Both American Standards and Trane Systems are Famous Brands in the field of Heating ventilation and air conditioning systems. People often get confused while choosing among them. Here FACT HVAC has discussed some major differences which will help to choose a better one. Fact HVAC is a Tempe-based company that is now available at most of areas in Arizona. You can contact us on our official Scottsdale HVAC page for all HVAC services-related information.