Side discharge central AC condensers with heat pumps move heat into and out of a building by compressing and expanding refrigerant in a controlled manner. They are typically smaller, lighter, and quieter than conventional condensers or heat pumps, allowing them to be installed in more locations. Rather than drawing air vertically through their coils, their fans draw air sideways through the condenser coils and direct exhaust away from the conditioned structure. This design reduces the need to clear snow, leaves, and other debris from the top of the condenser and lowers the noise level by directing sound away from the structure. Their compressors feature variable speed inverter mechanisms that allow them to run at lower power levels for heating or cooling demands that do not require full power, making them more efficient than non-inverter designs.