I do have the 12 disc version SP.Thanks Archi !! Those are the cats tit. Do you have one of these ? I'm wondering, how large a unit to buy? Seems like the more heads they have, the more they cost. I have 3 4x4x7 tents, in a 20ftx10ftx8ft room. It's more or less sealed. I have small window ac unit in the only window. The 2 bloom tents are exhausted into an adjoining room. Anyhow Archi, I know you're the man, when it comes to environment. I got one tent blooming from 9pm to 8am and another blooming from 9am to 8 pm. They say this mist is dry, so how does it create humidity. and does it rust metal ? I'm working with very little $$ Archi, tell me my cheapest way to raise humidity. This is something I've been living with for yrs., and now i'm going to fix it. Hopefully !!
It won’t rust metal directly, but keep in mind if you raise the humidity high enough you’ll hit the dew point and then things can and will rust.
For your room I’d say rather than try to lock in the VPD all the time, just keep the humidity in the whole room at 50%RH through the use of an Inkbird humidity controller.
In terms of which one to buy, I would warn you that the transformer that comes with the kit will run pretty warm if the humidifier is left to just run and run.
So you should try to pick a nice balance between cost and efficiency. The less the unit has to run, the less energy used and water from your reservoir used.
The 5 disc is the smallest I’d go. The 12 disc is a beast. I left it running in my garage, which is a three car garage, it completely filled my garage in about 15 minutes to where I couldn’t see from one end to the other. Like San Francisco dense! Tools started rusting which sucks cause I make furniture and all my handplanes had to have the rust busted.