Locate an air conditioning vent and place a step stool underneath. Climb up on the stool so that you can easily reach the vent.
Locate the metal lever that is located along one edge of the air conditioning vent. Pull or push the lever until it is in the complete opposite direction to close the air vent. Look inside the air vent to make sure the internal slats are all positioned horizontally and block the vent.
Place a magnetic air vent cover on top of the outside of the vent to further block it and prevent additional air leaks. You can buy the covers at any home improvement store.
Repeat the process to block off all other air conditioning vents inside the home.
Things You Will Need
- Step stool
- Magnetic vent covers
- Make sure to remove all magnetic air covers and open the vents before you turn the air conditioning system back on in the warm months.