The answer to 'how does heat pump work' is that a heat pump is a highly efficient electric heating and cooling system that works by transferring heat between the inside and outside of your home. Unlike traditional furnaces that generate heat, a heat pump simply moves heat from one place to another.
Heat pumps have two main components: an indoor unit and an outdoor unit. The outdoor unit contains a compressor and refrigerant that absorb heat from the outside air, even in cold weather. This heat is then transferred to the indoor unit, which distributes the warm air throughout your home. In the summer, the process is reversed, with the heat pump removing heat from the indoor air and transferring it outside, providing cooling.