As pointed out above, it has been discussed in past. I believe that we even have a comparative average office temperature Germany vs America.

I am however one of the minority of my fellow countrymen and women; I do not have a fear of the deadly draft. This means that I receive black looks when I dare to open a window. The evil draft is thought to cause all kinds of ills.

I do find LH flights warm, and as I noted on one of the linked threads, I was dismayed to find the C blankets 'upgraded' to thermal ones recently

Now, if someone could please turn down the temperature at FRA I would be happy