? Which Dehumidifier?

The one difference you will find is most with a drain tube are gravity feed. They will only drain to a lower point. Some have a pump. Those will pump the water up to a drain or sink or even up to a window to get it outside.

We have a new 20 pint GE unit that we're really happy with. You'd want to go with one of the bigger units for the square footage you're talking about, though. The GE 20 pint and larger models all have a tube output on them.

Rob

haeir (sp?) makes almost all the portable dehumidifiers, they are just sold under a variety of brand names. Go to home depot, lowes etc. and check out what they have for the smaller units. All the smaller unitis I've seen, including the one we have has a tank but also the capability of hooking up a drain hose. Even the smallest ones (a few gallon capacity) will do fine for an RV.

You will need 2 of the above. Will work down to 41*

Eva-dry 1100 $48 from Wally World. Some people say they don't work but I have used them for years and can tell you from personal experience they do. Tank is small and in my case will fill in 3-4 days. You could tap tank near bottom edge and run clear plastic tube into sink (grey water) for later disposable. Stopper all drains except one it is draining to.