The video shows a close-up of a metal object being heated in a furnace. The object is glowing red hot, indicating that it is being heated to a very high temperature. The furnace appears to be made of metal and has a door that is open, allowing the viewer to see the object inside. The object is cylindrical in shape and is placed on a flat surface within the furnace. The lighting in the video is dim, with the main source of light coming from the furnace itself, casting a warm glow on the object. There are no visible flames, but the glowing red color suggests that the object is being heated by a flame or some other form of heat. The video does not show any people or other objects in the frame, focusing solely on the heated metal object.