Tinker Air Force Base, Honeywell partner in $80 million heating system - Article Photos 4/7

The chillers shown here are part of the heating system at Tinker Air Force Base. Officials on Tuesday celebrated the start of an $80.6 million project with Honeywell Business Solutions to upgrade the base’s heating system. The event included a tour of Tinker’s existing system. Photos By David McDaniel, The Oklahoman