How to Improve the Efficiency of Your Home's Ducts

February 09, 2021

While you might have a furnace or air conditioner made by a name-brand manufacturer and properly serviced with annual professional maintenance, duct efficiency is still a major factor in system performance and operating costs. An HVAC system in an average residence circulates more than 1,000 cubic feet of conditioned air per minute through the ductwork. Duct efficiency impacts airflow volume, temperature consistency, indoor air quality, and even wear and tear on furnace and AC components.

Optimum duct efficiency is a very achievable goal in most houses. A qualified HVAC contractor offers solutions to most common duct issues, including the following:

Duct Leakage

Over time, most residential ducts begin to leak. Valuable cooled or heated airflow leaks out into zones like the attic, crawl space, or inside wall voids, never reaching living spaces. Meanwhile, operating costs climb and temperatures are inconsistent. Also, duct leaks may actually draw unhealthy, unfiltered air into the system and circulate it into living spaces. An HVAC professional can pressure-test ducts to determine the precise amount of leakage, then pinpoint and resolve issues such as leaky joints, deteriorated duct material, and collapsed duct segments.

Closed Vents

Duct airflow volume is carefully balanced with all supply and return vents in the open position. Vents deliberately closed in certain rooms — or inadvertently obstructed by furniture or other objects — may imbalance airflow into other rooms. This impacts duct efficiency, as some rooms don’t get enough conditioned airflow and are chronically uncomfortable, while others may get too much airflow. For optimum duct efficiency, keep all air vents open at all times.

Uninsulated Ducts

Ductwork routed through areas of the house like the attic or crawl space may be exposed to low or high temperature extremes, depending on the season. This can affect airflow and make your furnace or AC less efficient and subject to more wear and tear to maintain temperature settings. Improve duct efficiency by having ducts in unconditioned zones insulated to prevent excessive heat loss or heat gain.

For more information about duct efficiency and how to optimize it in your home, contact Aggressive Mechanical Contractors.