portable heater or de-humidifier? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 11-27-2007
nightowle's Avatar
Senior Member
 
Join Date: Aug 2006
Posts: 227
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 9
nightowle is on a distinguished road
portable heater or de-humidifier?

Now that it's getting colder here in Seattle, dampness is ready to set in. Am I better to get a heater or dehumidifier that I'll use on shore power in order to reduce mold, etc? I was thinking of using a Davis Air Dryer. http://shop.sailnet.com/product_info...keywords=Davis
Right now I just have some of the 'pellet' products that pull some moisture from the air. I'd like to get some opinions on this subject.
Thanks
__________________
________
S/V Don't Panic!
O'Day 27
Seattle, WA

“Navigare necesse est, vivere non est necesse” To Sail is vital, to live is not.
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 11-27-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Are you going to be using the boat, or living aboard the boat? If not, then the best way to get rid of humidity and prevent mold is to ventilate the boat well and to use a big package or several smaller ones of DampRid, or something similar.

Electrical heaters are one of the biggest causes of fires on boats, and unless you're living aboard, or sailing the boat regularly, leaving a heater on long-term is a rather risky proposition IMHO.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 11-27-2007
Senior Member
 
Join Date: Aug 2007
Posts: 306
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
thekeip is on a distinguished road
I leave light bulbs on during cold winter nights...25w up fwd, and 40w in maim cabin....
Sometimes I use a 'Gold-Rod' under the engine and leave it on at night. It's rated 12w or so and seems to keep the bilge dry. I'm not sure it's doing anything, really, but make me more comfortable.
Howard Heiper
Sea Quest
Berkeley
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 11-27-2007
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 15,005
Thanks: 81
Thanked 223 Times in 215 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
We use a small dehumidifier similar to the one you mention, and do notice the improvement inside the boat. However we were told to keep a little heat on too otherwise the cooling plate in the dehumidifier will freeze and it will stop working.

I check the boat regularly - twice a week at least, and leave the heater on "warm" rather than the hotter settings... keeps the boat at around 12 - 14C when it gets close to 0C outside. The reservoir in the dehumidifier gathers about half a liter(quart) in a week of soggy west coast weather.

Overall we're quite happy with this arrangement. SD is correct in the need for ventilation, so if security concerns allow, leaving a hatch cracked somewhere helps keep the air moving. We have also, in the past, hung a couple of computer "muffin" fans to move air around.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 11-27-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
The solar ventilators, like the Nicros, are pretty good at getting/keeping the air moving in and out as well.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 11-27-2007
Valiente's Avatar
Senior Member
 
Join Date: Jun 2006
Location: Toronto
Posts: 5,491
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
Valiente has a spectacular aura about Valiente has a spectacular aura about
A diesel bulkhead heater on low is surprisingly good at drawing the damp, inside air and sending it out the chimney. The key is circulation...if you draw in even damp air, your breath will make it damper still unless you can vent it positively out.

I have recommended the book "The Warm Dry Boat" before. As it was written by a guy living in B.C., its advice should be applicable.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 11-27-2007
TAK's Avatar
TAK TAK is offline
Senior Member
 
Join Date: Jul 2003
Posts: 189
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
TAK is on a distinguished road
I was discussing this topic with a dock neighbor who has run 24/7 during the winter for several years a pair of West Marine portable heaters at the low setting (see below..)

They are a low profile so tipping over does not seem an issue and they have a switch that turns on if the temp falls below 38 degrees.

Was wondering if any one else has used them?


http://www.westmarine.com/webapp/wcs...2&classNum=743 )
__________________
s/v Mahalo
Caliber #4065

ACM - Eastport MD
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 11-27-2007
JohnRPollard's Avatar
Moderator
 
Join Date: Mar 2007
Location: Chesapeake
Posts: 5,680
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 10
JohnRPollard is a jewel in the rough JohnRPollard is a jewel in the rough JohnRPollard is a jewel in the rough
Quote:
Originally Posted by TAK View Post
I was discussing this topic with a dock neighbor who has run 24/7 during the winter for several years a pair of West Marine portable heaters at the low setting (see below..)

They are a low profile so tipping over does not seem an issue and they have a switch that turns on if the temp falls below 38 degrees.

Was wondering if any one else has used them?
We've been using that heater for about 8 years and have found it to be reliable. However, we only use it when we're aboard and attached to shore power -- I would worry about leaving any electric heater unattended for long periods. It does a fair job of taking the chill off in the cabin of our 31 footer, but not nearly as good a job as our Dickinson Newport P9000 propane fireplace.
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 11-27-2007
Senior Member
 
Join Date: Aug 2006
Location: Anacortes, WA
Posts: 297
Thanks: 6
Thanked 0 Times in 0 Posts
Rep Power: 9
dave6330 is on a distinguished road
We just vent the boat with the solar vents and a mushroom vent on the forward hatch when we're not on board. The only thing running off of shore power when we're not "camping out" on board is the battery charger. We have one of the small electric heaters we use up front and an Espar forced air heater to keep things cozy when we're on the boat and (knock on wood), we've had no problems with dampness. When we leave the boat, we prop up the cushions from the v-berth (where we sleep) and open all the cupboards to allow venting. There's always water in the bilge, but we have a keel stepped mast and the couple of inches of bilge water is fresh, so I don't worry about it (much).
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 11-27-2007
nightowle's Avatar
Senior Member
 
Join Date: Aug 2006
Posts: 227
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 9
nightowle is on a distinguished road
Good advice and suggestions so far. I am not sleeping on the boat and will use it infrequently during the winter, although I check on the boat about once a week. I have been keeping a 100 watt bulb on connected to shore power and have a couple of the small dry-eze tubs. I was thinking about also using a small fan I have to move the air, but was concerned about the safety of that.
__________________
________
S/V Don't Panic!
O'Day 27
Seattle, WA

“Navigare necesse est, vivere non est necesse” To Sail is vital, to live is not.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Diesel Heater Carboning SV_WholeHeart Living Aboard 8 10-27-2011 07:43 PM
winterize hot water heater? saltypat Gear & Maintenance 6 10-26-2007 11:47 AM
installing duct system for diesel heater and air conditioner levenezia Gear & Maintenance 1 09-25-2004 03:20 AM
Water Heater By Pass Valve MHRitter Gear & Maintenance 2 10-31-2002 09:41 AM
Onboard Heater Sue & Larry Gear and Maintenance Articles 0 10-15-2001 08:00 PM


All times are GMT -4. The time now is 06:06 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.