Charlotte, Manatee & Sarasota Counties | Call for Fast, Reliable Service
Call Today! 941-225-2182
Menu
Call Today! 941-225-2182
Contact Us

Will Closing Vents In Unoccupied Rooms Save Energy?

Many homes have rooms that go unoccupied for long periods of time. Guest rooms, bedrooms and basements make up a large percentage of the air volume in the average home. So it seems like a simple question: if the room is unused, why not close the air registers to save energy? The reality is that closing vents can actually waste energy, harm your furnace and AC while also making occupied rooms less comfortable.

When your central heating and cooling system was installed your HVAC technician carefully measured the volume of air in your entire home, then matched the size of your furnace and air conditioner to provide the best performance. Reducing the air volume by closing vents will not make your AC cool less or the heating system heat less, it will simply send the same amount of air to the open air ducts and vents throughout your home. In addition, during normal operation a home’s ductwork will lose 20-30% of the air though leaks. Closing vents will simply cause more conditioned air to leak, wasting energy.

Closing air vents also increases the pressure inside the ductwork, which in turn will make the blower fan work harder to push the air through. The result is an increased risk of the AC evaporator coil freezing or the furnace’s heat exchanger overheating.

Of course, closing one or two air vents is not going to cause major issues, but for each vent that is closed the performance of your central heating and cooling system will be diminished.

Read What Your
Neighbors Are Saying About ABC
  • “Great service call. Super attitude and just plain nice guy.”

    – Google Review
  • “I recently scheduled an air conditioning tune-up for a very reasonable price with ABC Southwest Plumbing & A/C. I also…”

    – Google Review
  • “ABC Plumbing were very nice and Jonathan cared about my feelings. I would recommend them to ALL my friends. I…”

    – Facebook Review
  • “ABC Plumbing & A/C is a company I would keep for all time. Had an emergency at night, and they…”

    – Facebook Review
Read more
Our Promises to You
  • Convenient for You!
    We work on your
    schedule.
  • Background Checks!
    We do drug tests and background checks before hiring.
  • No Need for Stress!
    Get ABC's worry-free guarantee
    at no cost.
  • No Surprises!
    Pricing is by the job, not
    the hour.