from the manufacturer, and folks had gone to great lengths refurbishing them with quite a dose of MacGyver. I ended up replacing the Lewmar hatch lids at a cost of about $900. Now I have beautiful, clear hatch lids! So, my long-term satisfaction with them is very low.

I would be more interested in servos that would keep my Dorade cowls pointed into the wind! (We're on a mooring and the direction of the boat is determined by the current in the river, not the wind.)
Th Nicro solar vents are overpriced crap. Really cheaply made and they do not last vey long. Not many other choices out there.
 

19thol

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May 2, 2014
111
Hunter 30 St.Petersburg, Fl
I got a couple on Amazon, work very well, and were pretty inexpensive.
 

Mr Fox

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Aug 31, 2017
204
Marshall 22 Portland, ME
I’ve had 2 Nicro solar day and night fans, first one was original to my ‘82 boat, still going strong when I replaced it 2 years ago with a newer model (early version could not close, new one does). New one works perfectly but I put a higher capacity battery in it (mine sits about 2 feet below the boom, in shadow for a lot of the day). Runs non stop 24/7 even when cloudy for days on end. I close the fan when it’s snotty out, taken waves over the bow no leaks.

Not sure why people say they are bad, I haven’t seen any competitors model that’s nearly as good. Whether you want passive vs active ventilation is another issue.
 
Aug 10, 2013
52
Catalina 36 MKII 1721 New London Crockers Boat Yard
I would like to install a solar vent on my head hatch. Is it possible to drill the hole using a hole saw with out cracking the lenses? I have a new hole saw bit. Plan on masking tape the lenses and going slowly with the drill. Does anybody have any tips?
I install the vent today. No issues. I followed the advice to tape of the lense, both top and bottom. Drilled in reverse, allowed the bit to work. Seems as it took a while to drill through , it successfully worked. Thank all for the advice.


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