There is no heat...
@dave -- thanks, very interesting.
What I'm saying here I learned from experience, and I don't know if it applies to data centers, but perhaps someone does. Probably does?
In many buildings in Manhattan, there is no heat. In many houses in warm climates, there is no heat. Literally, there is no heating mechanism. All people do is turn down the a/c to regulate the temps. There's no such thing as "turning up the heat". So many years freezing in my dentist's office in midtown Manhattan, he finally told me, there is no heat. All he can do is shut off the cold air a bit. This is in January.
Good to see Mad Men again, anyway.