What is a potential consequence of air leakage in heat pump systems?

Air leakage in heat pump systems can lead to reduced system longevity due to the increased strain it places on the unit. When there are leaks in the ductwork or around the heat pump, conditioned air can escape while unconditioned air enters. This imbalance forces the heat pump to work harder to maintain the desired temperature within the home, resulting in excess wear and tear on the components.

As the system operates under these strained conditions, parts such as the compressor and motor can experience premature failure. The increased runtime not only affects component durability but can also lead to higher maintenance costs and ultimately necessitate earlier replacement of the heat pump itself.

In contrast, the other options present outcomes opposite to those caused by air leakage. Increased energy efficiency and decreased operational costs are typically the benefits of a well-sealed system, while an improved indoor climate is also facilitated by maintaining effective airflow and temperature control, which air leakage undermines.