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HVAC Return Air Plenum Sizing Calculator
HVAC Return Air Plenum Sizing Calculator
System Airflow (CFM)
*
Target Plenum Velocity (FPM)
*
350 FPM - Standard Residential
250 FPM - Ultra Quiet
300 FPM - Premium Residential
350 FPM - Standard Residential
400 FPM - High Velocity Residential
500 FPM - Light Commercial
250 FPM - Ultra Quiet
300 FPM - Premium Residential
350 FPM - Standard Residential
400 FPM - High Velocity Residential
500 FPM - Light Commercial
Plenum Aspect Ratio (Width:Height)
*
1.5:1
1:1
1.5:1
2:1
3:1
1:1
1.5:1
2:1
3:1
Calculate
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