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Charcoal to assist with garage moisture? #2717352
11/18/19 10:28 PM
11/18/19 10:28 PM
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Macomb, MI
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vinnyd76 Offline OP
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Anyone place charcoal (or equivalent) in their garage to help with controlling moisture? If so where do you have them placed and quantity? If not, do you have another recommendation for ensuring there is a limited amount of moisture in your garage?

Re: Charcoal to assist with garage moisture? [Re: vinnyd76] #2717360
11/18/19 10:55 PM
11/18/19 10:55 PM
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FM3AAR Offline
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Running a fan on low and a dehumidifier took care of any issues like rust on tools or mold inside the cars.

Re: Charcoal to assist with garage moisture? [Re: FM3AAR] #2717389
11/19/19 01:21 AM
11/19/19 01:21 AM
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5thAve Offline
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I also run dehumidifier. You'd need a lot of charcoal to even try to make that work.

Re: Charcoal to assist with garage moisture? [Re: 5thAve] #2717391
11/19/19 01:42 AM
11/19/19 01:42 AM
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Trumussia
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jcc Offline
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I wasn't aware charcoal had a special moisture absorbing properties, other then its dry. I use a dehumidifier.
If It is a garage, get a new style hot water heat pump, which is effectively a dehumidifier, among other things, biggrin
I leave my charcoal for grilling outdoors, not sealed in So Fla, when I use it after a year or so, it seems to light fine, and I see no indication it has absorbed ANY moisture.
Is this another "don't charge your battery sitting on concrete" idea?
Absorption of organic odors/compounds which is property of charcoal, is a different process then absorption of moisture

edit. well Wiki says activated charcoal is considered a desiccant because of its microscopic large surface area. I didn't dfig far enough to see how it compares to other purposed desiccants.

Last edited by jcc; 11/19/19 03:02 AM.

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Re: Charcoal to assist with garage moisture? [Re: jcc] #2717438
11/19/19 08:35 AM
11/19/19 08:35 AM
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Originally Posted by jcc



edit. well Wiki says activated charcoal is considered a desiccant because of its microscopic large surface area. I didn't dfig far enough to see how it compares to other purposed desiccants.


Don't think grilling charcoal is activated, so you aren't wrong per se and the OP didn't specify either. Though the activated type is what's usually used for I dunno, soaking up too much alcohol in your belly. That's always fun.

Re: Charcoal to assist with garage moisture? [Re: Sniper] #2717455
11/19/19 09:54 AM
11/19/19 09:54 AM
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Ontario, Canada
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Stanton Offline
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Charcoal has no moisture absorbing qualities. It can be used to absorb odors. Rock salt was often used to absorb moisture but a dehumidifier is much more effective. I run one in my shop from early spring right up to late fall. You get similar weather so that would be the same schedule for you. Typically, when the furnace comes on the humidifier can be turned off.

Last edited by Stanton; 11/19/19 09:55 AM.
Re: Charcoal to assist with garage moisture? [Re: Stanton] #2717476
11/19/19 11:13 AM
11/19/19 11:13 AM
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St. Charles, MO
wingman Offline
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Charcoal is not the same thing as activated charcoal.

And neither is really a very good desiccant.

If you want to absorb water, you are better off with silica gel or something else.

Re: Charcoal to assist with garage moisture? [Re: wingman] #2717627
11/19/19 05:36 PM
11/19/19 05:36 PM
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New Jersey
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Powerflow Online content
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You can make a pretty cheap dehumidifier by putting a colander on top of a plastic container and filling the colander with calcium chloride. The CaCl absorbs moisture from the air and it drips into the plastic container. Dump the water down your drain, refill the colander, and keep going. Calcium chloride was the secret ingredient in Damp Rid.

Re: Charcoal to assist with garage moisture? [Re: Powerflow] #2717659
11/19/19 07:12 PM
11/19/19 07:12 PM
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Ontario, Canada
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Stanton Offline
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Or just buy a cheap used dehumidifier !!

Re: Charcoal to assist with garage moisture? [Re: Stanton] #2717936
11/20/19 08:31 PM
11/20/19 08:31 PM
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Originally Posted by Stanton
Or just buy a cheap used dehumidifier !!


Yup.

Re: Charcoal to assist with garage moisture? [Re: 5thAve] #2718403
11/22/19 01:13 PM
11/22/19 01:13 PM
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albany ny
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05dakota Offline
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which wont work below 50 degrees


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Re: Charcoal to assist with garage moisture? [Re: 05dakota] #2718506
11/22/19 10:18 PM
11/22/19 10:18 PM
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Ontario, Canada
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Stanton Offline
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Quote
which wont work below 50 degrees


Humidity is not usually a problem in low temps anyway !!

Re: Charcoal to assist with garage moisture? [Re: Stanton] #2718512
11/22/19 10:51 PM
11/22/19 10:51 PM
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Originally Posted by Stanton
Quote
which wont work below 50 degrees


Humidity is not usually a problem in low temps anyway !!


Condensation occurs when temps drop as colder air cannot hold as much water.

Re: Charcoal to assist with garage moisture? [Re: vinnyd76] #2718528
11/23/19 12:15 AM
11/23/19 12:15 AM
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Rochester NY
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Jer Offline
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I've found that, for my place, the best option was placing a fan in a window and leaving it on. It draws air in from under the shop doors and pushes the air out the window. No issues except for when the humidity is very high. In the storage barn, I have a humidity sensor mounted on the ceiling, and it automatically turns the vent fans on, and shuts them off as well. Seems to work.


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