The video demonstrates how to perform a chimney scan through a pre-fabricated fireplace with a butterfly damper. The process begins by locating the damper handle, then positioning the camera using an 8-inch brush for stability. A 2-inch starter rod helps guide the camera gently past the damper before switching to stiffer rods as needed. Throughout the scan, the camera is rotated to inspect joints and liners for defects. For added support, a Blowfish attachment can be used when navigating offsets. The scan ends by carefully retracting the camera, keeping it in home position to avoid damage.