How does a split heat pump system work to efficiently heat and cool a home?

A split heat pump system uses a compressor to transfer heat between the indoor and outdoor units. In the winter, it extracts heat from the outside air and transfers it inside to heat the home. In the summer, it removes heat from inside the home and releases it outside to cool the home. This system is efficient because it moves heat rather than generating it, using less energy to maintain a comfortable temperature.