Why is air duct so important?

When the Heating & A/C tech came in & did the inspection on our gas furnace, he also serviced the air duct.

He told us he had noticed a couple of cracks along the seams of the air duct.

He wanted to call a team of professional air duct cleaners & have them inspect the entire air duct system & see if it needed repaired or replaced? If it was able to be repaired, they would service the air duct, then clean & sanitize it. I anxious about what it was going to cost if I needed to replace the air duct. I knew it had to be pretty old. The air duct was already in the home when the people I was with and I bought it, nearly fifteen years earlier. I agreed to have the air duct professionals come to the home & inspect the air duct. When they arrived, I asked them why the air duct was so important. They explained that the air duct was love a major highway. It is how the heating & a/c is directed through the entire house. When there was a crack or hole somewhere in the air duct, there was a loss of heat or AC coming through that hole. Every one of us would be wasting energy since the people I was with and I didn’t have proper airflow, & there was a loss of energy/Heating & A/C. I didn’t want to be losing heat or a/c, but I knew it would be pricey to replace the air duct. I held our breath as the inspection was done. Luckily, all they had to do was seal the air duct, & then they cleaned & sanitized it. Our air duct was wonderful for at least another many years.

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