I know this is now totally unrelated to raspi but where do you live? Setting your AC to 20C seems freezing to me and I almost never set my AC below 26C (Tokyo)
Feels weird to me, but college and people's homes are usually set to mid-70F too (or ambient temperature).
The way I see it you always long for what you don’t have. That is why in torching hot places they tend to cool things really down and wear long pants and a second layer, while in northern nations people will run around in shorts and thin dresses literally the first time it seems to be a little bit summerish.
I think that big of a temperature difference is not only a tremendous waste of energy (that heats the rest of the outside at the same time), but it is also quite impractical: you always have to carry around a second layer if you are planing to stay somwhere for more than an hour. There you are, carrying around that hoodie, just because the rooms are cooled down to much.
In California, I'm actually trying to escape the heat, which sometimes gets as high as 46C here. The setting on my home AC is 22C.
I guess my point is that your preferred AC setting can differ greatly depending upon the outside conditions.
>, I'm actually trying to escape the heat, which sometimes gets as high as 46C here. The setting on my home AC is 22C.
wait what? how does the weather outside have any bearing on what your comfort temperature inside should be? i mean, if you think 26C is comfortable, why would you need to turn it down to 22C in CA, where it's probably even drier?
Thus, it wouldn't surprise me if the RPis perform better at 18C than they do at 28C.
Humidity also plays a big factor. In the southern US, most people have their AC set to between 23C and 25C during the summer and somewhere around 20C in the winter. In more arid regions the temperature settings creep up because you tend to feel cooler when it is dryer.