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#1
05-31-2014, 05:08 AM
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Better Fresh Air Venting Plan
Okay, I have a dream, google is letting me down finding an off-the-shelf product to satisfy my dream and I'm asking here to see if someone has seen such a product before I just make it.
I want to have a exhaust fan controlled by 2 (two) humidistats. One inside, one outside. If the humidity inside is above the proper threshold AND higher than outside, the fan is allowed to run; if the humidity is higher outside than inside, it's not allowed to run (regardless of the humidity inside). The fan can be switched on/off via a power switch, a/c, d/c, relay, I care not - the logic is all I'm after at this point... The logic is something I'm capable of doing but truly I'd just rather give someone else my money so I can enjoy a few beverages with the time I would put into scheming (not to say that the scheming time wouldn't involve some beverages, but you get the idea)  Anyone run across such a device (or already-designed-schematic for such a device)?
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Single System Setup: 210G SPS reef, 225G FOWLR, 72G water change, 50G frag, 120G sump. I promise a journal at some point! (anyone need some coral frags? I likely always have stuff that is frag-ready) 
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#2
05-31-2014, 05:35 AM
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#3
05-31-2014, 05:48 AM
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Nope, never seen anything like it. But I don't see why you couldn't do something like that with an Arduino controller, a couple relays and 2 humidistats
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#4
05-31-2014, 04:51 PM
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can't say seen anything like your looking for put if the humidity is high in the house can't hurt to still vent it outside even if the outdoor rh is higher.
We're getting a little north for it but look into erv rather than just a hrv.
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my tank
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#5
05-31-2014, 05:08 PM
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Why do you not want it to run if the humidity outside is higher than inside?
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250G DD LED SPS R.I.P. 180G LED SPS 80"x36". 300G custom build Owner of Mountain Ridge Heating and Gas Class A gas fitter, HVAC
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#6
05-31-2014, 07:19 PM
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In theory, exhausting air from your house creates negative pressure which will draw air in from outside. If the end goal is to decrease humidity inside, that is counter-productive
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#7
05-31-2014, 07:26 PM
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Quote:
__________________
Single System Setup: 210G SPS reef, 225G FOWLR, 72G water change, 50G frag, 120G sump. I promise a journal at some point! (anyone need some coral frags? I likely always have stuff that is frag-ready)
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Hybrid Mode
