6: Efficient Operation7: Thermostat Settings8: Programmable Thermostat9: Inspection10: Keep Registers Clean11: Trapped Air12: Pipe Insulation13: Inspect Ducts14: Duct Insulation15: Filter Replacement16: Reflectors17: Heat Flow18: Unused Rooms
20: Lower the Thermostat21: Maintain Humidity Levels22: Ceiling Fans23: Curtains24: ENERGY STARRemove window air conditioners when the weather gets cool. If you can’t, enclose them with a cover.
