Dehumidifies for truck camper

I am in a much drier climate but,

I seal it up and use a small dehumidifier on a timer to run at night when humidity is highest and condensation is most likely to occur.

I tried the damp rid desiccant. It quickly became a dilute gooey mess. It will only absorb about a cup or two of water per container. I can dump a cup of water a week from my little dehumidifier in a little pop up in a dry climate.

The inside water content will always try to be in equilibrium with the outside and it will come in through all the small air leaks. Once it is inside, it will condense on the cold windows and walls because it cannot get back out quickly. The heater raises inside temperature, lowering the water carrying capacity of the air and reduces condensing, but at a significant energy cost.

Seal it tight. Get a dehumidifier.

I vote for option 2.
bumpy

I go to Wally and buy a bucket called "DAMP RID" it is in the RV accessories aisle and (the one I bought yesterday) cost $9.88. All you do is remove the lid and place on floor. I leave it in all year, and replace it every year at winterize time. You can replace the lid when using the camper, but I forgotten to at times with no negative results.

It is calcium chloride (fragrance free) Usually by the end of summer I end up with a very full bucket of partially crystals and partially water.

It does work very well in my PUP trailer. Everything ia always dry when we get back in it. And the canvas is dry with no mold or stains.

do some online research for the highest rated one and buy it. You wont regret it one bit. I use one in my trailer all winter. Really makes a dufference thefirst couple of trips in the spring

We are just north of you, it is dang humid now.:( My plan is to leave a vent open, they have hoods, and a window. This will allow air to circulate and with any luck prevent condensation and mold.