903
Data centers raise nearby temperatures by up to 4 degrees in Phoenix
(techxplore.com)
This is a most excellent place for technology news and articles.
If Phoenix has heavy Industries, piped steam is often useful. There's also central heating (just hot water eg for cooking, bathing, dishwasher etc.), however this requires prior design.
Then there's a better option to have the chimney higher up so the hot air doesn't impact downstream.
It's not rocket science but it's not free of cost either