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Moisture control
#1
CaCl2, calcium chloride can be very helpful in controlling excess moisture.  It is cheap, environmentally gentle, readily available at Walmart, Home Depot, and even $ stores.  Look for brand names like Damp rid.  CaCl2 pellets are also used to melt snow and ice.  People have been using it to help keep cabinets, basements, etc dry for many years.  It also seems like a good solution for rv's, vans, cars, etc.  It works for me.
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Rainier70 (12-13-2017), snarfersnarf (12-12-2017), dawnann7 (12-10-2017)
#2
I came here to look for answers on this. THANKS! How much would you use for a van?
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#3
I'd start with the small container, it might be a pint. We use them in ocean side home closets and anchored boats at the harbor all the time. Cheap and very effective....

http://www.dehumidifierbuyersguide.com/d...0t-review/
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#4
I found these Eva-Dry thingies at Costco today.  It's the beads that absorb moisture. When they get saturated, you plug them in to dry them.  That is, if you have the power-they draw 22 watts and it takes a day to dry them). At least it's not disposable.

$18.99 at Costco, $29.99 on Amazon. 

I'm in AZ and I don't foresee needing one anytime soon.  But got the two-pack, split with Hubby and will see if it works, come the day.
Ted


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#5
(12-10-2017, 08:53 AM)WX_Guy Wrote: CaCl2, calcium chloride can be very helpful in controlling excess moisture.  It is cheap, environmentally gentle, readily available at Walmart, Home Depot, and even $ stores.  Look for brand names like Damp rid.  CaCl2 pellets are also used to melt snow and ice.  People have been using it to help keep cabinets, basements, etc dry for many years.  It also seems like a good solution for rv's, vans, cars, etc.  It works for me.


It doesn't work.  It would take a ton of the stuff to have any noticeable effect in the volume of a vehicle.

Sciency stuff here:
http://www.cheaprvliving.com/forums/show...?tid=26950

Living in "Ziggy the Snail Shell" since May 2015
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#6
(12-13-2017, 09:56 AM)lenny flank Wrote: It doesn't work.  It would take a ton of the stuff to have any noticeable effect in the volume of a vehicle.

Sciency stuff here:
http://www.cheaprvliving.com/forums/show...?tid=26950

Actually, it does work.  People have used it for controlling moisture in basements for many years.

The chemistry is fairly simple.  The water molecule is attracted to the Calcium ion in a somewhat exothermic process using what is known as heat of enthalpy.  Google calcium chloride moisture absorption or calcium chlroride desicant for more information

I don't have any financial stake in calcium chloride or the companies that sell it.  Do you think that they would stay in business if it did not work?
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#7
I think possibly the size of the space and the weather really depends. We started with a Damprid container and one of the hanging bags when it started getting cold in Colorado Springs. Yes you could see some of the moisture being collected, but for our 16 foot travel trailer it most def wasn't cutting it. We have to break down and get a dehumidifier, It got the job done, I cannot wait to get down south so we can stop using it. It sucks being having it in the way while trying to cook. lol
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#8
Ventilation, at high CFM on demand.

Heating when cool, vented of course, ideally burner outside the living space.

Aircon when hot.

Easy to say I know, but IMO the more passive measure are really only effective when the unit isn't being actively lived in.
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#9
word from the experienced... if you are using the black UFO-over-bowl variety... put the whole thing into a small dishpan or in your sink or something..
I had an overflow.. and the water is not JUST water.. can be corrosive and is messy to clean up...
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#10
(12-16-2017, 12:56 AM)John61CT Wrote: Ventilation, at high CFM on demand.

Heating when cool, vented of course, ideally burner outside the living space.

Aircon when hot.

Easy to say I know, but IMO the more passive measure are really only effective when the unit isn't being actively lived in.


Yep. Despite the claims one sees on the Internet, the Damprid stuff just doesn't work. It's not intended for a voluem the size of a vehicle interior.

Ventilation is the only really effective solution.

Living in "Ziggy the Snail Shell" since May 2015
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