Reply
 
Thread Tools Display Modes
 
Old 03-29-2014, 08:35 PM   #1
Senior Member
 
drmnj's Avatar
 
City: Palm Beach Gardens, Florida
Country: USA
Join Date: Oct 2012
Posts: 147
Dehumidifier

Any recommendations on dehumidifiers for a 45' trawler would be appreciated.
__________________
Advertisement

drmnj is offline   Reply With Quote
Old 03-29-2014, 10:19 PM   #2
Senior Member
 
AussieCraig's Avatar
 
City: Fulton TX
Country: USA
Vessel Name: The Salty Swallow - named by wife
Vessel Model: Private builder - 50' Trawler
Join Date: May 2013
Posts: 179
Watching this with interest myself

I have a vessel about the same size and as I am only aboard once a month or so she smells musty when opened up...
__________________

__________________
Craig 'Aussie' White
'Not all who wander are lost...'

AussieCraig is offline   Reply With Quote
Old 03-29-2014, 10:57 PM   #3
TF Site Team
 
ksanders's Avatar
 
City: SEWARD ALASKA
Country: USA
Vessel Name: LISAS WAY
Vessel Model: BAYLINER 4788
Join Date: Feb 2011
Posts: 3,955
Ventilation is the key to a nice smelling boat.

Boats seal up tight, and most have no ventilation.

We live in mold, and condensation country, but using ventilation we have neither.
__________________
Kevin Sanders
Bayliner 4788
Seward, Alaska
www.mvlisasway.com
ksanders is offline   Reply With Quote
Old 03-29-2014, 11:36 PM   #4
Guru
 
Scary's Avatar
 
City: Walnut Grove Ca
Country: USA
Vessel Name: Cary'D Away
Vessel Model: Hatteras 48 LRC
Join Date: Apr 2012
Posts: 884
Fans lots of fans

Cheap to run and effective. If you have air conditioning running it will dry your air. Some units have a cycle for dehumidify by running for short duration automatically.
Scary is offline   Reply With Quote
Old 03-30-2014, 12:31 AM   #5
Guru
 
HopCar's Avatar


 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 3,505
I use a small dehumidifier that is about the size of a loaf of bread. It works on the Peltier Effect so the only moving part is the fan. I put a drain tube in the collection tank and let it drain into my galley sink. If I didn't put the drain tube in, I'd need to drain the tank every couple of days.
HopCar is offline   Reply With Quote
Old 03-30-2014, 02:13 AM   #6
Senior Member
 
City: Hong Kong
Country: Hong Kong
Join Date: Nov 2012
Posts: 210
how about some of the rechargeable silica containers, like this one:

900 Gram Rechargeable Silica Gel Dehumidifier

Best used in closed compartments like bilges and cabinets.
Searios is offline   Reply With Quote
Old 03-30-2014, 05:35 AM   #7
TF Site Team
 
Bay Pelican's Avatar
 
City: Chicago, IL
Country: USA
Vessel Name: Bay Pelican
Vessel Model: Krogen 42
Join Date: Oct 2007
Posts: 2,789
I use the Eva Dry unit pictured by Hop Car, works on both European and North American power. I drilled a hole in the tank for the water to drip out into a sink.
Previously used a larger marine dehumidifier made by JD Products. It was a stainless steel box without a tank. The marine dehumidifier was great except it would not work on 50 hertz.
__________________
Marty
Bay Pelican is online now   Reply With Quote
Old 03-30-2014, 07:53 AM   #8
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,529
Use a dehumidifier OR ventilate.

The choice is yours , but you cant do both together.

Leaving the kitchen door open in winter my father used to say,

you cant heat the universe.

Same with water removal, you cant get an acceptable level of dry with the windows open.

We use a wind powered rotating vent,in SW Florida
FF is offline   Reply With Quote
Old 03-30-2014, 08:18 AM   #9
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 5,738
on the Eva Dry EDV-2200 after adding the drain. The power supply also felt hot to me so when we leave the dehumidifier on, I put the PS on a cookie sheet.
Attached Thumbnails
Click image for larger version

Name:	109a.jpg
Views:	123
Size:	73.0 KB
ID:	28695  
Larry M is online now   Reply With Quote
Old 03-30-2014, 10:05 AM   #10
Guru
 
HopCar's Avatar


 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 3,505
LarryM, re the drain in your Eva Dry, Great Minds Think Alike. That's just what mine looks like.
HopCar is offline   Reply With Quote
Old 03-30-2014, 11:47 AM   #11
Guru
 
Steve's Avatar
 
City: Thibodaux, Louisiana
Country: USA
Vessel Name: Gumbo
Vessel Model: 2003 Monk 36
Join Date: Oct 2007
Posts: 3,607
I have used the one below for about 9 years it works well but is very heavy and bulky, we don't bring it while cruising. I may look at a couple of the Eva Dry units for the future. I could keep one in the aft head where the shower is and one in the galley year round.
Attached Thumbnails
Click image for larger version

Name:	Dehumidifier on Gumbo.jpg
Views:	116
Size:	121.0 KB
ID:	28696   Click image for larger version

Name:	Dehumidifier.jpg
Views:	120
Size:	59.5 KB
ID:	28697  
__________________
Steve W.
http://mvgumbo.blogspot.com/
Steve is offline   Reply With Quote
Old 03-30-2014, 11:48 AM   #12
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 5,738
Quote:
Originally Posted by HopCar View Post
LarryM, re the drain in your Eva Dry, Great Minds Think Alike. That's just what mine looks like.
Larry M is online now   Reply With Quote
Old 03-30-2014, 02:20 PM   #13
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,179
Will the Eva-Dry continue to operate with the water drawer removed? If so, could it just be placed in a sink?
__________________
Al

Custom Google Trawler Forum Search
FlyWright is offline   Reply With Quote
Old 03-30-2014, 02:28 PM   #14
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 5,738
Quote:
Originally Posted by FlyWright View Post
Will the Eva-Dry continue to operate with the water drawer removed?...
No. The water tank has to be installed.
Larry M is online now   Reply With Quote
Old 03-30-2014, 03:49 PM   #15
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,179
Quote:
Originally Posted by Larry M View Post
No. The water tank has to be installed.
Thanks!
__________________
Al

Custom Google Trawler Forum Search
FlyWright is offline   Reply With Quote
Old 03-30-2014, 04:17 PM   #16
Moderator Emeritus
 
jwnall's Avatar
 
City: St. Marks, Florida
Country: US
Vessel Name: Morgan
Vessel Model: Gulfstar 36
Join Date: Sep 2012
Posts: 3,621
Rainy season (hot and wet) on the way here, so this thread convinced me to order the Eva-Dry 2200. And great minds showed me a tip for putting in a drain tube! It was $79.60 on Amazon, including shipping. Might could have looked around a lot and perhaps found one a little bit cheaper, but that price is OK with me.
__________________
John
jwnall is offline   Reply With Quote
Old 03-30-2014, 11:06 PM   #17
Veteran Member
 
jstauffer's Avatar
 
City: Poulsbo, WA
Country: USA
Vessel Name: Serenus
Vessel Model: Tollycraft 44
Join Date: Mar 2011
Posts: 74
I purchased a dehumidifier from Home Depot this winter to have on our Tollycraft 44 here in the PNW. It seems to work pretty well. It is amazing how much water it produces. It seems to be pretty noisy, but I can't compare it to others. It has a normal and high settings and I wish it had a low setting. Even on normal it will usually get the humidity down to 35% in a few hours which is where it shuts down.
__________________
Jerry & Mona Stauffer
Serenus
Liberty Bay Marina
Poulsbo, WA
jstauffer is offline   Reply With Quote
Old 03-30-2014, 11:56 PM   #18
Guru
 
HopCar's Avatar


 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 3,505
Al, you could just drill a hole in the Eva Dry tank and sit the unit in the sink.
I just drilled a hole and stuck a piece of aquarium air hose in it. It is a tight enough fit that it doesn't leak. No hardware or sealant needed. I lead the hose directly to the sink drain.

Are you guys familiar with the Peltier Effect that these dehumidifiers use? It's pretty amazing.

Peltier effect (physics) -- Encyclopedia Britannica
HopCar is offline   Reply With Quote
Old 03-31-2014, 08:45 AM   #19
Moderator Emeritus
 
jwnall's Avatar
 
City: St. Marks, Florida
Country: US
Vessel Name: Morgan
Vessel Model: Gulfstar 36
Join Date: Sep 2012
Posts: 3,621
Just when you thought that there could not possibly be a question on TF that has not already been asked (many times), I will bet here is one:

For maximum efficiency, should a dehumidifier be put up high, or put down low? Or is the moisture in the air so evenly distributed that it doesn't make any difference?
__________________
John
jwnall is offline   Reply With Quote
Old 03-31-2014, 11:41 AM   #20
Guru
 
twistedtree's Avatar
 
City: Gloucester, MA
Country: USA
Join Date: Jan 2013
Posts: 3,196
Quote:
Originally Posted by jwnall View Post
Just when you thought that there could not possibly be a question on TF that has not already been asked (many times), I will bet here is one: For maximum efficiency, should a dehumidifier be put up high, or put down low? Or is the moisture in the air so evenly distributed that it doesn't make any difference?
I'll venture a thought on this. The same amount of water in the air indicates as higher relative humidity in cooler air. So rather than looking up or down, i'd try for the coolest location that works.
__________________

__________________
www.MVTanglewood.com
twistedtree is online now   Reply With Quote
Reply

Thread Tools
Display Modes

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





All times are GMT -5. The time now is 09:08 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012