Servicing the Chicagoland Area & Suburbs
Emergency 24/7 Service
Call Today!
Menu
Contact Us

Will Closing Vents In Unoccupied Rooms Save Energy?

Posted on: January 31, 2017

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
  • “Jonathan Henrich was very professional and provided expertise background information to my questions when replacing my sump pump and battery backup system. He was obviously knowledgeable about what he was doing and took pride in doing a great job. While the price was more than I expected, the work was…”

    – Jonathon H.
  • “My experience with ABC was wonderful. The electrician, Bryan, who we worked with was fantastic. I would recommend this company to everyone! Very dependable, professional and friendly.”

    – Bryan J.
  • “I recently bought a home. For the first 6 months here I have been experiencing some electric issues. So, just two day ago - I had another shortage. Ryan came out and explained the issues. Im in sales, and he did not try to pressure me into doing the right…”

    – Ryan B.
  • “Anthony was my HVAC technician and I could not have had a better experience. He was professional and knowledgeable. He explained everything. I cannot tell you how nice it is to have someone like that to count on for my heating and air conditioning. Great Job Anthony”

    – Anthony H.
  • “Your fast, professional handling of the issue was remarkable in today’s business environment. No hassle and solid craftsmanship along with a knowledgeable technician, forces me to call you the next time I require plumbing assistance and makes ABC an easy referral to friends and neighbors. Thank you for your integrity.…”

    – Bob S.
  • “I had a very positive experience with ABC…They even brought over space heaters for us and discounted the price the cost of a replacement part I had purchased two weeks prior. Great customer service.”

    – Tim L.
Read more
Powered by
Our Promises to You
  • Convenient for You!

    We work on your
    schedule.

    Schedule today
  • Background Checks!

    Drug test and back ground
    checks before hiring.

    Learn More
  • No Need for Stress!

    ABC worry-free guarantee
    at no cost.

    Get Started
  • No Surprises!

    Pricing by the job, not
    the hour.

    Contact Us