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Catalina/Capri 25/250 Sailor's Forums

General Sailing Forum

Gotta cool it down

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britinusa
Web Editor

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USA
5404 Posts

Initially Posted - 06/27/2005 : 08:10:46

We have to find a way to cool the cabin of our C250WB while at anchor. Any ideas. even better venting would assist as long as it keeps the bugs out.

Joint Decision. (Sold)
PO C250WB 2005 Sail # 841.

Moved up to C34 Eximius

Updated August 2015

Edited by - on

ClamBeach
Master Marine Consultant

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3072 Posts

Response Posted - 06/27/2005 : 09:59:59

Lots of cruisers in tropical areas rig 'boat tents' to keep the sun off the cabin. These can be anything from custom-fitted canvas covers to plastic tarps and bungee cord. A key factor in 'desing' is having plenty of air space between the cover and the boat deck.

Another popular technique is rigging a wind scoop to the forward hatch... and if you're in freshwater you could set up a 'mister' (fine water spray) to a 12V pump. Periodically hosing down the deck with water will also be very effective in cooling things down.

Inside the cabin, plenty of 12 volt battery-powered fans are essential... keep the air moving.

Edited by - on

cathluk
Admiral

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USA
513 Posts

Response Posted - 06/27/2005 : 16:34:12

A tarp over the hatch to keep the sun out does wonders. I also like the wind-scoop & a fan inside to move the air around.

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Auburn80
1st Mate

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60 Posts

Response Posted - 06/27/2005 : 17:58:57

I also vote for max shade and air movement. I do understand the bug problem so screens over hatches are probably a must. Unfortunately, that cuts down on air flow so fans inside help take care of that. Do you have an inverter and hefty batteries? Most 110 VAC fans are quieter, move air better and don't draw a whole lot. Problem is they are kinda bulky. We have a cheap oscillating fan that really helps at the dock (no inverter yet) during the summer here in the South.

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Tom Potter
Master Marine Consultant

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USA
1913 Posts

Response Posted - 06/27/2005 : 18:43:26

I have a Shade Tarp that zips to the Bimini and runs foward of the coach hatch, It makes a world of difference in keeping the inside cooler.

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Gloss
Master Marine Consultant

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USA
1916 Posts

Response Posted - 06/27/2005 : 18:53:49

I have rigged up a heavy duty silver tarp as an awning over the boom. Bought it at Northern tool. Interior 12 volt hella fans only draw .1 amp (verified by my digital ampmeter).
Cool beverages are always a help.

Edited by - on

Gloss
Master Marine Consultant

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USA
1916 Posts

Response Posted - 06/27/2005 : 18:55:05

Hey Tom,
I justnoticed that you have an anchor riding sail. I just got one, and am amazed at just how effective they are in eliminating anchor swing.

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Leon Sisson
Master Marine Consultant

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USA
1893 Posts

Response Posted - 06/27/2005 : 19:05:16

Speaking of efficient 12V fans, the "muffin fans" used to cool computers are very quiet and efficient. They come in sizes from a couple inches up to 6" or more. Now available with festive colored LED lights!

-- Leon Sisson

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Tom Potter
Master Marine Consultant

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USA
1913 Posts

Response Posted - 06/27/2005 : 19:15:09

I bought one of the Sailrite kits and the wife did the sewing, easy to make. I'm impressed with it.

Edited by - on

Oscar
Master Marine Consultant

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USA
2030 Posts

Response Posted - 06/27/2005 : 23:53:06

I put a Mermaid M5 water cooled A/C in a 250...dig around it's in the archives here somewhere....the M5 is designed to run on shorepower or 400A worth of Golf Cart Batteries and a 2000W inverter for ten hours....

$$$$ but 110F-72F in 6 minutes......

Edited by - Oscar on 06/27/2005 23:53:43

Ken L
Deckhand

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6 Posts

Response Posted - 06/28/2005 : 03:13:55

This is a link with some great pictures of an AC being installed in a Hunter 26. I think this is the same AC that Oscar installed in his C25

Ken

http://www.sailboatowners.com/upload/display.tpl?folder=73186545147&fno=17

Edited by - on

britinusa
Web Editor

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USA
5404 Posts

Response Posted - 06/28/2005 : 07:00:51

Frank, I think the fans are a helpful solution to moving the air.
I just bought one of those hella fans, (on sale at WM) I'll buy a couple more thanks to your note on the amperage.
The tent over the cabin would cool it down, will have to find a zipper that matches the ones on the bimini.
Screens on the fwd hatch are a must. I researched some wind chutes, several types found, will check them out. I saw another post with a shade over the bow...

Found the Swampy AC, but their website sucks (they need a copywriter big time) so I couldn't make out if the unit works or not (the copy is that bad) it seems to say that the devices are not much good in high humidity (high! we sweat enough to raise the humidity past 100%

The upside to all the effort I put into preping, sailing, derigging, the boat is the workout. I re-hydrate lots, but still lose a few pounds over the weekend.

Edited by - on

cathluk
Admiral

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USA
513 Posts

Response Posted - 07/04/2005 : 20:23:43

We have a windscoop which is very effective at getting any wind around down your front hatch & a fan to move it through the boat. A tarp rigged over the boom to provide shade really helps minimize the heat in the boat. That said, in August when its 95 degrees with 95% humidity we usually go back to the dock & crank up the cruise-air on shore power.

Edited by - on

britinusa
Web Editor

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USA
5404 Posts

Response Posted - 07/04/2005 : 21:27:19

We spent two nights on Joint Decision this weekend in Biscayne Bay.
The aft berth was just tooooo hot.
During the next couple of weeks I'm going improve the fwd V-Berth so that it'll allow me to stretch out my 6'. Two new Hella Fans will go next to the lights as someone else did on the forum, (look good and seem to be in an ideal position to keep the fwd berth cool(er)

But I did add a screen to the front hatch..

<center>

A small hole allows the Hatch Support to pass through the sreen.

Bungees (my favorite accessory) hold it in place and even allow the hatch to close almost completely.</center>

Edited by - on

thaind
Navigator

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Canada
145 Posts

Response Posted - 07/04/2005 : 22:30:12

The PO of my boat purchased a boom tent that covers the boat from hatch to stern. It does a wonderful job of providing cooler quarters at anchor.

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