Well, John, this looks very cool. Watched the video. Couple of questions.
Right now, as I said, my setup seems to be working well, but it's all patchwork and so forth. My "ductwork" is laughable, just a couple of PVC sections literally placed on top. Any condensate tends to spill out and on the floor (I have a pan). I also have to remove the teardrop tank to refill, can't simply pour through top. Pain.
They also have to be themselves placed high up, as they don't have a driving fan, like yourself. The foggers themselves are the only delivery system. Plenty of fog, but little pressure, so everything has to be placed high up to allow dispersal to be high enough in the cave to have the hope of good dissemination.
Your variable fan speed is cool.
I've a 236 c.f. cave only. I'd like to considerably oversize, as this cave is too small and even for a pilot cave, I'd like to build a better cave.
I'd like to place my fogging system on the floor. Buys me space on the left to do things like washing, and on the right, my shelves.
So presuming something like 6' of headspace, sizing and/or configuration recommendations, to do this nice dispersal?
Sorry for my ignorance, but more heads, more fog, yes? Sizing recommendations here to maintain 92-94% RH, cave growing from 236-maybe double or even triple that? Can one setup handle both well, presuming good digital control (as you know, I have the 24 VAC controller now).
Any way to build a longer extension chord? I may end up with the unit inside the cave, and for safety reasons, I'd prefer not to have to join the unit to an extension chord inside the cave.
Finally, ideally if it would work well, yes, placing the unit outside while piping the fogging inside would buy me considerable real estate. Just any issues besides what you've mentioned with rise and run of the ductwork, and head pressure, etc.
Nicely done, John. Cheese to you, my friend.
Edit: pics. You can see my lovely duct fogging system left. The right rising duct on back wall is my coolbot ductsock system, which works well.