Class 2-A is currently in the common room suffering in the heat since the AC is currently broken

Todoroki was doing fine as he had his quirk to cool himself down with.

Kirishima was laying on the edge of the couch dying as Mineta sat in the refrigerator to cool off.

Iida yelled at Mineta to get out.

Midoriya was actually making an effort in trying to cool himself off.