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The original was posted on /r/homeassistant by /u/macbag on 2025-07-31 08:56:30+00:00.
This might be an obvious question, but I’ve lived all my life without AC and just installed one. Now I’m trying to automate it with HA and realizing it's not so simple. Now when I am at home I make a lot of manual (HA or remote control) clicks turning it on and off and I'd like to automate the process, to turn off it when needed and off when not.
At first, I thought I’d just go by inside temperature. But turns out how I feel depends a lot on humidity too, and sometimes even at 24°C I feel hot, other times not.
It’s not really about the outside temperature either even when it drops to +15°C in the evening, it can still feel hot and stuffy inside.
I'm in Northern Europe if that matters. Split ac, one on each floor (i have like open plan house). Grid
So… how do you decide when to turn the AC on or off? What logic do you use? I feel like I’m missing a good “feels too warm now” rule.