Which of the following helps to minimize energy loss in ductwork?

Sealing gaps in ductwork is essential for minimizing energy loss because any openings or leaks in the ducting system allow conditioned air to escape into unoccupied spaces, such as attics or walls. This results in an inefficiency where the HVAC system must work harder to maintain desired indoor temperatures, leading to increased energy consumption and higher utility bills. Properly sealing gaps ensures that the airflow remains directed where it is needed, maintaining the efficiency and performance of the heating and cooling systems.

Effective sealing practices, such as using mastic sealant or metal tape, prevent airflow leakage and enhance the overall efficiency of the HVAC system. This contributes to better energy savings, improved comfort levels within the building, and reduced wear on the system itself.

Using inadequate insulation or leaving gaps unsealed works against the goal of energy efficiency, as does reducing maintenance frequency, which could lead to system inefficiencies over time. Therefore, sealing gaps is the most effective method for reducing energy loss in ductwork, directly contributing to a more efficient HVAC operation.