Allowable Duct Length Calculator
Calculates maximum allowable duct length
This easy-to-use, flexible tool calculates maximum allowable duct length to hit a given delivered cfm airflow level based on basic inputs: CFM required, fan model, duct diameter, duct type (flex or rigid) and number of elbows. One of its many convenient applications is the ability to demonstrate on-the-spot 2015 IRC code compliance without field testing or the use of complex tables.
Use our Allowable Duct Length Calculator to calculates maximum allowable duct length. CLICK HERE to begin.