Article Photos: Tinker Air Force Base, Honeywell partner in $80 million heating system 1/7

Steam from the heating system. Tinker Air Force Base officials held a ceremony and tour of Tinker's heating system. The base in August awarded an $80 million contract to Honeywell to build a new, more efficient heating system.  Photo By David McDaniel, The Oklahoman <strong>David McDaniel - The Oklahoman</strong>