What is a primary result of properly insulating an HVAC system?

Proper insulation of an HVAC system leads to enhanced energy efficiency. Insulation minimizes heat transfer between the system and its surroundings, which means that the system can maintain the desired temperature without having to work as hard. This results in less energy consumption for both heating and cooling, leading to reduced energy bills and a smaller carbon footprint. Additionally, enhanced energy efficiency contributes to improved comfort levels in the space being conditioned, as temperature fluctuations are minimized. Therefore, the correct choice reflects the key benefit of insulation in an HVAC context.