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How to keep condensation away in colder weather

Updated: Aug 4, 2021

Condensation occurs when the water vapour in the air cools down to a liquid, which then sticks to cold surfaces. In your camper, this may include windows, metallic surfaces, and any other cooler surfaces.

At first, it can be helpful, as higher humidity in your camper can make the air feel a bit warmer on those chilly nights. And it can seem sort of fun, especially if you’re a creative type. Condensation in your RV can turn your windows into a canvas; you can write your name, draw a smiley face, and have a few giggles. Condensation, though, is no laughing matter.

Eventually, excess moisture and condensation in your RV can cause mould to grow, wood to rot, and metallic parts to quickly corrode. Reducing and eliminating it, therefore, is your goal. Here are nine things you can do to reduce condensation in your RV.

1. Use a Dehumidifier

You probably have one running in your house, but have you considered using a dehumidifier in your camper? These small appliances are great for pulling moisture out of the air, and one in your camper can significantly reduce condensation and all of the problems that come about because of it. Be sure to empty the holding tank frequently or when the full light is illuminated. A small word of caution: dehumidifiers use a lot of energy to run, so be sure you have the hookup or battery power necessary to keep yours going.

2. Crack a Window

This is especially helpful if it’s chilly out. Allowing some outside air inside can help to reduce the humidity and, consequently, reduce the condensation in your camper. Of course, this tip is not recommended if it’s raining outside.

3. Use a Product like Damp Rid

This is a simple and inexpensive solution to drying out the air without plugging anything in or purchasing a large appliance. Damp Rid is simply crystals made of calcium chloride; the container sits out of the way and traps the excess moisture in the air. When the product is dissolved, the container is refillable. Or disposable version can be purchased from stores such as Poundstretcher & B&M.

4. Don’t Air Dry Clothes Inside

When caught in the rain you will want to hang your clothes up to dry, but if you’re trying to keep the humidity in your camper down, this won’t help. As the clothes dry, all of the water they’ve soaked up will evaporate into the air and will then, once the temperature drops, cause condensation in your camper

5. Cover Pots & Pans When Cooking — or Even Better, Cook Outdoors

Heat makes steam, and steam is nothing more than water vapour. It will increase the humidity in your camper, and again, once the temperature drops, that humidity will turn into condensation. Boiling water for pasta or simmering something on the stove? Keep those pots covered!.

6. Install Better Window Insulation

This may not seem like it can make a lot of difference, but when you put a more of a buffer between the outside cold air and the inside warm air, you raise the temperature of the window surface, and that can help keep condensation away. Plus, there are some good DIY insulation options that will get the job done and not cost you very much

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