Typically 45% of your heating and cooling bill goes to pay for heating and cooling of your home. There are many types of heating and cooling systems out there, but no matter what type you have, you can take steps to reduce energy use and save money through proper maintenance, efficient control and upgrades. There are also a number of steps to take around your house to help your system work more efficiently, like better home insulation, duct sealing, thermostat settings and the use of passive solar heating and cooling techniques.