During install, technicians seal duct leaks and stability registers, bettering airflow, decreasing hot and chilly spots

https://www.mediafire.com/file/4i7xanh7fy199ob/pdf-60435-84368.pdf/file

During install, technicians seal duct leaks and steadiness registers, making improvements to airflow, decreasing hot and chilly spots, and boosting furnace efficiency extensively.