[JohnBPrice]

I've never seen one, but I believe the center section is a cross such that it catches wind from all directions.

 

[PGandW]

The Plastimo wind scoop is allegedly omnidirectional.

https://www.tradeinn.com/waveinn/en/plastimo-ventilating-sail/136655403/p?id_producte=5984731&country=us&gclsrc=aw.ds

I'm unable to locate the product on the Plastimo web site. In the linked to product description, there is no claim to being omni-directional. And looking at the wind scoop, it isn't.

Fred W

 

[GlanRock]

I ordered the "Breeze Bandit ALL Direction Wind" from cruisingsolutions.com after doing a little research and thinking about the ever changing wind.

After reading the subsequent comments I'm glad I did. Now I just hope it works as expected. I'll take all the advice I can use and report back over the next few weeks. We are moving aboard before the end of the month!

Thank you all for the invaluable insights!

 

[GlanRock]

You could also attack your elevated core temperature from the inside as well. Maybe a cold adult beverage?

Swinging on and anchor or mooring rather than in a slip makes the air circulation much better on my boat.

I do love to cool my core with beverages! During a workday its frowned upon but nothing stopping us at night before bed.

We are only in a slip when we're in our own slip, or about to be hauled out/in, otherwise we always anchor. We will likely be in or near our slip over the coming weeks simply because we have 'land plans' in the schedule until some time in May.

 

[GlanRock]

Same. It’s a mystery of life I have no expectation of solving.

I wish I was exaggerating when I say that she'll open up windows in 30-40 degree nights. I wake up and close 'em!

 

[JohnBPrice]

I'm unable to locate the product on the Plastimo web site. In the linked to product description, there is no claim to being omni-directional. And looking at the wind scoop, it isn't.

Fred W

I've never seen one, but the review I saw says it is. It looks like the same design as the Breeze Bandit.

"The Plastimo wind scoop is omnidirectional, which makes it somewhat unique in the industry. That means that this wind scoop will efficiently funnel air down into the forward hatch regardless of what direction the wind is blowing."

Best Wind Scoops: How to Use Them Properly

Wind scoops are an excellent passive ventilation tool for use at anchor or when moored at the dock. The best wind scoops are the Plastimo Ventilated Sail, the Dorcap Hatch Vent, the Breeze Booster Hatch Ventilator, the Breeze Booster Port Ventilator, and the Breeze Bandit Hatch Ventilator. In...

www.lifeofsailing.com

Also West Marine, but discontinued. Maybe they no longer make it.

Sites-WestMarine-Site

West Marine

www.westmarine.com

Also there is this guy who made his own.

 

[OntarioTheLake]

I've never seen one, but the review I saw says it is. It looks like the same design as the Breeze Bandit.

"The Plastimo wind scoop is omnidirectional, which makes it somewhat unique in the industry. That means that this wind scoop will efficiently funnel air down into the forward hatch regardless of what direction the wind is blowing."

Best Wind Scoops: How to Use Them Properly

Wind scoops are an excellent passive ventilation tool for use at anchor or when moored at the dock. The best wind scoops are the Plastimo Ventilated Sail, the Dorcap Hatch Vent, the Breeze Booster Hatch Ventilator, the Breeze Booster Port Ventilator, and the Breeze Bandit Hatch Ventilator. In...

www.lifeofsailing.com

Also there is this guy who made his own.

what a joke. Might as well hang a bedsheet.

Note too, securing or dropping through the hatch means no screens.

 

[ziradog_9755]

what a joke. Might as well hang a bedsheet.

Note too, securing or dropping through the hatch means no screens.

It also means that the heavy dew that accumulates through the night will drip on you the V-bearth where you are sleeping. Don't ask how I know.

 

[pdqaltair]

Re. Aft cabins, it not so much trying to ram air into a forward hatch as extracting it with an aft, aft-facing hatch. Also, the location of the hatches can be critical. Is it is a low-pressure area or a high pressure area? The front of a cabin wall may be high pressure, but the roof just behind that may be low pressure. The flow disturbed by deck edges or gear on deck? Particularly before cutting holes, snoop the area with a hand held anemometer. I wrote an article based on testing in the wind for PS 2-3 years ago. Very location-specific.

And don't forget bugs and the ability to close it without getting out of bed (even on hot nights it tends to get cool in the wee hours).

 

[OntarioTheLake]

Re. Aft cabins,

That's a whole new subject. I'd bet that there are threads on this. Darned aft cabins with no airflow. Forward hatch blasts air down, but it doesn't get to the aft cabin. Ours is quite open into the salon, and has three ports, but no significant airflow ever gets back there. The fans help, but it's not like having a blast of cool air on your face. I will admit, I am wholly hesitant to start cutting through liner and cockpit seating to add a hatch. Surely, the manufacturers know that aft cabins have no airflow, but elect not to improve on that- and people buy the boats anyway.

 

[Minnewaska]

Dorades may be a solution here. However, the amount of airflow may not be sufficient for this query. Has anyone ever rigged a fan into a dorade?

 

[GlanRock]

We love our aft cabin however the air flow is a problem. The air flow streams in from the hatches through the boat but doesn't quite seem to exit through the aft hatches in a discernible way whether the companionway is open or closed. I definitely feel air flow through the companionway if its open, but strangely standing the doorway to aft I can only barely feel much movement.
I've been searching for 12V hatch fans to blow outward. I'll have the spring to see if some sort of RV Roof Vent might do the trick. Found these on eBay:
14" Manual 12V Air/Rain Roof Vent Hatch Fan
RV Roof Vent Fan 14 inch Reversible with Rain Cover Power Top Lid

Our aft cabin actually already has a pair of large hatches that already have covers built in as part of the cockpit seating. Thinking I might be able to drop something like this in.

 

[kellysails]

+++ For Breeze Bandit. We spend two months of the year in Canada, mostly at anchor. Breeze Bandit has worked flawlessly. We place high value on this item.

 

[Barquito]

Re. Aft cabins, it not so much trying to ram air into a forward hatch as extracting it with an aft, aft-facing hatch. Also, the location of the hatches can be critical. Is it is a low-pressure area or a high pressure area? The front of a cabin wall may be high pressure, but the roof just behind that may be low pressure. The flow disturbed by deck edges or gear on deck? Particularly before cutting holes, snoop the area with a hand held anemometer. I wrote an article based on testing in the wind for PS 2-3 years ago. Very location-specific.

And don't forget bugs and the ability to close it without getting out of bed (even on hot nights it tends to get cool in the wee hours).

Think having a dodger would help extract air through the main hatch? I was thinking opening into a larger space would produce an area of low pressure, compared to not having a dodger.

 

[GlanRock]

I will be able to provide my own experiences soon, we are moving aboard today. I'll report back to this thread for anyone who's interested.