Arizona isn’t known for cold weather, quite the opposite, but that doesn’t mean you can go without preparing your HVAC system for the winter. We presume your heater has not been powered on since around February, so it’s important to take care once you begin firing it up again. Temperatures in Arizona usually fall out of nowhere, and as we find ourselves just leaving that lucky air-off and windows-open time frame, we would like to fill you in on how to prep for the chilly nights to come. Maybe Arizona heaters don’t work as hard as those in snowy states, but they are used nonetheless and just a little attention can prolong the life of your system, and have it running better in the meantime.