Hi guys, Welcome to the Advanced Video Search Engine, and you are watching Bricks - Process change from BTK firing to Zig Zag Firing including installation of ID fans. That video is uploaded by Bureau of Energy Efficiency at 2019-09-18T03:57:40-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [ghVtkHpZoyM]