DemonTrich
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My night co2 hovers about 800ppm. I don't have any rh issues, I run deheuys and ac.
I have an intake and exhaust fan on speed controllers, plugged into a thermostat set at 74*. When the tent temp gets above 75*, fans come on at about 30% speed. Temp drops below 72*, fans turn off. Works perfectly, costs about $30 for the thermostat. I got the 2 inline hurricane fans and 2 controllers off Craigslist for $70.
True, but the fans will move the high humidity air in the tent out, while brining less humid air in. I have a small dehumidifier in the tent and like I said, during lights out it gets real high. When I turn the fans on, I can watch the humidity drop on the readout. You are correct in that if I want to drop it below the ambient RH, I will need a bigger dehumidifier.You need a dehumidifier. Fans won' cut it. A fan just moves air, nothing more or less.
81*F is ok for LEDs, for HID lights I like it closer to 78*F. I like to keep the day/night swing to 10-15 degrees. Anything below the low 60’s will slow growth considerably.Got exhuast fan and a 6in inside fan clamped to a pole in tent. The clip fan runs all the time but trying to figure out this new timer to set for on and off at periods of time...seems to be in 90's here again for another week before fall temps come back and inside of 4x2x5 tent get about 81 during day in sunroom but when was cooler and mornings were in mid 50's temp would be around 65 but move up as day and sun came out to around 74....what is good temp to keep in it....humidity only runs around 60's or high 50's