Gas Heat ESCO Practice Exam 2026 – Comprehensive All-in-One Guide for Exam Success!

Sealing and insulating duct systems is primarily aimed at preventing conditioned air from escaping the ductwork. When duct systems are leaky or poorly insulated, significant amounts of heated or cooled air can be lost as it travels through the system. This loss not only diminishes the efficiency of the heating and cooling system but also leads to increased energy consumption and higher utility bills.

By properly sealing and insulating the ducts, energy efficiency is improved, ensuring that the maximum amount of conditioned air reaches its intended space. This ensures consistent temperatures throughout a building, enhances comfort for occupants, and reduces the strain on HVAC systems, ultimately contributing to lower operating costs and improved system longevity.

The other options, while they may bring some value in different contexts, do not address the core goal of sealing and insulating ductwork, which is fundamentally linked to energy efficiency and the effectiveness of climate control in buildings.