For starters, a high energy efficient system can help lower your cost. Depending on your energy provider, you can inquire about qualifying for smart saver programs. These programs are based on the system’s seer rating.
Using a programmable thermostat so that you can set the temperatures for specific times/ needs during the day.
During the heat mode on heat pumps, only raise your temperature 2 degrees at a time. Any more can activate your heat strips.