13 Clear Ways: How To Keep Moisture Out of RV in Winter

Here we list a few ways How To Keep Moisture Out of RV in Winter. The weather is changing, winter is coming, and condensation is starting to build up in your RV.

Well, it’s time to fight moisture, mold, and dampness with this list below. Condensation on walls, windows, and closets gets worse in the winter because vents and windows are shut.

Whether you’re in a camper, van, or RV, we all go through this. You want to keep moisture low, prevent condensation, and know humidity levels.

Related: Can You Live in an RV in Winter?

How To Keep Moisture Out of RV in Winter

How To Keep Moisture Out of RV in Winter:

1. Make It Hot: Raise the temperature with electric heater things dry, as appose to the propane furnace (Heat Storm).

2. Avoid Hanging Things To Dry Indoors: Unless there is a moisture absorber hanging bag hanging alongside it.

3. Buy A Dehumidifier: A proactive step in eliminating condensation is by investing in an RV dehumidifier. Some dehumidifiers have Hygrometers installed so you can know your humidity level.

4. Switch Up Your Cooking Habits: When cooking or boiling water make sure to open a window or two. Keep the lids on those pots and pans two, you want to prevent any excess water or steam. And, of course, there are alternatives to traditional cookware.

5. Cover The Window: Condensation builds up in windows. Use a special window insulation film like Frost King Indoor Shrink Window Kit.

6. Vent Fans: When cooking, or showering, utilize that vent fan. Cooking and steam from the showers add a bunch of humidity so the vent fan won’t give it time to settle.

7. Open The Window: Crack a window for as long as you can bear in the winter. Also, make use of your roof vent.

8. Say No To The RV Furnance: Turn off the RV furnace to stop the windows from sweating. Propane heaters give off a ton of moisture.

9. Explore Bathhouses: If moisture is building in your bathroom, reduce your time in the show. If you’re parked at a campground take advantage of their Bathhouse.

10. Open Cabinets and Closet Doors: Especially when putting your camper in storage. Enclosed areas promote mold and mildew growth. It doesn’t matter if you’ve gone for a while or just a few months.

11. Run The Air Conditioner: Does running your AC reduce the moisture in your RV? Yes, running the AC does reduce moisture in your RV. See the best portable AC for RV reviews if you need help picking one.

12. Check Your Roof and Ceiling: Check to see if your roof is tight by inspecting the caulking, molding, and seams (Do this about twice a year).

13. Plumbing: Check or hire someone to double-check your RVs toilet valves, lines and see that your bathroom is vented properly. A small space with ample water is the ideal place for mold to grow.

Related: What Are The Best Shower Heads for RV Living?

More Tips on How To Keep Moisture Out of RV in Winter

How Do I Prevent Mold In My Camper Storage?

To prevent mold in your camper during storage grab a moisture absorber or two: DampRid Fresh Scent is a moisture absorber that doesn’t require any power or batteries.

DampRid simply takes the moisture out of the air, absorbs, and traps it in an easy-to-remove bag.

Related: How To Sanitize RV Water Tank

DampRid vs Dehumidifier

This is also the battle between Crystals vs electricity.

Dampid (Moisture Absorber Crystals)

Moisture removing crystals suck the excess moisture in the air and trap it. They are easy to use, clean and cheap. On the downside … chemicals!

Chemicals (calcium chloride crystals) don’t bothersome but it’s an issue for us when we can avoid it – to each their own. If you have pets, be aware of their whereabouts.

We don’t want pets licking or eating the crystals. They do have lids but you never know.

You will have to replace them here and there.

Electric Dehumidifier

Electric dehumidifiers come in various models with a number of functions. Those functions range from only having an ‘on/off button’ to being able to set desired moisture levels.

They also vary in size from plugins that stick to the wall to portable dehumidifiers that can service large rooms.

Electric dehumidifiers can be efficient, they’re pet friendly, have chemicals and you just have to replace the water in the tank.

You’d have to replace the water tank every couple of days, use a fair amount of electricity, and may make too much noise.

Related: How To Convert RV Water Heater to Tankless

How To Stop Condensation in a Pop-up Camper?

Make sure to store wet gear outside the sleeping areas to prevent evaporating while you sleep.

Also, take advantage of all ventilation as possible on hot days to avoid a build-up of heat on the inside and stop any residual condensation forming mold.

TIP: Keep sealant around to close any gaps that may appear around your sink and shower to prevent moisture from seeping through.

Related: How Long to Keep Fresh Water in an RV Tank

Wrapping Up!

Now that you’ve read the 13 clear ways of How To Keep Moisture Out of RV in Winter, we hope this helps you get rid of the condensation in your living space.

Keeping moisture out or minimizing moisture levels doesn’t only create a more comfortable space it affects wood, mattresses, curtains, and cushions. You can also experience damages:

  • Wood Rot
  • Mold and Mildew Growth
  • Corrosion
  • Damage to different Interior Components

Lastly, if you are in the market for a new RV you should get a habitation check to ensure moisture levels are normal (between 30% and 50%).

Related: How To Stop Condensation in RV

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