Supply Register Cfm Chart. Generally, the size of hvac diffusers should be based on an airflow of around 250 cfm and a noise level of below nc30. 2 ft length by 2 ft width and 8 inches inlet diameter is the most.
2 ft length by 2 ft width and 8 inches inlet diameter is the most. Generally, the size of hvac diffusers should be based on an airflow of around 250 cfm and a noise level of below nc30.
1 Supply register cfm chart
Generally, The Size Of Hvac Diffusers Should Be Based On An Airflow Of Around 250 Cfm And A Noise Level Of Below Nc30.
2 ft length by 2 ft width and 8 inches inlet diameter is the most.