Which of the following is an indication of duct leakage in HVAC systems?

Higher energy bills are an indication of duct leakage in HVAC systems because when there are leaks in the ductwork, conditioned air can escape into unconditioned spaces. This leads to the heating or cooling system working overtime to maintain the desired temperature within the living areas. As a result, the system consumes more energy, which directly translates to higher energy bills.

When duct leakage occurs, the efficiency of the HVAC system decreases. Homeowners may notice that despite their system running longer, the desired climate comfort in their space is not achieved. The extra energy expenditures are a stark indication of inefficiency, making higher energy bills a reliable signal of potential duct leakage issues.