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post #51 of 110 Old 01-31-2014 Thread Starter
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Re: Extreme Cold

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do you have some kind of insulation between your heated space, and the cold outer shell of the boat?
Yes and no.

Everywhere except the V-berth, were we actually get ice on the walls, has a type of double hull.

I'm sure someone will know what I am trying to explain. So, we get condensation in the storage spaces that separate the hull from the cabin.

But in the Vberth, there is only the hull and the hull sweats a lot in these temp extremes. Then when we turn the heat down at night, the hull freezes over in the Vberth.
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post #52 of 110 Old 01-31-2014
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Re: Extreme Cold

so it's like you're sleeping in an igloo, right? Well, most boats aren't designed for cold weather live aboard situations.
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post #53 of 110 Old 01-31-2014 Thread Starter
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Re: Extreme Cold

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so it's like you're sleeping in an igloo, right? Well, most boats aren't designed for cold weather live aboard situations.
I would have to agree that while this boat is better than a 4 season tent, I will never, willingly, spend my winters this far north again.

I have yet to wake up shivering in the middle of the night. But still, it can get cold.
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post #54 of 110 Old 02-01-2014
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Re: Extreme Cold

I am just rambling here.... Has anyone tried a dehumidifier? Could it keep up ? Would anyone have the power to run one.
Good day, lou
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post #55 of 110 Old 02-01-2014 Thread Starter
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Re: Extreme Cold

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I am just rambling here.... Has anyone tried a dehumidifier? Could it keep up ? Would anyone have the power to run one.
Good day, lou
I don't have the space or power to run one. I have no breaker box on my boat and only two outlets.
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post #56 of 110 Old 02-01-2014
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Re: Extreme Cold

I have been doing some research on dehumidifying without electricity. I have found a few things and are going to test them out. I found a site that sells a plastic bucket with replaceable "crystals" suspended in the bucket. Sounds like the crystals absorb the water to saturation and drip into the base of the bucket, then you need to drain and replace crystals. As it turns out the crystals are calcium chloride (ice melt). Now I found other forums that talked about hanging rock salt in burlap a bag over a bucket and collecting water in the same manor as the store bought one. this is only good for 50% humidity and up. But you are looking at 100% at the envelope of the boat. What I am proposing to do is get bag and ice melter and hang high as possible and put 5 gal bucket under.

I am also pondering a glycol filled closed loop exchanger for winter humidification by convection. No power.

I'll let you know how I make out.

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post #57 of 110 Old 02-01-2014 Thread Starter
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Re: Extreme Cold

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Well, I got the heat exchanger end caps today for half the price I saw them selling for on several site.

If it wasn't so cold out, I'd replace them today. But the have to get out in a cockpit to do one side of the engine.

It supposed to warm up over the next few days, so I'll place them then.

I'll post pics of the old ones when I'm done.

Attachment 18849
Here are the old Heat Exchanger end caps. I went to replace them this morning only to find that the ones that I ordered were 1/4 inch too small. So I have to exchange them now.

Extreme Cold-oldhe1.jpg
Extreme Cold-oldhe2.jpg

Last edited by Pearson796; 02-01-2014 at 10:21 AM.
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post #58 of 110 Old 02-01-2014
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Re: Extreme Cold

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I am just rambling here.... Has anyone tried a dehumidifier? Could it keep up ? Would anyone have the power to run one.
Good day, lou

Forget a dehumidifier that you have to plug in. I remember Alan, barefootnavigator, did THIS POST, to show a product that absorbed moisture that you would then have to heat up in an oven or a hot pan on the stove to "reset" it and use again. The product comes from H2Out and it looks like something that would be good to consider.
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post #59 of 110 Old 02-01-2014
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Re: Extreme Cold

It sucks waking up to the corner of your pillow frozen to the hull.
i still have to be carefull and not leave a pile of blankets laying on a cold surface, it will end up damp. even with the temp being 70 in the cabin with the wallas heater.

If the harbor freezes up hard... what are the worries involved with that?
I have never had to deal with that.. only an inch of ice at the most for a few days..
but i did have worries of thru hulls freezing and maybe cracking.
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post #60 of 110 Old 02-01-2014 Thread Starter
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Re: Extreme Cold

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It sucks waking up to the corner of your pillow frozen to the hull.

I thought we were the only ones that suffered that problem. That's pretty aggravating.

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If the harbor freezes up hard... what are the worries involved with that?
I have never had to deal with that.. only an inch of ice at the most for a few days..
but i did have worries of thru hulls freezing and maybe cracking.
When I fiberglass boat gets hard frozen in the ice, there is a possibility of stressing the hull, or at worse actually crushing it. While I don't know if this is valid fear or not, but it's very stressful to be frozen in.

If I can prevent it with a D-Icer, then I certainly want to.
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