Calling all Atmosphericologist!!

[Boomyal]

Subject Dew and Dew point:

Ok, here is the deal, I am in the process of winterizing my boat. It recsides under a Costco carport tent, with lot's of air circulation, then under it's own Sunbrella full cover.

During our high humidity, cloudy, rainy winters the engine still gets soaking wet from condensation. I want to keep it dry using a timer controlled fan in the engine compartment (Doghouse slid back to allow more air circ)

I do not want the fan to run 24/7 so I am trying to determine how to set the timer to be the most effective in leaving the engine dry come morning. I think it is best to not even let the dew form in the first place.

Am I correct in assuming that once the dewpoint temperature is reached that dew will continue to form as long as the temperature stays below that point? If so, I would need to keep the fan running for many hours during the night.

Any opinions on this subject?

 

[Bob_VT]

Re: Calling all Atmosphericologist!!

Do not seal the tarps or covers down. You want ventilation just like your attic or basement. The air needs to move under and around. Once the temperature stabilizes you will get dew as frost and it will actually evaporate away.

I have a fan in my attic controlled by a temperature switch but it keeps the air flowing. Maybe you could rig up a thermostat to start and stop the fan.

 

[Gary H NC]

Re: Calling all Atmosphericologist!!

I wonder if a couple of those Damp Rid buckets from Wally world would work?
I used them last year in the middle of the boat and had zero mildew problem.
Stick some in the bilge.Would be an easy try.
Or an electric Dehumidifier with a drain hose out the transom drain?
Just some ideas Boom...

 

[v1_0]

Re: Calling all Atmosphericologist!!

I recently (about a month or two back) bought an attic fan that turned on at a set temp, but also when the humidity reaches a certain level.

It actually turned on once for the humidity, about a week ago or so - when we had a bunch of rain.

I got it from Lowes or Home depot - you could probably pick up a small one and rig it up somehow.

The thing about using a temperature is that the dewpoint involves both temperature and humidity...

-V

 

[BoatBuoy]

Re: Calling all Atmosphericologist!!

Am I correct in assuming that once the dewpoint temperature is reached that dew will continue to form as long as the temperature stays below that point? If so, I would need to keep the fan running for many hours during the night.

Any opinions on this subject?

A 100w light bulb in the engine compartment might help (incandescent, not CF). You shouldn't have to make it toasty warm, just enough to get the temp around the engine above dew point.

 

[JRJ]

Re: Calling all Atmosphericologist!!

I think you ought to get that shop built asap. Lift up the Sunbrella enough to get air circulation. Get an outboard. Bring the boat down here where the sun shines. I don't know, but good luck, and have a happy thanksgiving.

 

[Boomyal]

Re: Calling all Atmosphericologist!!

I think you ought to get that shop built asap. Lift up the Sunbrella enough to get air circulation. Get an outboard. Bring the boat down here where the sun shines. I don't know, but good luck, and have a happy thanksgiving.

Outboard is out of the question, I'm a 2 SBF kinda guy. As for the shop, it's on the schedule for next spring, that is if I survive the house reno. Don't think I could do Cali anymore, especially with a Governor that the list for the eighth most influential liberal. At least in WA, we know what we have! Besides that, with gas back over $3.00/gal, I don't think I could stand much of Shasta's $6.00/gal marina gas.

Yeah BB, I thought about the evil incandescent light bulb, but I just thought that the little fan would use less 'lectricity.

Gary, those things would probably work up in my bow storage where the life vests are wont to grow a black culture, I don't think they would work for dew condensation on my purdy engine. It won't stay purdy very long if it sits swathed in wet all winter.

v1, I've had one of those humongus roof mounted mushroom fans sitting in my garage for a couple of years now. Never got around to cutting a hole in the roof. Maybe I could rig a sail and drive the boat witht that thing.

Gary, those things would probably work well in my bow storage where my lifevests want to turn black, but I don't think they would keep my engine from bathing in condensation all winter. I'm trying to keep my engine purdy with the least energy cost.

 

[v1_0]

Re: Calling all Atmosphericologist!!

v1, I've had one of those humongus roof mounted mushroom fans sitting in my garage for a couple of years now. Never got around to cutting a hole in the roof. Maybe I could rig a sail and drive the boat witht that thing.

Might be easier to use it to make your boat a hybrid gas/electric.

Get rid of you outboard unit, replace it with a generator. Mount the fan to the back of your boat, wire it to the generator.

-V

 

[tommays]

Re: Calling all Atmosphericologist!!

In dealing with it all the time from pipes the ONLY thing that works is temp control

If the block is temp X and the Air is there it is goona happen



Tommays

 

[Joebklyn]

Re: Calling all Atmosphericologist!!

Here's a real cheap solution. Get a product called a "Goldenrod" it comes in various lengths. Then get a timer and your done. No problems here in damp New York.

 

[Scaaty]

Re: Calling all Atmosphericologist!!

Here's a real cheap solution. Get a product called a "Goldenrod" it comes in various lengths. Then get a timer and your done. No problems here in damp New York.

You are dragging up a year old thread from Nov 07..old Boomer took off after the new rules..

 

[Limited-Time]

Re: Calling all Atmosphericologist!!

Theres a blast from the past.........

 

[Frugal Floater]

Re: Calling all Atmosphericologist!!

Not to get all technical, but the air temp can never be lower than the dew point temperature...as the temp and dewpoint temp get closer, fog and condensation occur. You can get a turbo dryer/ dehumidifier from ebay for about 30 bucks that should do the trick...it is spark free, etc which is a bit safer than trying to rig something up yourself.

 

[Scaaty]

Re: Calling all Atmosphericologist!!

Not to get all technical, but the air temp can never be lower than the dew point temperature...as the temp and dewpoint temp get closer, fog and condensation occur. You can get a turbo dryer/ dehumidifier from ebay for about 30 bucks that should do the trick...it is spark free, etc which is a bit safer than trying to rig something up yourself.

THIS THREAD IS MONTHS OLD..BOOMER NOT EVEN HERE ANY MORE..asked the Mods to lock it...STOP replying ..

 

[Plainsman]

Re: Calling all Atmosphericologist!!

THIS THREAD IS MONTHS OLD..BOOMER NOT EVEN HERE ANY MORE..asked the Mods to lock it...STOP replying ..

So what if it's months old. Maybe it will help someone else out. Is that a problem with you? And who do you think you are you to tell folks to stop replying?

 

[waterinthefuel]

Re: Calling all Atmosphericologist!!

So what if it's months old. Maybe it will help someone else out. Is that a problem with you? And who do you think you are you to tell folks to stop replying?

My thoughts exactly. From what I've heard, the mods here REALLY don't like being told what to do. Quite frankly I'm shocked that scattys rude and unnecessary post was allowed to stay. That being said....

Boomer ain't as gone as he looks. Check his profile, last login: March 23, 2008. He said he would never return back in November of 2007, and he's already visited at least once in the past month and a half or so. He'll post again, in time. How am I so sure? Since logging in isn't required to view posts, I have a feeling he was checking to see if his account was still active to make sure he wasn't banned to deleted. It is necessary to login, however, if he wants to stay in contact with a handful of members via PM.

 

[thefairlaneman]

Re: Calling all Atmosphericologist!!

How about just bringing it and parking inside of my garage,,,,,,,,,no charge,,JUST LEAVE THE KEYS

 

[Scaaty]

Re: Calling all Atmosphericologist!!

Nothing to do with thread...

 

[Zetman]

Re: Calling all Atmosphericologist!!

Boom gone bummer no wonder he did'nt respond to my IM rats

 

[waterinthefuel]

Re: Calling all Atmosphericologist!!

Nothing here either