Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 21-12-2010, 22:26   #1
Registered User

Join Date: Sep 2010
Posts: 12
Drowning in the Northwest

Condensation, condensation how do you stay warm and dry in N.W.???
Im new to the N.W. I have a wood stove on my boat which puts out alot of dry air but doesnt seem to be enough? Is it wise to keep lockers closed or should they be open? Not sure if the warm air should be allowed into the storage area's or if they should stay cool???? Any suggestions?

SolaceinOly is offline   Reply With Quote
Old 21-12-2010, 23:00   #2
Senior Cruiser
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,736
Images: 122
It's best to keep the air moving and warmer then the outside. When it gets below 28º then it dries out a bit. But harder to keep the boat warm. If you have AC power try a small fan blowing on the stove.

This years' not too bad. But ya have a 6 more months of cold at night. June will be the last of the freezing spells.

You might want to consider a small propane burner with the 1# bottles for the really cold days/nights. Hopefully you have a co2 detector.


Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is online now   Reply With Quote
Old 23-12-2010, 00:32   #3
Registered User

Join Date: Sep 2010
Posts: 12

Thanks for the reply. I already have a fan blowing the warm stove air around and were staying warm, it's the condensation thats driving us crazy.
SolaceinOly is offline   Reply With Quote
Old 23-12-2010, 01:09   #4
Moderator Emeritus
hummingway's Avatar

Cruisers Forum Supporter

Join Date: Jan 2010
Location: Gabriola Island & Victoria, British Columbia
Boat: Cooper 416 Honeysuckle
Posts: 6,933
Images: 5
Do you have port'ls open? I find my boat does better when it isn't closed up. Not as warm I know but less moisture.
“We are the universe contemplating itself” - Carl Sagan

hummingway is offline   Reply With Quote
Old 28-12-2010, 11:33   #5
Registered User

Join Date: Jul 2008
Location: Vancouver Island
Boat: 27ft catalina
Posts: 492
ventilation is in my opinion the best way to remove condensation. i live on a small boat condensation is not a problem. i have my forward hatch always cracked open and dorade vents in the main cabin. i use small low power usage computer fans in the quarterberth and in the lockers. only place i get condensation now is under the vberth and to address that i just lift the mattress when i get out and prop it up for a couple of hours to let it dry out. not perfect but works for me.
michaelmrc is offline   Reply With Quote
Old 28-12-2010, 13:18   #6
Registered User
Islander's Avatar

Join Date: Jan 2008
Posts: 166
We don't live aboard but I leave a small electric (Peltier) dehumidifier running on a timer (2-3 hours per day) and it keeps the boat dry in Seattle. I would put one in each cabin if I lived aboard, they're small and fairly quiet. I can't remember the name of the model I have, but if you search online one of the first to come up also runs on DC, nice option to have.

Islander is offline   Reply With Quote
Old 28-12-2010, 14:34   #7
Registered User
Kashmir cat's Avatar

Join Date: Mar 2010
Boat: Prout 46
Posts: 160
My wife and I lived aboard in the PNW for three hard winters. The only thing that kept our boat dry was a de-humidifier. I bought the smallest one Sears sold and it removed a gallon or two of water a day. It was loud and it was big, but it beat the mildew and saved the interior of the boat. I have the same unit running continually on our boat in Florida.
Kashmir cat is offline   Reply With Quote
Old 28-12-2010, 15:25   #8
Registered User
GeoPowers's Avatar

Join Date: Dec 2008
Location: Gulfport, MS
Boat: Beneteau 393
Posts: 947
Images: 27
If you're in Everett stop by my boat and I'll give you the .05 cent tour of what works for us! Barring that, it all comes down to heat, dehumidification, and ventilation as said in other threads.

GeoPowers is offline   Reply With Quote
Old 28-12-2010, 15:40   #9
Registered User

Join Date: Jan 2010
Location: Port Ludlow Wa
Boat: Makela,Ingrid38,Idora
Posts: 2,025
Lightbulb Winter

I agree with all that is posted above and would only add...keep water out in the first place. So far this winter I have almost no condensation. I use an electric radiator and two fans. I keep the engine space open which allows fore and aft ventilation. I do get some condensation on pilothouse windows and ports.

IdoraKeeper is offline   Reply With Quote
Old 28-12-2010, 15:59   #10
Registered User
cburger's Avatar

Join Date: May 2006
Location: Nyack, NY
Boat: Westsail 32
Posts: 1,575
Images: 1
having the boat well insulated
cburger is offline   Reply With Quote
Old 28-12-2010, 17:41   #11
Registered User

Join Date: Feb 2008
Location: Whidbey Island
Boat: Bluewater Ingrid 38 Ketch- September
Posts: 76
Hi Solaceinoly,
There is a great little paperback kicking around called "The warm, dry boat". The author is all about airflow being the key and studies ventilation paths by watching cigar smoke as he changes ports and hatch openings. I do the same with an incense stick and can see big differences with small changes. You can get an exhaust flow from a hatch with the open edge to leeward in a vee berth, and an intake from a port near the stove (we use a diesel heater) that draws warm, dry air through the cabin. Good luck!
jrogers is offline   Reply With Quote
Old 28-12-2010, 19:03   #12
CF Adviser
Intentional Drifter's Avatar

Cruisers Forum Supporter

Join Date: Apr 2006
Location: Pac NW
Boat: Boatless, for now, Cat enthusiast
Posts: 1,285
In addition to what has already been mentioned (ventilation, dehumidifier), we found that it also helps to be aware of those activities that add a lot of humidity and try and control those, at the time.

Cooking with propane adds a lot, as does showers. In our boat, it is hard to control the propane related humidity, but we found that if we closed the door into the head and opened a hatch when taking a shower, that reduced the amount of humidity getting into the rest of the boat.

But, just breathing adds humidity. The best overall control mechanism we found was the dehumidifier. We found a pretty quiet one at Home Depot that could be plumbed into an overboard discharge.

Intentional Drifter

Observations are gold; hypotheses, silver; and conclusions, bronze.

Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote.--Ben Franklin

Everyone is entitled to their own opinion, but not their own facts.--Daniel Patrick Moynihan
Intentional Drifter is offline   Reply With Quote
Old 30-12-2010, 11:50   #13
Registered User
HappySeagull's Avatar

Join Date: Dec 2010
Location: B.C.,Canada
Boat: 29'
Posts: 2,396
Hello from BC Canada. cburger is you know,warm air evaporates and holds moisture.This air is cooled on uninsulated surfaces and releases it's moisture. The wood stove was a very good idea...Nothing beats a wood stove. I'm assuming you have a fg boat?If it has a liner,I expect the following might be more difficult...but perhaps it's possible to glue carpet to un-insulated surfaces when weather permits.Especially decks and all cabin sides and the hull down to slightly below the waterline-I wouldn't insulate further below the waterline-certainly not into bilges. Temporarily,maybe use a heat-gluegun?or something in a caulking tube but test it so it'll come off of fg easily when you get weather for a better job My own fg boat is sprayfoamed but where it isn't,I've contact-cemented carpet and it works well.I like it better than the spray foam.
HappySeagull is offline   Reply With Quote
Old 02-01-2011, 19:12   #14
Registered User

Join Date: Jul 2009
Posts: 774
Warm, dry air produced by hot water heat (not warm air) circulating throughout the boat with fresh air. Wabasto or Espar, BTU at least 2X length of boat IE, 45' boat = 90000 BTU. Keep the bilge dry.

Seahunter is offline   Reply With Quote
Old 03-01-2011, 07:36   #15
Registered User
gtmopat1's Avatar

Join Date: Dec 2004
Location: Chesapeake Bay
Boat: 40 Schucker 'Marguerite'
Posts: 19
Send a message via AIM to gtmopat1
I added an exhaust vent which exhausts into my engine room (from reverse cycle system). I also use spot heating with ceramic block type heaters. While the reverse cycle heat exchanger is not effective with the colder water temps the vent fan does succeed in circulating small amounts of heated salon/berthing air into the engine room space. This air then slowly migrates forward in the bilge spaces until it gets to the pointy end of the boat and then filters up into the head where there are some open vents under the sink. Only condensation is on hull to water fiberglass below the deck level which just makes its way back to the bilge. Also condensation is removed at reverse cycle unit and drained to bilge. It doesn't take a lot of moving air in the engine room to make this work. Thanks
Pat B
s/v Marguerite

gtmopat1 is offline   Reply With Quote

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Drowning: TV vs Reality mbianka Health, Safety & Related Gear 17 21-12-2010 15:45
HELP! I'm drowning... FloFar General Sailing Forum 2 27-03-2009 15:59
Hello from the Pacific Northwest! SweetSurrender Meets & Greets 9 28-12-2008 23:57
Really Taking the plunge...or possibly drowning myself...we'll see drew.ward Liveaboard's Forum 6 15-06-2008 06:45
Boating Safety: Drowning Greatest Danger CaptainK Health, Safety & Related Gear 8 27-06-2007 02:38

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 07:34.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.