The key to the continued and efficient operation of your heating and cooling system is periodic maintenance. Servicing you heating and cooling equipment will keep your system operating at its peak energy efficiency and safe operation. As much as half of the energy used in your home goes to heating and cooling. Maintaining the heating, ventilating, and air conditioning (HVAC) system can have a big effect on your utility bills and your comfort. Learn about the process, methods and benefits of cleaning and maintaining your HVAC system.