Sometimes it’s nice to enjoy the holidays by a warm fire. Inspired by the classic poem “A Visit from St. Nicholas” written by Clement Clarke Moore in 1844, PEC would like to share our virtual fireplace with you. ‘Twas the week before Christmas when the roaring log fire in this cozy Christmas scene was created with the open source computational fluid dynamics (CFD) code FireFOAM and the NIST Fire Dynamics Simulator (FDS) solver. The stockings were hung by the chimney with care for our Managing and Senior Principals, David Stevens, Kirk Marchand, Chuck Oswald and Ed Conrath. Wishing our clients, colleagues and friends a Happy Christmas to all, and to all a good-night.