What impact can poorly sealed ducts have on an A/C system?

Poorly sealed ducts significantly impact an A/C system in several detrimental ways. When ductwork is not properly sealed, air can escape from or infiltrate the duct system, which disrupts the intended flow of conditioned air throughout the building. This leakage results in increased energy consumption because the system must work harder to maintain the desired temperature. Essentially, the A/C unit has to compensate for the lost cooled air, leading to higher energy bills.

In addition to increased energy consumption, poorly sealed ducts can also lead to decreased indoor air quality. Unsealed ducts may allow dust, allergens, and other contaminants from attics or crawlspaces to enter the airstream, reducing the cleanliness of the air circulated within the living environment. This can have significant health implications for occupants, especially those with respiratory issues or allergies.

Thus, the impact of poorly sealed ducts includes both higher energy costs and potential harm to indoor air quality, validating the choice that both increased energy consumption and reduced indoor air quality are direct consequences of this issue.