The question "How does a heat pump work?" appears on screen.

The video opens with a white screen and the EDF logo, followed by the question "How does a heat pump work?". An orange graphic element then slides in from the left. The scene transitions to two presenters standing in front of a diagram illustrating the heat pump's refrigerant circuit. The diagram shows the outside air, compressor, evaporator, expansion valve, condenser, and heat distribution to a house. The presenters explain the process, and the video ends with the EDF logo and website address.