ttystikk
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The creek is cold, but I have not measured it yet. I'm fairly certain it's 60 or below which would give the the 20 degree differential if running CO2 at 80 F. Don't know if that would get me condensation however.
So rh control with a chiller set up is done with condensation. Is it as simple as putting a drip tray under the radiator and letting what ever water condenses fall into the tray and drain away?
You'll need to separate your water droplets from your outgoing air, but yes. It really IS that simple. If your cooling system water is 60f, your humidity at 80f air temp will be about 70%. Perfect. Colder water will reduce dewpoint, and therefore RH.
Yes, it really is that simple. Simple and EFFICIENT. How efficient? My 2 Ton chiller keeps up with 16kW of bloom lights, AND dehueys as per the example above, AND cools all my RDWC. I know a lot of hvac professionals- on this site- who will sell you four times that much capacity in AC for the same job- and it won't work as well.