Humidity

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Dcr2019

Dcr2019

Member
Joined
Sep 29, 2019
Posts
11
Location
Illinois & Wisconsin
Last weekend up at our campground in WI, temp was cool and lots of rain. Our camper was full of humidity with windows fogging and dripping. Couldn?t wipe em down fast enough. We?re new to RVing and wondering what the best preventative is. I?ve heard of Damprid or using a dehumidifier. Seems like the furnace really didn?t help. Turned fan on to circulate the air as well. Suggestions??
 
Hi Dcr2019,

Making sure you don't track in mositure to your camper is one thing of several that will help. I was just reading in my manual and it said to wipe off shoes of moisture and put wet things in shower. Don't boil water on the stove because that adds to moisture along with the humidity outside. Keep doors/windows shut. A/C would remove moisture from the air but you don't want to have it cool things down below comfort levels. Furnance can put moist warm air inside. Perhaps a small electric heater would do better under these conditions. Open a vent or two just a little way so it allows air circulation but not get rain in. Run your stove vent as well as that will pull out moist air. The amount of people you have inside will make the air damp. More people and more breathing makes moisture. Campers are small areas and doesn't take as much to generate more than enough humidity than you want.
 
X2 CamperAL
I suppose a dehumidifier would help, but sometimes the right (or wrong) conditions, lots of wet, damp, it just happens.  These campers are just not insulated, and the single pane windows...
 
Damprid cannot cope with large volumes of water in the air, so only a dehumidifier is going to work in your situation. However, in most RVs there is more fresh and humid air entering all the time as people come and go or through gaps around slides. Cooking, showers and merely breathing adds more to whatever is natural.  On chilly days, it all condenses on the windows and any metal that conducts to the outside.  Even a dehumidifier will be hard-pressed to keep up with that.

Your a/c will dry out the air, but the furnace doesn't. It only recirculates the air and makes it warmer in the process, but the water remains.
 
Air conditioning is your best weapon against humidity assuming you have the power to run it, and that it's warm enough that you need to run it. Otherwise air circulation is the key. Rather than close up the camper, opening windows and running fans that exhaust air outside is the best solution. You can't stop humidity from entering, and if you can't remove it with AC the next best option is to keep it from building up inside by bringing in fresh air. A high flow fan (such as a Fantastic Fan) plus a window open in each room can make a big difference
 
Thanks everyone for all your ideas. Have a few more weekends before we winterize. Supposed to be in 50?s this weekend. Will try all suggestions. We do have 2 fan heaters so will use those as well. Thanks again!
 
decaturbob said:
We carry both a humidifier and dehumidifier with us in our travels. Found on Amazon and small enough for cabinet storage
Click to expand...

We also carry a dehumidifier and in south TX it is needed all year.  A dehumidifier can remove water vapor from the air without overly cooling a room.  To achieve an equivalent effect with an A/C would often require turning the temperature way down.
 
furnace is causing the humidity. go to WW and buy a 30 qt dehumidifier.
 
cavie said:
furnace is causing the humidity. go to WW and buy a 30 qt dehumidifier.
Click to expand...

With all due respect, this is an often repeated misunderstanding.  Yes, burning propane or any other fuel does produce water vapor.  But a properly vented furnace keeps that humidity (and the other noxious gases) out of the living areas (unless it's of the unvented type).  It's not the furnace that's producing the water on the windows; it's the result of having the windows closed and having the humidity build up inside the RV.
 
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