No Heat No Cool
Senior Airman Angel Amaya, 374th Civil Engineer Squadron heating, ventilation, and air-conditioning journeyman, closes a gate valve inside a steam pit at Yokota Air Base, Japan, April 9, 2014. The ’No Heat No Cool’ program, conducted each spring and fall allows airmen from the HVAC shop to perform preventative maintenance while reducing energy consumption. (U.S. Air Force photo by Airman 1st Class David Danford/Released)