Right now is the time where we can finally open our windows and enjoy the fresh air. The temperature actually feels like fall and you might even be remembering why we live in Arizona in the first place. 
We’re finally out of the heat.
But something that is unique to Arizona is that sometimes the units are on the roof.
In this week's episode of Valley 101, a podcast by The Arizona Republic and azcentral.com, we answer this listener question going through the history and future of Arizona cooling systems.
Learn more about your ad choices. Visit megaphone.fm/adchoices