Originally Posted by Rocinante
We found that a small standard compressor dehumidifier worked very well for us. Since they aren't 100% efficient, they contribute some warmth as they operate, and as long as you keep temps no lower than the upper 50's, it works fine. Less efficiently as the trailer gets colder, but it still works. We read too many reviews of samill-type dehumidifiers not working at all to go in that direction. Sure you can hear the fan, but it didn't bother us one bit.
In the end, your money, your choice, go for it.
You don’t mention the compressor cycling on and off, how’s that rattle sound? Colder air has less capacity to hold moisture, not enough and your dehumidifier will start to ice up.