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Unblock Those Air Vents
Save on your energy usage by ensuring air vents aren't blocked by furniture or other obstructions.
Blocked air vents force your heating system to work harder than necessary and increase pressure in the ductwork, which can cause cracks and leaks to form.
Make sure all air vents are unobstructed from furniture, drapes or other items to ensure sufficient circulation throughout your home. If necessary, purchase a vent extender, which can be placed over a vent to redirect air flow from underneath furniture.
Source: energy.gov
