What is the purpose of insulation around ductwork in a heat pump system?

The purpose of insulation around ductwork in a heat pump system primarily focuses on maintaining air temperature and enhancing system efficiency. When ductwork is insulated, it helps to minimize heat loss or gain as conditioned air travels through the ducts. This is especially important when ducts run through unconditioned spaces, such as attics or crawl spaces, where temperature differences can lead to energy loss.

By maintaining a more consistent temperature of the air within the ducts, insulation ensures that the heat pump operates more efficiently, delivering the intended heating or cooling to the living spaces without straining the system. The overall result is reduced energy consumption and lower utility bills, making it both an economical and environmentally friendly choice for homeowners.

The other options do not align with the primary function of insulation in ductwork for heat pumps, focusing instead on aspects unrelated to temperature control and efficiency.