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Matt Mountain currently serves on NADCA’s Education & Safety Committee, Editorial Committee, and the Ethics Committee.

The Manual D procedures match duct system resistance (pressure drop) to blower performance (as defined by the HVAC system manufacturer’s blower performance tables). This delivers appropriate airflow to the rooms and spaces to be conditioned while ensuring that system airflow is compatible with the operating range of the HVAC equipment.

You perform maintenance each year, but by the next maintenance visit, dirt and grime are in the equipment again. Have you ever wondered why this happens?

The National Air Duct Cleaners Association's 2023 Fall Technical Conference is scheduled for September 7-9 in Grapevine, Texas, near Dallas. Those in the field who have not attended before can apply for a scholarship.

The company currently operates largely in North America, but sees significant opportunities in the U.K. and the rest of Europe.