Crass inspects one of the exhaust fans sitting idle in the warm air exhaust chamber above the server suites of the Prineville facility. Warm air is siphoned into the chamber and exits the building on warm summer days. With snow flurries in the air on Feb. 20, the day of our visit, only one or two of the fans were at work. Most of the excess heat that day was being rerouted to heat populated areas of the building such as the reception area and cafeteria, offices, break rooms and meeting rooms. The building's air flow management system constantly monitors conditions and automatically routes air as needed.