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Can Closing Vents Save Energy?

Heating and cooling account for about half of your total at-home energy usage. No wonder you’re on the lookout for energy saving tips! Perhaps you’ve heard that closing air vents in unused rooms saves energy. It seems logical that with the door shut and the vent closed, your HVAC system would be free to heat and cool the rest of your home more efficiently.

Unfortunately, closing vents actually wastes energy. Discover the unintended consequences of closing vents, and you’ll realize how ineffective it is for lowering your utility bills.

Increased Ductwork Leaks

Ideally, duct systems should have low air leakage rates. However, even well-designed ductwork isn’t completely leak-proof. And if you close several air vents, the increased pressure within the duct system causes more leaks. This forces air from unconditioned spaces to circulate around your home, reducing the efficiency of your air conditioner and furnace.

Increased Energy Use from Variable-Speed Blower Motors

The high pressure within the duct system causes variable-speed blower motors to work harder as they attempt to maintain adequate airflow. This defeats your efforts to save energy.

Lower Airflow from Single-Speed Blower Motors

Most HVAC systems have a single-speed blower motor that operates at only two settings: on and off. It can’t combat the high pressure within the duct system, resulting in lower airflow. This means less heated and cooled air circulates around your home, making it less comfortable. Low airflow can also cause the AC evaporator coil to freeze, which makes the air conditioner unable to cool your home.

Greater Wear & Tear on the System

Low airflow over the AC evaporator coil causes some refrigerant to make it back to the compressor as a liquid, damaging this equipment over time. There’s also a higher chance for a cracked furnace heat exchanger, which requires immediate repair.

Better Energy Saving Tips to Try

If you’re discouraged after learning that closing vents doesn’t save energy, try these other more effective energy saving tips:

  • Partially close vents to help direct hot and cold air around the way you want.
  • Install a zoning system to heat and cool certain areas of your home efficiently. Multiple thermostats, air handlers, and dampers in the ductwork direct air right where you want it without any unintended consequences.
  • Upgrade your aging HVAC equipment to a new, energy-efficient model.

For help implementing these and other energy saving tips, please contact Arctic Air Conditioning today.

Testimonials
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”Had Arctic Air service my system. Sammy Castro, the technician did an excellent job explaining everything he was doing. Highly recommend Arctic Air.”

- Rich Colasuonno
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”I own a business and needed a technician to come out ASAP! Customer Service at Arctic Air arranged for next day service. When they arrived (2 techs) they were prompt,…”

- Judith Jones
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”Great job and the best tech. Always happy to do business with you guys. A big shout out to Howard!!!!”

- Alan Choback
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”great service .Edwardo is a great asset for your company”

- Joan Marshall
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”Always professional - reliable and credible services.”

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”These guys worked hard all day to get my HVAC installed and ready in time. Does an excellent job and very professional! You guys rock! Definitely will highly recommend to…”

- Reg Avis
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”Anthony was on time, courteous and knowledgeable.”

- me me
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”Arctic Air Conditioning, sent Sammy Castro to summarize our air conditioner. He was wonderful. He explained everything that he had to do and was a gentleman! Thank you Artic for…”

- Wendy Schnadow Seidenberg
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”Can’t beat the honesty and professionalism of this company. Eduardo the tech was amazing and knows his job in and out. Thank you!!”

- Doug Junior
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”Artic Air is always very professional an e mail is sent with the pic of the technician that wii. be coming. My tech tech was Sammy he courteous, on time…”

- Linda Martino
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”Always a professional experience”

- Jose Cruz
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”Second time using Artic very professional and communication is great.”

- Tom Goletz
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”Arctic Air is a great company; honest, trustworthy and employ competent technicians. Always a good experience when dealing with Arctic Air. Would recommend their services to everyone,”

- Patricia Martino
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”I have been using Arctic Air for over 40 Years. They are a superb company with fine knowledgeable employees. I have never had a problem with Artic”

- Ira Lenner
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”Technician was pleasant knowledgeable and explained my options Appreciated his honesty”

- Lynda Misyak
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”David came out on a Sunday as our AC unit stopped pumping cold air the night before and we have a newborn baby in the house. He was kind, knowledgeable…”

- Christopher E. Horn
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”Fast Dependable reliable service”

- David Schutzer
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”Technician Jerry Scaglione was extremely professional, he called ahead before arriving, did careful diagnostic of the existing system, explained different options, listened to our concerns, and made an excellent recommendation…”

- Zhengyuan Chen
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”Tony did a great job!”

- Ivy Davis
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”Technician Robert came out to my house today from Arctic air in old bridge NJ and he was very proffetional and new what to do. On top of that also…”

- Alex Lysenko
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”Had a water leak from my furnace in the middle of the night and called Arctic Air first thing in the morning. With in an hour technician Frank was at…”

- Eileen Epstein Snyder
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