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- #341
I've seen this mentioned from time to time in threads and I keep forgetting to bring something up. People forget that RH is directly related to temperature. It's the percent of the capacity of the air. Air holds more water vapor at higher temps. So as soon as the temp drops, RH rises. The number that is RH is tied to temperature.
The spike in RH might simply be a sharp drop in temp as the lights cool off. The atmosphere remains the same - the temp just dropped - so the RH "rose" ... ?
Hmm, it is however, also true that when the temp drops, dew is more likely to form, and that's the issue, so ... it's still an issue. But maybe the solution is different?
Makes total sense.
leaving the extraction fan on after lights out has helped with this. Nothing over 56% overnight since I started doing that. It will be drawing air from the room, which is in the 21-23degres range at that time. Plus, I’ve set the aircon for 21-22drgrees overnight so it being a bit warmer is making a difference too, and that follows from what you say.... That wasn’t very clear, sorry! I’m a bit tired - not even going to try to rephrase it ... I get what you’re getting at, absolutely- hopefully you get my convoluted response