Keeping too many heat registers closed can cause heat to build up in your furnace, forcing air out of duct leaks and requiring the blowers to compensate for the added pressure. Essentially, blocking heating vents causes your furnace to work harder and longer than it is intended to work. Further, it forces air pressure to build up in your air ducts, which may both cause and worsens airflow leaks — particularly at joints and seams. Pros recommend keeping at least 80 percent of your heating registers open to prevent unnecessary air from building up in your furnace.
At Genz-Ryan, we are here for you 24 hours a day, 7 days a week so you can count on us for all your heating repair work in the Minneapolis area. Our furnace repair technicians are well-trained and experienced. They’re ready to take care of any heating issue that you may have. We are a Lennox Premier Furnace Dealer and provide expert furnace repair service for most of the Minneapolis/St. Paul area. For over 60 years we have been getting the job done right the first time.