There are many ways to cut costs on your HVAC expenses. One way is to upgrade your system to a more energy-efficient model. This will save you money on your energy bills and also help to protect the environment. Another way to reduce costs is to properly maintain your HVAC system. This includes regularly changing the filters and getting annual tune-ups. Finally, you can save money by using a programmable thermostat to better control the temperature in your home. By following these tips, you can significantly reduce your HVAC expenses.