Supports both I-P (Inch-Pound) and SI (Metric) units.
Leo never found the site again, but his ducts were always quiet, and his pressure losses were always zero. Some say he still hears the software whispering in the hum of the office lights. ashrae duct fitting database 6.00 05 free download
Available through the ASHRAE Bookstore via an annual cloud-based subscription. It is sold as a single-user product and is no longer available on CD. Supports both I-P (Inch-Pound) and SI (Metric) units