What system creates the least humidity?

Hey rollitup.

So I just chopped up my mothers and have clones rooting out in the aerocloner. Last couple rounds i used a vertigrow (www.vertigrowsystems.com). Those things are baller and can produce really good yields when set up right (it takes some tweaking). But now I live in a different place and dont have the space to set this up.

Space now is 2'x5'x7'tall. I don't run AC, but it's winter and temps shouldnt be a big deal. Anyways, this is a closet space, and itll be walled off and air will be recycled with a 6" fan and filter.

Question is: Which hydro system is going to create the least amount of humidity?
I just want to hear people weigh in. Realistically I will probably run square vinyl fence posts with 3" net pots drilled in, and no medium in the tubes.

The issue is that my windows are not always open, so even though I'm recycling air through the grow room, it's still sometimes all the same recycled air from the main room. Since I have no dehumidifier, this can become an issue.

I ran the vertigrow with no lids, and the trays full of hydroton, and that thing made my old garage feel like a rainforest. I just want to avoid PM issues. (also dont say DWC because the water is going to be 75degrees+)

Your probably right with the "nft" fence post system being the least humidity. If you cover the net cups and res at all times you should be able to keep it do generating only what the plants transpire.
Water temps may be a bit of an issue though, as at 75 degrees the level of dissolved o2 will drop significantly. A bigger than needed res may help this.

And if you decide you want to sell the old set up, hit me up i may be interested.