Servicing the Chicagoland Area & Suburbs | Emergency 24/7 Service
Call Today! 888-868-6667
Menu
Call Today! 888-868-6667
Contact Us

Awareness. Belief. Courage.ABC Supports Breast Cancer Awareness Month

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
  • “Tom was awesome! He is very personable and explains the whole process well. He did a great job and ensured that he used 5-star service throughout the process. I will definitely use ABC and Tom again in the future for electrical work.”

  • “Bill showed up on time to repair our broken air conditioner. ABC kept in touch throughout the day to let me know time he would be arriving too. Bill was professional, friendly, helpful, and knowledgeable. We wound up signing up for monthly care package because Bill and ABC really made…”

  • “We were very pleased with the service performed by Brett Pack in performing the annual maintenance of our air conditioning unit. He noted it was low on refrigerant, which he then added after consulting with us. He also made sure we took advantage of all available discounts.”

  • “Tom did a super job fixing our electrical problem. He is one of the best electricians I have ever had in my home for repair work. I would highly recommend Tom and ABC Company if you need any type of electrical work. He took his time and explained everything and…”

  • “I am so impressed with Chris and ABC Plumbing, Heating, Cooling. His friendliness honest approach to his Job is remarkable. Thanks Chris for making my day and believing that they are still great honorable people out there.”

  • “Our AC was not working in the 90-degree summer heat. Josh identified that power was not going to the furnace blower. He identified that power was not going to the furnace breaker. His keen eye spotted that the wire leading into the breaker had frayed. He cut out the frayed…”

Read more
Powered by
Our Promises to You
  • Convenient for You!

    We work on your
    schedule.

    Schedule today
  • Background Checks!

    We do drug tests and background
    checks before hiring.

    Learn More
  • No Need for Stress!

    Get ABC's worry-free guarantee
    at no cost.

    Get Started
  • No Surprises!

    Pricing is by the job, not
    the hour.

    Contact Us