When heated or cooled air escapes from the ducts, especially in the basement and attic, the furnace or air conditioner needs to operate lengthier (and use far more gas) to carry the living region of your home to your temperature around the thermostat. Limit your use from the vent supporters https://reducefranchiseenergybills.wordpress.com/2024/08/22/how-to-reduce-franchise-energy-bills-with-sustainable-practices/