12 volt dehumidifier

[legolas]

Has anyone actually used 12 volt dehumidifier? If so what is your experience and any recommendations for a brand name.

Please no war stories about wet trailers etc. I just need info from folks who have actually used a 12 volt dehumidifier and any recommendations for brands.

[Metaphor_7182]

Been using a 12 volt dehumidifier Eva-Dry 2200 since November on weekend trips and when parked by the garage. Exterior humidity is generally 85 to 99%.
At the moment temp it is 29F at 99% humidity.
Inside the rig it is 54% humidity, never saw it above 70% since we plugged it in.

[legolas]

Thanks to all. Living in the Smokies I am familiar w/ humidity. I have 2 units in my home as well as a large "commercial type" in the crawlspace of my house. It looks as though I will have to stay w/ my current practice of using 2 large "Damp-Rids" and changing them every month during the winter. The RV park where I keep the TT cuts off power/water to the section of the park where I am during the winter as they don't rent spaces in that area during the winter. My TT is one of only 2 -3 that remains in storage in that part of the park during the winter. This park is convenient, close to my house and from April thru Oct I have access to water, elec and sewer. Cost is reasonable but just went up $10 this year. I may look around for another spot where I can have and use the electric all year long.

[ktmrfs]

The 12V dehumidifiers are very inefficient. They are a thermoelectric device, like the 12V coolers. Second, they don't remove much water/day.

We needed a dehumidifer when we travel to the coast and have a small portable home unit. On a humid or rainy day it will fill up the 3 gallon tank in about 12-14 hours. We need to empty it twice/day. 12V units remove pints/day at most.

[Golden_HVAC]

Hi,

I was looking up Energystar.gov website. I know that de-humidifiers use a huge amount of power. This is a link to a average high efficiency dehumidifier, it consumes about 1.8 kilowatts of power per liter of water recovered. That is more energy than can be stored in a 12 volt battery to just capture 1 liter of water! And to survive the whole winter, you would need to use 3-4 amps at 120 volts for a couple of hours per day, depending on how much air is circulating into the RV during each day.

I don't think you would find something that is 12 VDC to run your dehumidifier.

lCicky

Fred.

[pnichols]

Here's what to keep in your RV in the winter to keep the inside air dry - it doesn't require any power:

http://www.amazon.com/Dry-Packs-Gram-Silica-Canister-Dehumidifier/dp/B003QZ6PZ0/ref=sr_1_3?ie=UTF8&q...

[bid_time]

With no power, it is highly unlikely you will get more than a few weeks out of the battery. Maybe even a lot less depending on how much the dehumidifier runs and the power draw.

[legolas]

MrWizard wrote:
If they exist ?
You will find them from somebody, who caters to truckers

I found one at a company called EVA-Dry. I am waiting for info from them as to the power requirements. I need to put one in the TT during the winter while in storage as the storage company turns off both power and water after November 1.

[MrWizard]

If they exist ?
You will find them from somebody, who caters to truckers