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Old 04-27-2014, 05:10 PM   #1
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Inside Humidity ??

Hey All

Just picked up a good deal on a dehumidifier on craigslist. What is the desired humidity level i should shoot for ? We are in southern Ga. and thought we need more than just the Damp-Out stuff to control the humidity in our TT.


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Old 04-27-2014, 06:24 PM   #2
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Humidity is a function of temperature (relative humidity). So 50% humidity at 80F can become 100% humidity at a lower temp. Also known as the dew point.

So, to your question, there is no target number. Dry is good.

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Old 04-28-2014, 03:42 PM   #3
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I use a dehumidifier in mine during storage and use when it is really humid but cool. I generally shoot for about 50% when storing at the average inside temperature and about 70% or less when using it. Most dehumidifiers shut down the compressor below about 45 degrees so they don't ice up. Mostly I just try for non-condensing on the window frames and other cold surfaces. If it gets cold enough it still will condense, but at least the dehumidifier keeps it from dripping. If you aren't actively using the RV, you'll pull a couple of gallons of water out of the air and then it will stabilize and not run very much, but if you are actively living in the RV you will notice that the unit removes gallons of moisture. There's no way damp rid can keep up with that. The only thing I use damprid for is in my food and clothes storage closets where there isn't much circulation. I leave those open when I'm storing the RV.

I find that if I run the dehumidifier for a couple of days after I return home from a camping trip and then just shut it off it dries everything out very well and I never get any musty smells even if I just shut it up and store it without power.
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